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Added demo for PIC18F6720 with MS/TP datalink layer. Untested.

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This commit is contained in:
skarg
2007-02-01 21:37:53 +00:00
parent c27c5002d5
commit 42985437e5
19 changed files with 4377 additions and 153 deletions
Download Patch File Download Diff File Expand all files Collapse all files
bacnet-stack/bacenum.h
+4 -2
View File
@@ -311,7 +311,8 @@ typedef enum {
STATUS_OPERATIONAL_READ_ONLY = 1,
STATUS_DOWNLOAD_REQUIRED = 2,
STATUS_DOWNLOAD_IN_PROGRESS = 3,
STATUS_NON_OPERATIONAL = 4
STATUS_NON_OPERATIONAL = 4,
MAX_DEVICE_STATUS = 5
} BACNET_DEVICE_STATUS;
typedef enum {
@@ -1033,7 +1034,8 @@ typedef enum {
REINITIALIZED_STATE_END_BACKUP = 3,
REINITIALIZED_STATE_START_RESTORE = 4,
REINITIALIZED_STATE_END_RESTORE = 5,
REINITIALIZED_STATE_ABORT_RESTORE = 6
REINITIALIZED_STATE_ABORT_RESTORE = 6,
REINITIALIZED_STATE_IDLE = 255
} BACNET_REINITIALIZED_STATE_OF_DEVICE;
typedef enum {
bacnet-stack/datalink.c
-118
View File
@@ -1,118 +0,0 @@
/*####COPYRIGHTBEGIN####
-------------------------------------------
Copyright (C) 2004 Steve Karg
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to:
The Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA.
As a special exception, if other files instantiate templates or
use macros or inline functions from this file, or you compile
this file and link it with other works to produce a work based
on this file, this file does not by itself cause the resulting
work to be covered by the GNU General Public License. However
the source code for this file must still be made available in
accordance with section (3) of the GNU General Public License.
This exception does not invalidate any other reasons why a work
based on this file might be covered by the GNU General Public
License.
-------------------------------------------
####COPYRIGHTEND####*/
#include <stddef.h>
#include <stdint.h>
#include <stdbool.h>
#include "datalink.h"
/* currently this is oriented to a single data link */
/* However, it could handle multiple data links with the */
/* addition of passing a network number or datalink number */
/* as part of the calls. */
/* returns number of bytes sent on success, negative on failure */
int datalink_send_pdu(BACNET_ADDRESS * dest, /* destination address */
BACNET_NPDU_DATA * npdu_data, /* network information */
uint8_t * pdu, /* any data to be sent - may be null */
unsigned pdu_len)
{ /* number of bytes of data */
#if defined(BACDL_ARCNET)
return arcnet_send_pdu(dest, npdu_data, pdu, pdu_len);
#elif defined(BACDL_MSTP)
return dlmstp_send_pdu(dest, npdu_data, pdu, pdu_len);
#elif defined(BACDL_ETHERNET)
return ethernet_send_pdu(dest, npdu_data, pdu, pdu_len);
#elif defined(BACDL_BIP)
return bip_send_pdu(dest, npdu_data, pdu, pdu_len);
#else
return 0;
#endif
}
/* returns the number of octets in the PDU, or zero on failure */
uint16_t datalink_receive(BACNET_ADDRESS * src, /* source address */
uint8_t * pdu, /* PDU data */
uint16_t max_pdu, /* amount of space available in the PDU */
unsigned timeout)
{ /* number of milliseconds to wait for a packet */
#if defined(BACDL_ARCNET)
return arcnet_receive(src, pdu, max_pdu, timeout);
#elif defined(BACDL_MSTP)
return dlmstp_receive(src, pdu, max_pdu, timeout);
#elif defined(BACDL_ETHERNET)
return ethernet_receive(src, pdu, max_pdu, timeout);
#elif defined(BACDL_BIP)
return bip_receive(src, pdu, max_pdu, timeout);
#else
return 0;
#endif
}
void datalink_cleanup(void)
{
#if defined(BACDL_ARCNET)
arcnet_cleanup();
#elif defined(BACDL_MSTP)
dlmstp_cleanup();
#elif defined(BACDL_ETHERNET)
ethernet_cleanup();
#elif defined(BACDL_BIP)
bip_cleanup();
#endif
}
void datalink_get_broadcast_address(BACNET_ADDRESS * dest)
{ /* destination address */
#if defined(BACDL_ARCNET)
arcnet_get_broadcast_address(dest);
#elif defined(BACDL_MSTP)
dlmstp_get_broadcast_address(dest);
#elif defined(BACDL_ETHERNET)
ethernet_get_broadcast_address(dest);
#elif defined(BACDL_BIP)
bip_get_broadcast_address(dest);
#endif
}
void datalink_get_my_address(BACNET_ADDRESS * my_address)
{
#if defined(BACDL_ARCNET)
arcnet_get_my_address(my_address);
#elif defined(BACDL_MSTP)
dlmstp_get_my_address(my_address);
#elif defined(BACDL_ETHERNET)
ethernet_get_my_address(my_address);
#elif defined(BACDL_BIP)
bip_get_my_address(my_address);
#endif
}
bacnet-stack/datalink.h
+28 -31
View File
@@ -34,45 +34,42 @@
#ifndef DATALINK_H
#define DATALINK_H
#include <stdbool.h>
#include <stdint.h>
#include <stddef.h>
#include "bacdef.h"
#include "npdu.h"
#if defined(BACDL_ETHERNET)
#include "ethernet.h"
#define datalink_send_pdu ethernet_send_pdu
#define datalink_receive ethernet_receive
#define datalink_cleanup ethernet_cleanup
#define datalink_get_broadcast_address ethernet_get_broadcast_address
#define datalink_get_my_address ethernet_get_my_address
#elif defined(BACDL_ARCNET)
#include "arcnet.h"
#define datalink_send_pdu arcnet_send_pdu
#define datalink_receive arcnet_receive
#define datalink_cleanup arcnet_cleanup
#define datalink_get_broadcast_address arcnet_get_broadcast_address
#define datalink_get_my_address arcnet_get_my_address
#elif defined(BACDL_MSTP)
#include "dlmstp.h"
#define datalink_send_pdu dlmstp_send_pdu
#define datalink_receive dlmstp_receive
#define datalink_cleanup dlmstp_cleanup
#define datalink_get_broadcast_address dlmstp_get_broadcast_address
#define datalink_get_my_address dlmstp_get_my_address
#elif defined(BACDL_BIP)
#include "bip.h"
#define datalink_send_pdu bip_send_pdu
#define datalink_receive bip_receive
#define datalink_cleanup bip_cleanup
#define datalink_get_broadcast_address bip_get_broadcast_address
#define datalink_get_my_address bip_get_my_address
#endif
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/* returns number of bytes sent on success, negative on failure */
int datalink_send_pdu(BACNET_ADDRESS * dest, /* destination address */
BACNET_NPDU_DATA * npdu_data, /* network information */
uint8_t * pdu, /* any data to be sent - may be null */
unsigned pdu_len); /* number of bytes of data */
/* returns the number of octets in the PDU, or zero on failure */
uint16_t datalink_receive(BACNET_ADDRESS * src, /* source address */
uint8_t * pdu, /* PDU data */
uint16_t max_pdu, /* amount of space available in the PDU */
unsigned timeout); /* number of milliseconds to wait for a packet */
void datalink_cleanup(void);
void datalink_get_broadcast_address(BACNET_ADDRESS * dest); /* destination address */
void datalink_get_my_address(BACNET_ADDRESS * my_address);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif
bacnet-stack/demo/handler/h_rp.c
+4 -2
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@@ -54,7 +54,8 @@ static uint8_t Temp_Buf[MAX_APDU] = { 0 };
void handler_read_property(uint8_t * service_request,
uint16_t service_len,
BACNET_ADDRESS * src, BACNET_CONFIRMED_SERVICE_DATA * service_data)
BACNET_ADDRESS * src,
BACNET_CONFIRMED_SERVICE_DATA * service_data)
{
BACNET_READ_PROPERTY_DATA data;
int len = 0;
@@ -76,14 +77,15 @@ void handler_read_property(uint8_t * service_request,
if (len <= 0)
fprintf(stderr, "Unable to decode Read-Property Request!\n");
#endif
/* bad decoding - send an abort */
if (len < 0) {
/* bad decoding - send an abort */
len = abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, ABORT_REASON_OTHER, true);
#if PRINT_ENABLED
fprintf(stderr, "Sending Abort!\n");
#endif
} else if (service_data->segmented_message) {
/* we don't support segmentation - send an abort */
len = abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id,
ABORT_REASON_SEGMENTATION_NOT_SUPPORTED, true);
bacnet-stack/ports/pic18f6720/18F6720.lkr
+38
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@@ -0,0 +1,38 @@
// $Id: 18f6720.lkr,v 1.1 2003/12/16 14:53:08 GrosbaJ Exp $
// File: 18f6720.lkr
// Sample linker script for the PIC18F6720 processor
LIBPATH .
FILES c018i.o
FILES clib.lib
FILES p18f6720.lib
CODEPAGE NAME=vectors START=0x0 END=0x29 PROTECTED
CODEPAGE NAME=page START=0x2A END=0x1FFFF
CODEPAGE NAME=idlocs START=0x200000 END=0x200007 PROTECTED
CODEPAGE NAME=config START=0x300000 END=0x30000D PROTECTED
CODEPAGE NAME=devid START=0x3FFFFE END=0x3FFFFF PROTECTED
CODEPAGE NAME=eedata START=0xF00000 END=0xF003FF PROTECTED
ACCESSBANK NAME=accessram START=0x0 END=0x5F
DATABANK NAME=gpr0 START=0x60 END=0xFF
DATABANK NAME=gpr1 START=0x100 END=0x1FF
DATABANK NAME=gpr2 START=0x200 END=0x2FF
DATABANK NAME=gpr3 START=0x300 END=0x3FF
DATABANK NAME=gpr4 START=0x400 END=0x4FF
DATABANK NAME=gpr5 START=0x500 END=0x5FF
DATABANK NAME=gpr6 START=0x600 END=0x6FF
DATABANK NAME=gpr7 START=0x700 END=0x7FF
DATABANK NAME=gpr8 START=0x800 END=0x8FF
DATABANK NAME=gpr9 START=0x900 END=0x9FF
DATABANK NAME=gpr10 START=0xA00 END=0xAFF
DATABANK NAME=gpr11 START=0xB00 END=0xBFF
DATABANK NAME=gpr12 START=0xC00 END=0xCFF
DATABANK NAME=gpr13 START=0xD00 END=0xDFF
DATABANK NAME=gpr14 START=0xE00 END=0xEFF
ACCESSBANK NAME=accesssfr START=0xF60 END=0xFFF PROTECTED
SECTION NAME=CONFIG ROM=config
STACK SIZE=0x100 RAM=gpr14
bacnet-stack/ports/pic18f6720/BACnet-Server.mcp
+145
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@@ -0,0 +1,145 @@
[HEADER]
magic_cookie={66E99B07-E706-4689-9E80-9B2582898A13}
file_version=1.0
[PATH_INFO]
dir_src=
dir_bin=
dir_tmp=
dir_sin=
dir_inc=C:\code\bacnet-stack;C:\code\bacnet-stack\demo\handler;C:\code\bacnet-stack\demo\object;C:\code\bacnet-stack\ports\pic18
dir_lib=C:\mcc18\lib
dir_lkr=
[CAT_FILTERS]
filter_src=*.asm;*.c
filter_inc=*.h;*.inc
filter_obj=*.o
filter_lib=*.lib
filter_lkr=*.lkr
[OTHER_FILES]
file_000=no
file_001=no
file_002=no
file_003=no
file_004=no
file_005=no
file_006=no
file_007=no
file_008=no
file_009=no
file_010=no
file_011=no
file_012=no
file_013=no
file_014=no
file_015=no
file_016=no
file_017=no
file_018=no
file_019=no
file_020=no
file_021=no
file_022=no
file_023=no
file_024=no
file_025=no
file_026=no
file_027=no
file_028=no
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file_030=no
file_031=no
file_032=no
file_033=no
file_034=no
file_035=no
file_036=no
file_037=no
file_038=no
file_039=no
file_040=no
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file_042=no
file_043=no
file_044=no
file_045=no
file_046=no
file_047=no
file_048=no
file_049=no
file_050=no
file_051=no
file_052=no
file_053=no
file_054=no
file_055=no
file_056=no
file_057=no
file_058=no
[FILE_INFO]
file_000=C:\code\bacnet-stack\abort.c
file_001=C:\code\bacnet-stack\apdu.c
file_002=C:\code\bacnet-stack\bacapp.c
file_003=C:\code\bacnet-stack\bacdcode.c
file_004=C:\code\bacnet-stack\bacerror.c
file_005=C:\code\bacnet-stack\bacstr.c
file_006=C:\code\bacnet-stack\crc.c
file_007=C:\code\bacnet-stack\dcc.c
file_008=C:\code\bacnet-stack\iam.c
file_009=C:\code\bacnet-stack\npdu.c
file_010=C:\code\bacnet-stack\rd.c
file_011=C:\code\bacnet-stack\reject.c
file_012=C:\code\bacnet-stack\rp.c
file_013=C:\code\bacnet-stack\whois.c
file_014=C:\code\bacnet-stack\demo\handler\h_dcc.c
file_015=C:\code\bacnet-stack\demo\handler\h_rd.c
file_016=main.c
file_017=dlmstp.c
file_018=device.c
file_019=rs485.c
file_020=isr.c
file_021=C:\code\bacnet-stack\datetime.c
file_022=C:\code\bacnet-stack\demo\handler\txbuf.c
file_023=C:\code\bacnet-stack\demo\handler\h_whois.c
file_024=mstp.c
file_025=C:\code\bacnet-stack\demo\handler\h_rp_tiny.c
file_026=C:\code\bacnet-stack\wp.h
file_027=C:\code\bacnet-stack\abort.h
file_028=C:\code\bacnet-stack\apdu.h
file_029=C:\code\bacnet-stack\bacapp.h
file_030=C:\code\bacnet-stack\bacdcode.h
file_031=C:\code\bacnet-stack\bacdef.h
file_032=C:\code\bacnet-stack\bacenum.h
file_033=C:\code\bacnet-stack\bacerror.h
file_034=C:\code\bacnet-stack\bacstr.h
file_035=C:\code\bacnet-stack\config.h
file_036=C:\code\bacnet-stack\crc.h
file_037=C:\code\bacnet-stack\dcc.h
file_038=C:\code\bacnet-stack\dlmstp.h
file_039=C:\code\bacnet-stack\iam.h
file_040=C:\code\bacnet-stack\npdu.h
file_041=C:\code\bacnet-stack\rd.h
file_042=C:\code\bacnet-stack\reject.h
file_043=C:\code\bacnet-stack\rp.h
file_044=C:\code\bacnet-stack\whois.h
file_045=C:\code\bacnet-stack\demo\handler\client.h
file_046=C:\code\bacnet-stack\demo\handler\handlers.h
file_047=C:\code\bacnet-stack\demo\object\ai.h
file_048=C:\code\bacnet-stack\demo\object\ao.h
file_049=C:\code\bacnet-stack\demo\object\device.h
file_050=stdbool.h
file_051=stdint.h
file_052=hardware.h
file_053=rs485.h
file_054=C:\code\bacnet-stack\datetime.h
file_055=datalink.h
file_056=C:\code\bacnet-stack\demo\handler\txbuf.h
file_057=mstp.h
file_058=18F6720.lkr
[SUITE_INFO]
suite_guid={5B7D72DD-9861-47BD-9F60-2BE967BF8416}
suite_state=
[TOOL_SETTINGS]
TS{DD2213A8-6310-47B1-8376-9430CDFC013F}=
TS{BFD27FBA-4A02-4C0E-A5E5-B812F3E7707C}=/m"$(BINDIR_)$(TARGETBASE).map" /o"$(TARGETBASE).cof"
TS{C2AF05E7-1416-4625-923D-E114DB6E2B96}=-DPRINT_ENABLED=0 -DBACDL_MSTP=1 -DTSM_ENABLED=0 -DBIG_ENDIAN=0 -mL -Ls -Ou- -Ot- -Ob- -Op- -Or- -Od- -Opa-
TS{ADE93A55-C7C7-4D4D-A4BA-59305F7D0391}=
bacnet-stack/ports/pic18f6720/BACnet-Server.mcw
BIN
View File
Binary file not shown.
bacnet-stack/ports/pic18f6720/device.c
+567
View File
@@ -0,0 +1,567 @@
/**************************************************************************
*
* Copyright (C) 2007 Steve Karg <skarg@users.sourceforge.net>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*********************************************************************/
#include <stdbool.h>
#include <stdint.h>
#include <string.h> /* for memmove */
#include "bacdef.h"
#include "bacdcode.h"
#include "bacstr.h"
#include "bacenum.h"
#include "config.h" /* the custom stuff */
#include "apdu.h"
#include "device.h" /* me */
#include "dlmstp.h"
#include "rs485.h"
#include "ai.h"
#include "bi.h"
#include "bv.h"
#include "wp.h"
#include "dcc.h"
/* note: you really only need to define variables for
properties that are writable or that may change.
The properties that are constant can be hard coded
into the read-property encoding. */
static uint32_t Object_Instance_Number = 12345;
static BACNET_DEVICE_STATUS System_Status = STATUS_OPERATIONAL;
BACNET_REINITIALIZED_STATE_OF_DEVICE Reinitialize_State =
REINITIALIZED_STATE_IDLE;
void Device_Reinit(void)
{
dcc_set_status_duration(COMMUNICATION_ENABLE,0);
Device_Set_Object_Instance_Number(BACNET_MAX_INSTANCE);
}
void Device_Init(void)
{
Reinitialize_State = REINITIALIZED_STATE_IDLE;
dcc_set_status_duration(COMMUNICATION_ENABLE,0);
/* FIXME: Get the data from the eeprom */
/* I2C_Read_Block(EEPROM_DEVICE_ADDRESS,
(char *)&Object_Instance_Number,
sizeof(Object_Instance_Number),
EEPROM_BACNET_ID_ADDR); */
}
/* methods to manipulate the data */
uint32_t Device_Object_Instance_Number(void)
{
return Object_Instance_Number;
}
bool Device_Set_Object_Instance_Number(uint32_t object_id)
{
bool status = true; /* return value */
if (object_id <= BACNET_MAX_INSTANCE)
{
Object_Instance_Number = object_id;
/* FIXME: Write the data to the eeprom */
/* I2C_Write_Block(
EEPROM_DEVICE_ADDRESS,
(char *)&Object_Instance_Number,
sizeof(Object_Instance_Number),
EEPROM_BACNET_ID_ADDR); */
}
else
status = false;
return status;
}
bool Device_Valid_Object_Instance_Number(uint32_t object_id)
{
/* BACnet allows for a wildcard instance number */
return ((Object_Instance_Number == object_id) ||
(object_id == BACNET_MAX_INSTANCE));
}
BACNET_DEVICE_STATUS Device_System_Status(void)
{
return System_Status;
}
void Device_Set_System_Status(BACNET_DEVICE_STATUS status)
{
if (status < MAX_DEVICE_STATUS)
System_Status = status;
}
/* FIXME: put your vendor ID here! */
uint16_t Device_Vendor_Identifier(void)
{
return 0;
}
uint8_t Device_Protocol_Version(void)
{
return 1;
}
uint8_t Device_Protocol_Revision(void)
{
return 5;
}
/* FIXME: MAX_APDU is defined in config.ini - set it! */
uint16_t Device_Max_APDU_Length_Accepted(void)
{
return MAX_APDU;
}
BACNET_SEGMENTATION Device_Segmentation_Supported(void)
{
return SEGMENTATION_NONE;
}
uint16_t Device_APDU_Timeout(void)
{
return 60000;
}
uint8_t Device_Number_Of_APDU_Retries(void)
{
return 0;
}
uint8_t Device_Database_Revision(void)
{
return 0;
}
/* Since many network clients depend on the object list */
/* for discovery, it must be consistent! */
unsigned Device_Object_List_Count(void)
{
unsigned count = 1;/* at least 1 for device object */
/* FIXME: add objects as needed */
#if 0
count += Binary_Value_Count();
count += Analog_Input_Count();
count += Binary_Input_Count();
#endif
return count;
}
/* Since many network clients depend on the object list */
/* for discovery, it must be consistent! */
bool Device_Object_List_Identifier(unsigned array_index,
int *object_type, uint32_t * instance)
{
bool status = false;
unsigned object_index = 0;
unsigned object_count = 0;
/* device object */
if (array_index == 1) {
*object_type = OBJECT_DEVICE;
*instance = Object_Instance_Number;
status = true;
}
#if 0
/* FIXME: add objects as needed */
/* binary input objects */
if (!status) {
/* normalize the index since
we know it is not the previous objects */
/* array index starts at 1, and 1 for the device object */
object_index = array_index - 2;
object_count = Binary_Value_Count();
/* is it a valid index for this object? */
if (object_index < object_count) {
*object_type = OBJECT_BINARY_VALUE;
*instance = Binary_Value_Index_To_Instance(object_index);
status = true;
}
}
/* analog input objects */
if (!status) {
/* array index starts at 1, and 1 for the device object */
object_index -= object_count;
object_count = Analog_Input_Count();
if (object_index < object_count) {
*object_type = OBJECT_ANALOG_INPUT;
*instance = Analog_Input_Index_To_Instance(object_index);
status = true;
}
}
/* binary input objects */
if (!status) {
/* normalize the index since
we know it is not the previous objects */
object_index -= object_count;
object_count = Binary_Input_Count();
/* is it a valid index for this object? */
if (object_index < object_count) {
*object_type = OBJECT_BINARY_INPUT;
*instance = Binary_Input_Index_To_Instance(object_index);
status = true;
}
}
#endif
return status;
}
/* return the length of the apdu encoded or -1 for error */
int Device_Encode_Property_APDU(uint8_t * apdu,
BACNET_PROPERTY_ID property,
int32_t array_index,
BACNET_ERROR_CLASS * error_class, BACNET_ERROR_CODE * error_code)
{
int apdu_len = 0; /* return value */
int len = 0; /* apdu len intermediate value */
BACNET_BIT_STRING bit_string;
BACNET_CHARACTER_STRING char_string;
unsigned i = 0;
int object_type = 0;
uint32_t instance = 0;
unsigned count = 0;
BACNET_TIME local_time;
BACNET_DATE local_date;
uint8_t year = 0;
char string_buffer[24];
int16_t TimeZone = 0;
/* FIXME: change the hardcoded names to suit your application */
switch (property) {
case PROP_OBJECT_IDENTIFIER:
apdu_len = encode_tagged_object_id(&apdu[0], OBJECT_DEVICE,
Object_Instance_Number);
break;
case PROP_OBJECT_NAME:
(void)strcpypgm2ram(&string_buffer[0], "PIC18F6720 Device");
characterstring_init_ansi(&char_string, string_buffer);
apdu_len = encode_tagged_character_string(&apdu[0], &char_string);
break;
case PROP_OBJECT_TYPE:
apdu_len = encode_tagged_enumerated(&apdu[0], OBJECT_DEVICE);
break;
case PROP_DESCRIPTION:
(void)strcpypgm2ram(&string_buffer[0], "BACnet Demo");
characterstring_init_ansi(&char_string, string_buffer);
apdu_len = encode_tagged_character_string(&apdu[0], &char_string);
break;
case PROP_SYSTEM_STATUS:
apdu_len = encode_tagged_enumerated(&apdu[0], Device_System_Status());
break;
case PROP_VENDOR_NAME:
(void)strcpypgm2ram(&string_buffer[0], "ASHRAE");
characterstring_init_ansi(&char_string, string_buffer);
apdu_len = encode_tagged_character_string(&apdu[0], &char_string);
break;
case PROP_VENDOR_IDENTIFIER:
apdu_len = encode_tagged_unsigned(&apdu[0], Device_Vendor_Identifier());
break;
case PROP_MODEL_NAME:
(void)strcpypgm2ram(&string_buffer[0], "GNU Demo");
characterstring_init_ansi(&char_string, string_buffer);
apdu_len = encode_tagged_character_string(&apdu[0], &char_string);
break;
case PROP_FIRMWARE_REVISION:
(void)strcpypgm2ram(&string_buffer[0], "1.00");
characterstring_init_ansi(&char_string, string_buffer);
apdu_len = encode_tagged_character_string(&apdu[0], &char_string);
break;
case PROP_APPLICATION_SOFTWARE_VERSION:
(void)strcpypgm2ram(&string_buffer[0], "1.00");
characterstring_init_ansi(&char_string, string_buffer);
apdu_len = encode_tagged_character_string(&apdu[0], &char_string);
break;
case PROP_LOCATION:
(void)strcpypgm2ram(&string_buffer[0], "USA");
characterstring_init_ansi(&char_string, string_buffer);
apdu_len = encode_tagged_character_string(&apdu[0], &char_string);
break;
case PROP_PROTOCOL_VERSION:
apdu_len =
encode_tagged_unsigned(&apdu[0], Device_Protocol_Version());
break;
case PROP_PROTOCOL_REVISION:
apdu_len =
encode_tagged_unsigned(&apdu[0], Device_Protocol_Revision());
break;
/* BACnet Legacy Support */
case PROP_PROTOCOL_CONFORMANCE_CLASS:
apdu_len = encode_tagged_unsigned(&apdu[0], 1);
break;
case PROP_PROTOCOL_SERVICES_SUPPORTED:
/* Note: list of services that are executed, not initiated. */
bitstring_init(&bit_string);
for (i = 0; i < MAX_BACNET_SERVICES_SUPPORTED; i++) {
/* automatic lookup based on handlers set */
bitstring_set_bit(&bit_string, (uint8_t) i,
apdu_service_supported(i));
}
apdu_len = encode_tagged_bitstring(&apdu[0], &bit_string);
break;
case PROP_PROTOCOL_OBJECT_TYPES_SUPPORTED:
/* Note: this is the list of objects that can be in this device,
not a list of objects that this device can access */
bitstring_init(&bit_string);
for (i = 0; i < MAX_ASHRAE_OBJECT_TYPE; i++) {
/* initialize all the object types to not-supported */
bitstring_set_bit(&bit_string, (uint8_t) i, false);
}
/* FIXME: indicate the objects that YOU support */
bitstring_set_bit(&bit_string, OBJECT_DEVICE, true);
#if 0
bitstring_set_bit(&bit_string, OBJECT_BINARY_VALUE, true);
bitstring_set_bit(&bit_string, OBJECT_ANALOG_INPUT, true);
bitstring_set_bit(&bit_string, OBJECT_BINARY_INPUT, true);
#endif
apdu_len = encode_tagged_bitstring(&apdu[0], &bit_string);
break;
case PROP_OBJECT_LIST:
count = Device_Object_List_Count();
/* Array element zero is the number of objects in the list */
if (array_index == BACNET_ARRAY_LENGTH_INDEX)
apdu_len = encode_tagged_unsigned(&apdu[0], count);
/* if no index was specified, then try to encode the entire list */
/* into one packet. Note that more than likely you will have */
/* to return an error if the number of encoded objects exceeds */
/* your maximum APDU size. */
else if (array_index == BACNET_ARRAY_ALL) {
for (i = 1; i <= count; i++) {
if (Device_Object_List_Identifier(i, &object_type,
&instance)) {
len =
encode_tagged_object_id(&apdu[apdu_len],
object_type, instance);
apdu_len += len;
/* assume next one is the same size as this one */
/* can we all fit into the APDU? */
if ((apdu_len + len) >= MAX_APDU) {
*error_class = ERROR_CLASS_SERVICES;
*error_code = ERROR_CODE_NO_SPACE_FOR_OBJECT;
apdu_len = -1;
break;
}
} else {
/* error: internal error? */
*error_class = ERROR_CLASS_SERVICES;
*error_code = ERROR_CODE_OTHER;
apdu_len = -1;
break;
}
}
} else {
if (Device_Object_List_Identifier(array_index, &object_type,
&instance))
apdu_len =
encode_tagged_object_id(&apdu[0], object_type,
instance);
else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_INVALID_ARRAY_INDEX;
apdu_len = -1;
}
}
break;
case PROP_MAX_APDU_LENGTH_ACCEPTED:
apdu_len = encode_tagged_unsigned(&apdu[0],
Device_Max_APDU_Length_Accepted());
break;
case PROP_SEGMENTATION_SUPPORTED:
apdu_len = encode_tagged_enumerated(&apdu[0],
Device_Segmentation_Supported());
break;
case PROP_APDU_TIMEOUT:
apdu_len = encode_tagged_unsigned(&apdu[0], Device_APDU_Timeout());
break;
case PROP_NUMBER_OF_APDU_RETRIES:
apdu_len =
encode_tagged_unsigned(&apdu[0], Device_Number_Of_APDU_Retries());
break;
case PROP_DEVICE_ADDRESS_BINDING:
/* FIXME: encode the list here, if it exists */
break;
case PROP_DATABASE_REVISION:
apdu_len = encode_tagged_unsigned(&apdu[0], Device_Database_Revision());
break;
case PROP_MAX_INFO_FRAMES:
apdu_len = encode_tagged_unsigned(&apdu[0], dlmstp_max_info_frames());
break;
case PROP_MAX_MASTER:
apdu_len = encode_tagged_unsigned(&apdu[0], dlmstp_max_master());
break;
case PROP_LOCAL_TIME:
/* FIXME: if you support time */
local_time.hour = 0;
local_time.min = 0;
local_time.sec = 0;
local_time.hundredths = 0;
apdu_len = encode_tagged_time(&apdu[0], &local_time);
break;
case PROP_UTC_OFFSET:
/* Note: BACnet Time Zone is inverse of everybody else */
apdu_len = encode_tagged_signed(&apdu[0], 5 /* EST */);
break;
case PROP_LOCAL_DATE:
/* FIXME: if you support date */
local_date.year = 2006; /* AD */
local_date.month = 4; /* Jan=1..Dec=12 */
local_date.day = 11; /* 1..31 */
local_date.wday = 0; /* 1=Mon..7=Sun */
apdu_len = encode_tagged_date(&apdu[0], &local_date);
break;
case PROP_DAYLIGHT_SAVINGS_STATUS:
/* FIXME: if you support time/date */
apdu_len = encode_tagged_boolean(&apdu[0], false);
break;
case 9600:
apdu_len = encode_tagged_unsigned(&apdu[0], RS485_Get_Baud_Rate());
break;
default:
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_UNKNOWN_PROPERTY;
apdu_len = -1;
break;
}
return apdu_len;
}
bool Device_Write_Property(BACNET_WRITE_PROPERTY_DATA * wp_data,
BACNET_ERROR_CLASS * error_class, BACNET_ERROR_CODE * error_code)
{
bool status = false; /* return value */
int len = 0;
BACNET_APPLICATION_DATA_VALUE value;
if (!Device_Valid_Object_Instance_Number(wp_data->object_instance)) {
*error_class = ERROR_CLASS_OBJECT;
*error_code = ERROR_CODE_UNKNOWN_OBJECT;
return false;
}
/* decode the some of the request */
len = bacapp_decode_application_data(
wp_data->application_data,
wp_data->application_data_len,
&value);
/* FIXME: len < application_data_len: more data? */
/* FIXME: len == 0: unable to decode? */
switch (wp_data->object_property) {
case PROP_OBJECT_IDENTIFIER:
if (value.tag == BACNET_APPLICATION_TAG_OBJECT_ID) {
if ((value.type.Object_Id.type == OBJECT_DEVICE) &&
(Device_Set_Object_Instance_Number(value.type.
Object_Id.instance))) {
/* we could send an I-Am broadcast to let the world know */
status = true;
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
}
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_INVALID_DATA_TYPE;
}
break;
case PROP_MAX_INFO_FRAMES:
if (value.tag == BACNET_APPLICATION_TAG_UNSIGNED_INT) {
if (value.type.Unsigned_Int <= 255) {
dlmstp_set_max_info_frames(value.type.Unsigned_Int);
status = true;
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
}
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_INVALID_DATA_TYPE;
}
break;
case PROP_MAX_MASTER:
if (value.tag == BACNET_APPLICATION_TAG_UNSIGNED_INT) {
if ((value.type.Unsigned_Int > 0) &&
(value.type.Unsigned_Int <= 127)) {
dlmstp_set_max_master(value.type.Unsigned_Int);
status = true;
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
}
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_INVALID_DATA_TYPE;
}
break;
case PROP_OBJECT_NAME:
if (value.tag == BACNET_APPLICATION_TAG_CHARACTER_STRING) {
uint8_t encoding;
size_t len;
encoding =
characterstring_encoding(&value.type.Character_String);
len = characterstring_length(&value.type.Character_String);
if (encoding == CHARACTER_ANSI_X34) {
if (len <= 20) {
/* FIXME: set the name */
/* Display_Set_Name(
characterstring_value(&value.type.Character_String)); */
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_NO_SPACE_TO_WRITE_PROPERTY;
}
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_CHARACTER_SET_NOT_SUPPORTED;
}
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_INVALID_DATA_TYPE;
}
break;
case 9600:
if (value.tag == BACNET_APPLICATION_TAG_UNSIGNED_INT) {
if (value.type.Unsigned_Int > 115200) {
RS485_Set_Baud_Rate(value.type.Unsigned_Int);
status = true;
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
}
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_INVALID_DATA_TYPE;
}
break;
default:
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_WRITE_ACCESS_DENIED;
break;
}
return status;
}
bacnet-stack/ports/pic18f6720/dlmstp.c
+370
View File
@@ -0,0 +1,370 @@
/**************************************************************************
*
* Copyright (C) 2006 Steve Karg <skarg@users.sourceforge.net>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*********************************************************************/
#include <stdbool.h>
#include <stdint.h>
#include <stddef.h>
#include <string.h>
#if PRINT_ENABLED
#include <stdio.h>
#endif
#include "bacdef.h"
#include "mstp.h"
#include "dlmstp.h"
#include "rs485.h"
#include "npdu.h"
// Number of MS/TP Packets Rx/Tx
uint16_t MSTP_Packets = 0;
/* receive buffer */
#pragma udata MSTP_RxData
static DLMSTP_PACKET Receive_Buffer;
/* temp buffer for NPDU insertion */
/* local MS/TP port data - shared with RS-485 */
#pragma udata MSTP_PortData
volatile struct mstp_port_struct_t MSTP_Port;
#pragma udata
#define INCREMENT_AND_LIMIT_UINT16(x) {if (x < 0xFFFF) x++;}
// This defines the number of edit fields for this module
#define MAX_EDIT_FIELD 1
static uint8_t EditField = 0;
/* *************************************************************************
DESCRIPTION: This function handles incrementing or decrementing our
EditField
RETURN: none
ALGORITHM: none
NOTES: Pass a #>0 to increment #<0 to decrement
*************************************************************************** */
void dlmstp_SetEditField(
signed char state) /* direction our editfield is moving */
{
if (state > 0)
{
if (++EditField > MAX_EDIT_FIELD)
EditField = 0;
}
else if (state < 0)
{
if (EditField)
EditField--;
else
EditField = MAX_EDIT_FIELD;
}
else
EditField = 0;
}
/* *************************************************************************
DESCRIPTION: Gets the current edit field for this module
RETURN: the current edit field
ALGORITHM: none
NOTES: none
*************************************************************************** */
uint8_t dlmstp_GetEditField(void)
{
return (EditField);
}
void dlmstp_millisecond_timer(void)
{
INCREMENT_AND_LIMIT_UINT16(MSTP_Port.SilenceTimer);
}
void dlmstp_reinit(void)
{
RS485_Reinit();
dlmstp_set_my_address(DEFAULT_MAC_ADDRESS);
dlmstp_set_max_info_frames(DEFAULT_MAX_INFO_FRAMES);
dlmstp_set_max_master(DEFAULT_MAX_MASTER);
}
void dlmstp_init(void)
{
uint8_t data;
/* initialize buffer */
Receive_Buffer.ready = false;
Receive_Buffer.pdu_len = 0;
/* initialize hardware */
RS485_Initialize();
MSTP_Port.InputBuffer = &Receive_Buffer.pdu[0];
MSTP_Init(&MSTP_Port);
/* FIXME: implement your data storage */
data = 64; /* I2C_Read_Byte(
EEPROM_DEVICE_ADDRESS,
EEPROM_MSTP_MAC_ADDR); */
if (data <= 127)
MSTP_Port.This_Station = data;
else
dlmstp_set_my_address(DEFAULT_MAC_ADDRESS);
/* FIXME: implement your data storage */
data = 127; /* I2C_Read_Byte(
EEPROM_DEVICE_ADDRESS,
EEPROM_MSTP_MAX_MASTER_ADDR); */
if ((data <= 127) && (data >= MSTP_Port.This_Station))
MSTP_Port.Nmax_master = data;
else
dlmstp_set_max_master(DEFAULT_MAX_MASTER);
/* FIXME: implement your data storage */
data = 1;
/* I2C_Read_Byte(
EEPROM_DEVICE_ADDRESS,
EEPROM_MSTP_MAX_INFO_FRAMES_ADDR); */
if (data >= 1)
MSTP_Port.Nmax_info_frames = data;
else
dlmstp_set_max_info_frames(DEFAULT_MAX_INFO_FRAMES);
}
void dlmstp_cleanup(void)
{
/* nothing to do for static buffers */
}
/* returns number of bytes sent on success, zero on failure */
int dlmstp_send_pdu(BACNET_ADDRESS * dest, /* destination address */
BACNET_NPDU_DATA * npdu_data, /* network information */
uint8_t * pdu, /* any data to be sent - may be null */
unsigned pdu_len)
{ /* number of bytes of data */
int bytes_sent = 0;
unsigned npdu_len = 0;
uint8_t frame_type = 0;
uint8_t destination = 0; /* destination address */
BACNET_ADDRESS src;
unsigned i = 0; /* loop counter */
if (MSTP_Port.TxReady == false) {
if (npdu_data->data_expecting_reply)
MSTP_Port.TxFrameType = FRAME_TYPE_BACNET_DATA_EXPECTING_REPLY;
else
MSTP_Port.TxFrameType =
FRAME_TYPE_BACNET_DATA_NOT_EXPECTING_REPLY;
/* load destination MAC address */
if (dest && dest->mac_len == 1) {
destination = dest->mac[0];
} else {
return -2;
}
dlmstp_get_my_address(&src);
if ((8 /* header len */ + pdu_len) > MAX_MPDU) {
return -4;
}
bytes_sent = MSTP_Create_Frame(
(uint8_t *) & MSTP_Port.TxBuffer[0],
sizeof(MSTP_Port.TxBuffer),
MSTP_Port.TxFrameType,
destination,
MSTP_Port.This_Station, pdu, pdu_len);
MSTP_Port.TxLength = bytes_sent;
MSTP_Port.TxReady = true;
MSTP_Packets++;
}
return bytes_sent;
}
void dlmstp_task(void)
{
uint8_t bytes_remaining;
bool received_frame;
/* only do receive state machine while we don't have a frame */
if ((MSTP_Port.ReceivedValidFrame == false) &&
(MSTP_Port.ReceivedInvalidFrame == false))
{
do {
bytes_remaining = RS485_Check_UART_Data(&MSTP_Port);
MSTP_Receive_Frame_FSM(&MSTP_Port);
received_frame = MSTP_Port.ReceivedValidFrame ||
MSTP_Port.ReceivedInvalidFrame;
if (received_frame)
break;
} while (bytes_remaining);
}
/* only do master state machine while rx is idle */
if (MSTP_Port.receive_state == MSTP_RECEIVE_STATE_IDLE) {
while (MSTP_Master_Node_FSM(&MSTP_Port)) {};
//MSTP_Master_Node_FSM(&MSTP_Port);
}
/* see if there is a packet available, and a place
to put the reply (if necessary) and process it */
if (Receive_Buffer.ready && !MSTP_Port.TxReady) {
if (Receive_Buffer.pdu_len) {
MSTP_Packets++;
npdu_handler(
&Receive_Buffer.address,
&Receive_Buffer.pdu[0],
Receive_Buffer.pdu_len);
}
Receive_Buffer.ready = false;
}
return;
}
void dlmstp_fill_bacnet_address(BACNET_ADDRESS * src, uint8_t mstp_address)
{
int i = 0;
if (mstp_address == MSTP_BROADCAST_ADDRESS) {
/* mac_len = 0 if broadcast address */
src->mac_len = 0;
src->mac[0] = 0;
} else {
src->mac_len = 1;
src->mac[0] = mstp_address;
}
/* fill with 0's starting with index 1; index 0 filled above */
for (i = 1; i < MAX_MAC_LEN; i++) {
src->mac[i] = 0;
}
src->net = 0;
src->len = 0;
for (i = 0; i < MAX_MAC_LEN; i++) {
src->adr[i] = 0;
}
}
/* for the MS/TP state machine to use for putting received data */
uint16_t dlmstp_put_receive(
uint8_t src, /* source MS/TP address */
uint8_t * pdu, /* PDU data */
uint16_t pdu_len) /* amount of PDU data */
{
/* PDU is already in the Receive_Buffer */
dlmstp_fill_bacnet_address(&Receive_Buffer.address, src);
Receive_Buffer.pdu_len = pdu_len;
Receive_Buffer.ready = true;
}
void dlmstp_set_my_address(uint8_t mac_address)
{
/* Master Nodes can only have address 0-127 */
if (mac_address <= 127) {
MSTP_Port.This_Station = mac_address;
/* FIXME: implement your data storage */
/* I2C_Write_Byte(
EEPROM_DEVICE_ADDRESS,
mac_address,
EEPROM_MSTP_MAC_ADDR); */
if (mac_address > MSTP_Port.Nmax_master)
dlmstp_set_max_master(mac_address);
}
return;
}
uint8_t dlmstp_my_address(void)
{
return MSTP_Port.This_Station;
}
/* This parameter represents the value of the Max_Info_Frames property of */
/* the node's Device object. The value of Max_Info_Frames specifies the */
/* maximum number of information frames the node may send before it must */
/* pass the token. Max_Info_Frames may have different values on different */
/* nodes. This may be used to allocate more or less of the available link */
/* bandwidth to particular nodes. If Max_Info_Frames is not writable in a */
/* node, its value shall be 1. */
void dlmstp_set_max_info_frames(uint8_t max_info_frames)
{
if (max_info_frames >= 1) {
MSTP_Port.Nmax_info_frames = max_info_frames;
/* FIXME: implement your data storage */
/* I2C_Write_Byte(
EEPROM_DEVICE_ADDRESS,
(uint8_t)max_info_frames,
EEPROM_MSTP_MAX_INFO_FRAMES_ADDR); */
}
return;
}
unsigned dlmstp_max_info_frames(void)
{
return MSTP_Port.Nmax_info_frames;
}
/* This parameter represents the value of the Max_Master property of the */
/* node's Device object. The value of Max_Master specifies the highest */
/* allowable address for master nodes. The value of Max_Master shall be */
/* less than or equal to 127. If Max_Master is not writable in a node, */
/* its value shall be 127. */
void dlmstp_set_max_master(uint8_t max_master)
{
if (max_master <= 127) {
if (MSTP_Port.This_Station <= max_master) {
MSTP_Port.Nmax_master = max_master;
/* FIXME: implement your data storage */
/* I2C_Write_Byte(
EEPROM_DEVICE_ADDRESS,
max_master,
EEPROM_MSTP_MAX_MASTER_ADDR); */
}
}
return;
}
uint8_t dlmstp_max_master(void)
{
return MSTP_Port.Nmax_master;
}
void dlmstp_get_my_address(BACNET_ADDRESS * my_address)
{
int i = 0; /* counter */
my_address->mac_len = 1;
my_address->mac[0] = MSTP_Port.This_Station;
my_address->net = 0; /* local only, no routing */
my_address->len = 0;
for (i = 0; i < MAX_MAC_LEN; i++) {
my_address->adr[i] = 0;
}
return;
}
void dlmstp_get_broadcast_address(BACNET_ADDRESS * dest)
{ /* destination address */
int i = 0; /* counter */
if (dest) {
dest->mac_len = 1;
dest->mac[0] = MSTP_BROADCAST_ADDRESS;
dest->net = BACNET_BROADCAST_NETWORK;
dest->len = 0; /* len=0 denotes broadcast address */
for (i = 0; i < MAX_MAC_LEN; i++) {
dest->adr[i] = 0;
}
}
return;
}
bacnet-stack/ports/pic18f6720/dlmstp.h
+110
View File
@@ -0,0 +1,110 @@
/*####COPYRIGHTBEGIN####
-------------------------------------------
Copyright (C) 2005 Steve Karg
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to:
The Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307
USA.
As a special exception, if other files instantiate templates or
use macros or inline functions from this file, or you compile
this file and link it with other works to produce a work based
on this file, this file does not by itself cause the resulting
work to be covered by the GNU General Public License. However
the source code for this file must still be made available in
accordance with section (3) of the GNU General Public License.
This exception does not invalidate any other reasons why a work
based on this file might be covered by the GNU General Public
License.
-------------------------------------------
####COPYRIGHTEND####*/
#ifndef DLMSTP_H
#define DLMSTP_H
#include <stdbool.h>
#include <stdint.h>
#include <stddef.h>
#include "bacdef.h"
#include "npdu.h"
/* defines specific to MS/TP */
#define MAX_HEADER (2+1+1+1+2+1+2+1)
#define MAX_MPDU (MAX_HEADER+MAX_PDU)
typedef struct dlmstp_packet {
bool ready; /* true if ready to be sent or received */
BACNET_ADDRESS address; /* source address */
uint8_t frame_type; /* type of message */
unsigned pdu_len; /* packet length */
uint8_t pdu[MAX_MPDU]; /* packet */
} DLMSTP_PACKET;
/* number of MS/TP tx/rx packets */
extern uint16_t MSTP_Packets;
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
void dlmstp_reinit(void);
void dlmstp_init(void);
void dlmstp_cleanup(void);
void dlmstp_millisecond_timer(void);
void dlmstp_task(void);
/* returns number of bytes sent on success, negative on failure */
int dlmstp_send_pdu(BACNET_ADDRESS * dest, /* destination address */
BACNET_NPDU_DATA * npdu_data, /* network information */
uint8_t * pdu, /* any data to be sent - may be null */
unsigned pdu_len); /* number of bytes of data */
/* This parameter represents the value of the Max_Info_Frames property of */
/* the node's Device object. The value of Max_Info_Frames specifies the */
/* maximum number of information frames the node may send before it must */
/* pass the token. Max_Info_Frames may have different values on different */
/* nodes. This may be used to allocate more or less of the available link */
/* bandwidth to particular nodes. If Max_Info_Frames is not writable in a */
/* node, its value shall be 1. */
void dlmstp_set_max_info_frames(uint8_t max_info_frames);
unsigned dlmstp_max_info_frames(void);
/* This parameter represents the value of the Max_Master property of the */
/* node's Device object. The value of Max_Master specifies the highest */
/* allowable address for master nodes. The value of Max_Master shall be */
/* less than or equal to 127. If Max_Master is not writable in a node, */
/* its value shall be 127. */
void dlmstp_set_max_master(uint8_t max_master);
uint8_t dlmstp_max_master(void);
/* MAC address for MS/TP */
void dlmstp_set_my_address(uint8_t my_address);
uint8_t dlmstp_my_address(void);
/* BACnet address used in datalink */
void dlmstp_get_my_address(BACNET_ADDRESS * my_address);
void dlmstp_get_broadcast_address(BACNET_ADDRESS * dest); /* destination address */
/* MS/TP state machine functions */
uint16_t dlmstp_put_receive(uint8_t src, /* source MS/TP address */
uint8_t * pdu, /* PDU data */
uint16_t pdu_len);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif
bacnet-stack/ports/pic18f6720/hardware.h
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/**************************************************************************
*
* Copyright (C) 2007 Steve Karg <skarg@users.sourceforge.net>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*********************************************************************/
#ifndef HARDWARE_H
#define HARDWARE_H
#include <p18F6720.h>
#include <stdint.h>
#include <stdbool.h>
/* PORTA.0 Photocell Input PORTA.1 LED Row6 PORTA.2 LED Row5 PORTA.3 LED
* Row4 PORTA.4 Square Wave input from RTC PORTA.5 LCD RW PORTB.0 Zero
* Cross PORTB.1 USB RXF# PORTB.2 USB TXE# PORTB.3 Keypad Row Enable
* (74HC373 Output Control) PORTB.4 Keypad Row Gate (74HC373 Gate)
* PORTB.5 Switch Input Latch & Keypad Column Gate (74HC373 Gate) PORTB.6
* ICD connection PORTB.7 ICD connection PORTC.0 Pilot Latch PORTC.1
* Pilot Output Enable (low) PORTC.2 Piezo PORTC.3 I2C clock PORTC.4 I2C
* data PORTC.5 RS232 enable (low) PORTC.6 RS232 Tx PORTC.7 RS232 Rx
* PORTD.0 Data bus PORTD.1 Data bus PORTD.2 Data bus PORTD.3 Data bus
* PORTD.4 Data bus PORTD.5 Data bus PORTD.6 Data bus PORTD.7 Data bus
* PORTE.0 USB RD PORTE.1 USB WR PORTE.2 LCD RS PORTE.3 485 transmit
* enable PORTE.4 Relay data latch PORTE.5 Switch Input Clock PORTE.6
* Switch Input High/Low PORTE.7 Switch Input Data PORTF.0 LED Row2
* PORTF.1 LED Row1 PORTF.2 LED Col5 PORTF.3 LED Col4 PORTF.4 LED Col3
* PORTF.5 LED Col2 PORTF.6 LED Col1 PORTF.7 LED Col0 PORTG.0 485 receive
* enable PORTG.1 485 Tx PORTG.2 485 Rx PORTG.3 LCD E PORTG.4 LED Row0 */
#define LCD_BUSY PORTDbits.RD7
#define LCD_E PORTGbits.RG3
#define LCD_RW PORTAbits.RA5
#define LCD_RS PORTEbits.RE2
#define LCD_DATA PORTD
#define LCD_TRIS TRISD
#define PILOT_LATCH PORTCbits.RC0
#define PILOT_ENABLE PORTCbits.RC1
#define PILOT_PORT PORTD
#define PILOT_PORT_TRIS TRISD
#define PIEZO PORTCbits.RC2
#define PIEZO_ON() TRISCbits.TRISC2 = 0
#define PIEZO_OFF() TRISCbits.TRISC2 = 1
#define RS232_ENABLE PORTCbits.RC5
#define RS485_TX_ENABLE PORTEbits.RE3
#define RS485_RX_DISABLE PORTGbits.RG0
#define SWITCH_LOAD PORTBbits.RB5
#define SWITCH_CLK PORTEbits.RE5
#define SWITCH_COM PORTEbits.RE6
#define SWITCH_DATA PORTEbits.RE7
#define LEDPORT PORTF
#define LEDTRIS TRISF
#define LED_ROW1 PORTGbits.RG4
#define LED_ROW2 PORTFbits.RF1
#define LED_ROW3 PORTFbits.RF0
#define LED_ROW4 PORTAbits.RA3
#define LED_ROW5 PORTAbits.RA2
#define LED_ROW6 PORTAbits.RA1
#define RELAY_PORT PORTD
#define RELAY_PORT_TRIS TRISD
#define RELAY_LATCH PORTEbits.RE4
#define KEYPAD_DATA PORTD
#define KEYPAD_TRIS TRISD
#define KEYPAD_COL_LATCH PORTBbits.RB5
#define KEYPAD_ROW_ENABLE PORTBbits.RB3
#define KEYPAD_ROW_LATCH PORTBbits.RB4
#define KEYPAD_ROW1 0 b00000001
#define KEYPAD_ROW2 0 b00000010
#define KEYPAD_ROW3 0 b00000100
#define KEYPAD_ROW4 0 b00001000
#define KEYPAD_ROW5 0 b00010000
#define KEYPAD_ROW6 0 b00100000
#define USB_RD_EMPTY PORTBbits.RB1
#define USB_WR_FULL PORTBbits.RB2
#define USB_RD PORTEbits.RE0
#define USB_WR PORTEbits.RE1
#define USB_PORT PORTD
#define USB_PORT_TRIS TRISD
#define ZERO_CROSS PORTBbits.RB0
#define PORT_A_TRIS_MASK 0x11 /* 0b00010001 */
#define PORT_B_TRIS_MASK 0xC7 /* 0b11000111 */
#define PORT_C_TRIS_MASK 0x9C /* 0b10011100 */
#define PORT_D_TRIS_MASK 0xFF /* 0b11111111 */
#define PORT_E_TRIS_MASK 0x88 /* 0b10001000 */
#define PORT_F_TRIS_MASK 0x00 /* 0b00000000 */
#define PORT_G_TRIS_MASK 0x04 /* 0b00000100 */
#define TURN_OFF_COMPARATORS() CMCON = 0x07
#define SHORT_BEEP 50
#define LONG_BEEP 250
#define CLICK() Hardware_Sound_Piezo(SHORT_BEEP);
#define BEEP() Hardware_Sound_Piezo(LONG_BEEP);
typedef union
{
struct
{
uint8_t:1;
uint8_t:1;
uint8_t Thursday : 1;
uint8_t Wednesday : 1;
uint8_t Tuesday : 1;
uint8_t Monday : 1;
uint8_t Program : 1;
uint8_t Run : 1;
uint8_t:1;
uint8_t:1;
uint8_t Input1 : 1;
uint8_t Input2 : 1;
uint8_t Input3 : 1;
uint8_t Input4 : 1;
uint8_t Input5 : 1;
uint8_t Input6 : 1;
uint8_t:1;
uint8_t:1;
uint8_t:1;
uint8_t Input7 : 1;
uint8_t:1;
uint8_t:1;
uint8_t Input8 : 1;
uint8_t Photocell : 1;
uint8_t:1;
uint8_t:1;
uint8_t:1;
uint8_t:1;
uint8_t:1;
uint8_t:1;
uint8_t Remote : 1;
uint8_t Relay8 : 1;
uint8_t:1;
uint8_t:1;
uint8_t:1;
uint8_t Relay7 : 1;
uint8_t Relay6 : 1;
uint8_t Relay5 : 1;
uint8_t Relay4 : 1;
uint8_t Relay3 : 1;
uint8_t:1;
uint8_t:1;
uint8_t Relay2 : 1;
uint8_t Relay1 : 1;
uint8_t Holiday : 1;
uint8_t Sunday : 1;
uint8_t Saturday : 1;
uint8_t Friday : 1;
};
struct
{
uint8_t row1;
uint8_t row2;
uint8_t row3;
uint8_t row4;
uint8_t row5;
uint8_t row6;
};
} LED_REGS;
union SWITCH_REGS
{
struct
{
uint8_t All_On : 1;
uint8_t All_Off : 1;
uint8_t Addr : 4;
uint8_t Pilot_Fault : 1;
uint8_t Master : 1;
};
uint8_t Sw_Byte;
};
enum INT_STATE { INT_DISABLED, INT_ENABLED, INT_RESTORE };
#define RESTART_WDT() { _asm CLRWDT _endasm }
/* *************************************************************************
define ENABLE_GLOBAL_INT() INTCONbits.GIE = 1 £
#define DISABLE_GLOBAL_INT() INTCONbits.GIE = 0 £
#define ENABLE_PERIPHERAL_INT() INTCONbits.PEIE = 1 £
#define DISABLE_PERIPHERAL_INT() INTCONbits.PEIE = 0
*************************************************************************** */
#define ENABLE_HIGH_INT() INTCONbits.GIE = 1
#define DISABLE_HIGH_INT() INTCONbits.GIE = 0
#define ENABLE_LOW_INT() INTCONbits.PEIE = 1
#define DISABLE_LOW_INT() INTCONbits.PEIE = 0
#define ENABLE_TIMER0_INT() INTCONbits.TMR0IE = 1
#define DISABLE_TIMER0_INT() INTCONbits.TMR0IE = 0
#define ENABLE_TIMER2_INT() PIE1bits.TMR2IE = 1
#define DISABLE_TIMER2_INT() PIE1bits.TMR2IE = 0
#define ENABLE_TIMER4_INT() PIE3bits.TMR4IE = 1
#define DISABLE_TIMER4_INT() PIE3bits.TMR4IE = 0
#define ENABLE_CCP2_INT() PIE2bits.CCP2IE = 1
#define DISABLE_CCP2_INT() PIE2bits.CCP2IE = 0
#define ENABLE_CCP1_INT() PIE1bits.CCP1IE = 1
#define DISABLE_CCP1_INT() PIE1bits.CCP1IE = 0
#define ENABLE_ABUS_INT() PIE1bits.SSPIE = 1
#define DISABLE_ABUS_INT() PIE1bits.SSPIE = 0
#define CLEAR_ABUS_FLAG() PIR1bits.SSPIF = 0
#define SETUP_CCP1(x) CCP1CON = x
#define SETUP_CCP2(x) CCP2CON = x
#define DISABLE_RX_INT() PIE1bits.RCIE = 0
#define ENABLE_RX_INT() PIE1bits.RCIE = 1
#define DISABLE_TX_INT() PIE1bits.TXIE = 0
#define ENABLE_TX_INT() PIE1bits.TXIE = 1
#if CLOCKSPEED == 20
#define DELAY_US(x) { _asm \
MOVLW x \
LOOP: \
NOP \
NOP \
DECFSZ WREG, 1, 0 \
BRA LOOP \
_endasm }
#endif
/* Global Vars */
extern volatile LED_REGS LEDS;
extern volatile LED_REGS Blink;
extern uint8_t Piezo_Timer;
extern volatile bool DataPortLocked;
#endif /* HARDWARE_H */
bacnet-stack/ports/pic18f6720/isr.c
+210
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/**************************************************************************
*
* Copyright (C) 2007 Steve Karg <skarg@users.sourceforge.net>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*********************************************************************/
#include <p18F6720.h>
#include "stdint.h"
#include "hardware.h"
#include "rs485.h"
#include "dlmstp.h"
/* from main.c */
extern volatile uint8_t System_Seconds;
extern volatile uint8_t Milliseconds;
void InterruptHandlerHigh(void);
void InterruptHandlerLow(void);
void Interrupt_Timer2(void);
void Interrupt_Timer3(void);
void Interrupt_Timer4(void);
void Interrupt_USART_Rx(void);
void Interrupt_USART_Tx(void);
void Interrupt_CCP2(void);
void INT0_Interrupt(void);
#pragma code InterruptVectorHigh = 0x308
void InterruptVectorHigh (void)
{
_asm goto InterruptHandlerHigh /* jump to interrupt routine */
_endasm
}
#pragma code
#pragma code InterruptVectorLow = 0x318
void InterruptVectorLow (void)
{
_asm goto InterruptHandlerLow /* jump to interrupt routine */
_endasm
}
#pragma code
#pragma interrupt InterruptHandlerHigh
void InterruptHandlerHigh (void)
{
#if 0
/* check for USART Rx int */
if ((PIR1bits.RCIF) && (PIE1bits.RCIE))
{
if ((RCSTA1bits.FERR) || (RCSTA1bits.OERR))
{
Comstat.Rx_Bufferoverrun = TRUE;
PIE1bits.RC1IE = 0; /* Disable Interrupt on receipt */
}
else if (Comstat.Rx_Bytes++ < RX_BUFFER_SIZE - 1)
{
Rx_Buffer[Comstat.RxHead++] = RCREG1;
/* Stick a Null on the end to let us use str functions on our
* buffer */
Rx_Buffer[Comstat.RxHead] = 0;
}
else
{
Comstat.Rx_Bufferoverrun = TRUE;
PIE1bits.RC1IE = 0; /* Disable Interrupt on receipt */
}
}
#endif
/* check for timer0 int */
if ((INTCONbits.TMR0IF) && (INTCONbits.TMR0IE))
{
INTCONbits.TMR0IF = 0;
System_Seconds++;
}
}
#pragma interruptlow InterruptHandlerLow save = PROD, section(".tmpdata"), TABLAT, TBLPTR, section \
("MATH_DATA")
void InterruptHandlerLow(void)
{
/* check for timer2 int */
if ((PIR1bits.TMR2IF) && (PIE1bits.TMR2IE))
{
PIR1bits.TMR2IF = 0;
Interrupt_Timer2();
}
/* check for timer3 int */
if ((PIR2bits.TMR3IF) && (PIE2bits.TMR3IE))
{
PIR2bits.TMR3IF = 0;
Interrupt_Timer3();
}
/* check for timer4 int */
if ((PIR3bits.TMR4IF) && (PIE3bits.TMR4IE))
{
PIR3bits.TMR4IF = 0;
dlmstp_millisecond_timer();
Interrupt_Timer4();
}
/* check for compare int */
if ((PIR2bits.CCP2IF) && (PIE2bits.CCP2IE))
{
PIR2bits.CCP2IF = 0;
Interrupt_CCP2();
}
/* check for USART Tx int */
if ((PIR3bits.TX2IF) && (PIE3bits.TX2IE))
{
RS485_Interrupt_Tx();
}
/* check for USART Rx int */
if ((PIR3bits.RC2IF) && (PIE3bits.RC2IE))
{
RS485_Interrupt_Rx();
}
/* Unused Interrupts
//check for timer1 int
if ((PIR1bits.TMR1IF) && (PIE1bits.TMR1IE))
{
PIR1bits.TMR1IF = 0;
Interrupt_Timer1();
}
//check for compare int
if ((PIR1bits.CCP1IF) && (PIE1bits.CCP1IE))
{
PIR1bits.CCP1IF = 0;
Interrupt_CCP1();
}
//check for compare int
if ((PIR3bits.CCP3IF) && (PIE3bits.CCP3IE))
{
PIR3bits.CCP3IF = 0;
Interrupt_CCP3();
}
//check for compare int
if ((PIR3bits.CCP4IF) && (PIE3bits.CCP4IE))
{
PIR3bits.CCP4IF = 0;
Interrupt_CCP4();
}
//check for AD int
if ((PIR1bits.ADIF) && (PIE1bits.ADIE))
{
PIR1bits.ADIF = 0;
Interrupt_ADC();
}
//check for MSSP int
if ((PIR1bits.SSPIF) && (PIE1bits.SSPIE))
{
PIR1bits.SSPIF = 0;
Interrupt_SSP();
}
*/
}
void Interrupt_Timer2(void)
{
}
void Interrupt_Timer3(void)
{
}
/* Timer4 is set to go off every 1ms. This is our system tick */
void Interrupt_Timer4(void)
{
/* Milisecond is our system tick */
if (Milliseconds < 0xFF)
++Milliseconds;
}
void Interrupt_CCP2(void)
{
}
bacnet-stack/ports/pic18f6720/main.c
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/**************************************************************************
*
* Copyright (C) 2007 Steve Karg <skarg@users.sourceforge.net>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*********************************************************************/
#include <stdbool.h>
#include <stdint.h>
#include <string.h> /* for memmove */
#include <p18F6720.h>
#include <stdlib.h>
#include <string.h>
#include "stdint.h"
#include "hardware.h"
/* BACnet */
#include "apdu.h"
#include "datalink.h"
#include "dcc.h"
#include "handlers.h"
#include "iam.h"
#include "txbuf.h"
volatile uint8_t Milliseconds = 0;
volatile uint8_t System_Seconds = 0;
volatile uint8_t Zero_Cross_Timeout = 0;
static void BACnet_Service_Handlers_Init(void)
{
/* we need to handle who-is to support dynamic device binding */
apdu_set_unconfirmed_handler(SERVICE_UNCONFIRMED_WHO_IS,
handler_who_is);
/* Set the handlers for any confirmed services that we support. */
/* We must implement read property - it's required! */
apdu_set_confirmed_handler(SERVICE_CONFIRMED_READ_PROPERTY,
handler_read_property);
//apdu_set_confirmed_handler(SERVICE_CONFIRMED_WRITE_PROPERTY,
// handler_write_property);
apdu_set_confirmed_handler(SERVICE_CONFIRMED_REINITIALIZE_DEVICE,
handler_reinitialize_device);
//apdu_set_unconfirmed_handler
// (SERVICE_UNCONFIRMED_UTC_TIME_SYNCHRONIZATION,
// handler_timesync_utc);
//apdu_set_unconfirmed_handler(SERVICE_UNCONFIRMED_TIME_SYNCHRONIZATION,
// handler_timesync);
/* handle communication so we can shutup when asked */
apdu_set_confirmed_handler
(SERVICE_CONFIRMED_DEVICE_COMMUNICATION_CONTROL,
handler_device_communication_control);
}
void Reinitialize(void)
{
uint8_t i;
char name = 0;
_asm reset _endasm
}
void Global_Int(
enum INT_STATE state) /* FIX ME: add comment */
{
static uint8_t intstate = 0;
switch (state)
{
case INT_DISABLED:
intstate >>= 2;
intstate |= (INTCON & 0xC0);
break;
case INT_ENABLED:
INTCONbits.GIE = 1;
INTCONbits.PEIE = 1;
intstate <<= 2;
break;
case INT_RESTORE:
INTCON |= (intstate & 0xC0);
intstate <<= 2;
break;
default:
break;
}
}
void Initialize_Variables(void)
{
/* Check to see if we need to initialize our eeproms */
ENABLE_TIMER4_INT();
/* interrupts must be enabled before we read our inputs */
Global_Int(INT_ENABLED);
BACnet_Service_Handlers_Init();
dlmstp_init();
/* Start our time from now */
Milliseconds = 0;
System_Seconds = 0;
}
void Verify_Ints(void)
{
/* Make sure the Abus data and clock lines are inputs. Also make sure
* that global interrupts are enabled. */
if (!TRISCbits.TRISC3)
TRISCbits.TRISC3 = 1;
if (!TRISCbits.TRISC4)
TRISCbits.TRISC4 = 1;
if (!INTCONbits.GIE)
INTCONbits.GIE = 1;
if (!INTCONbits.PEIE)
INTCONbits.PEIE = 1;
/* if (!INTCONbits.INT0E) £
* INTCONbits.INT0E=1; */
if (!PIE1bits.TMR2IE)
PIE1bits.TMR2IE = 1;
}
void MainTasks(void)
{
/* Handle our millisecond counters */
while (Milliseconds)
{
--Milliseconds;
}
/* Handle our seconds counters */
while (System_Seconds)
{
dcc_timer_seconds(1);
System_Seconds--;
}
}
void main(void)
{
/* Note that before main is called, the SCL line is £
* toggled 256 times to clear any I2C devices that £
* may be holding the data line low £
* Reset POR bit */
RCONbits.NOT_POR = 1;
RCONbits.NOT_RI = 1;
Initialize_Variables();
/* Handle anything that needs to be done on powerup */
/* Greet the BACnet world! */
iam_send(&Handler_Transmit_Buffer[0]);
/* Main loop */
while (TRUE)
{
RESTART_WDT();
Verify_Ints();
dlmstp_task();
MainTasks();
}
}
bacnet-stack/ports/pic18f6720/mstp.c
+1702
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bacnet-stack/ports/pic18f6720/mstp.h
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/*####COPYRIGHTBEGIN####
-------------------------------------------
Copyright (C) 2004 Steve Karg
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to:
The Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307
USA.
As a special exception, if other files instantiate templates or
use macros or inline functions from this file, or you compile
this file and link it with other works to produce a work based
on this file, this file does not by itself cause the resulting
work to be covered by the GNU General Public License. However
the source code for this file must still be made available in
accordance with section (3) of the GNU General Public License.
This exception does not invalidate any other reasons why a work
based on this file might be covered by the GNU General Public
License.
-------------------------------------------
####COPYRIGHTEND####*/
#ifndef MSTP_H
#define MSTP_H
#include <stddef.h>
#include <stdint.h>
#include <stdbool.h>
#include "bacdef.h"
#include "dlmstp.h"
/* The value 255 is used to denote broadcast when used as a */
/* destination address but is not allowed as a value for a station. */
/* Station addresses for master nodes can be 0-127. */
/* Station addresses for slave nodes can be 127-254. */
#define MSTP_BROADCAST_ADDRESS 255
/* MS/TP Frame Type */
/* Frame Types 8 through 127 are reserved by ASHRAE. */
#define FRAME_TYPE_TOKEN 0
#define FRAME_TYPE_POLL_FOR_MASTER 1
#define FRAME_TYPE_REPLY_TO_POLL_FOR_MASTER 2
#define FRAME_TYPE_TEST_REQUEST 3
#define FRAME_TYPE_TEST_RESPONSE 4
#define FRAME_TYPE_BACNET_DATA_EXPECTING_REPLY 5
#define FRAME_TYPE_BACNET_DATA_NOT_EXPECTING_REPLY 6
#define FRAME_TYPE_REPLY_POSTPONED 7
/* Frame Types 128 through 255: Proprietary Frames */
/* These frames are available to vendors as proprietary (non-BACnet) frames. */
/* The first two octets of the Data field shall specify the unique vendor */
/* identification code, most significant octet first, for the type of */
/* vendor-proprietary frame to be conveyed. The length of the data portion */
/* of a Proprietary frame shall be in the range of 2 to 501 octets. */
#define FRAME_TYPE_PROPRIETARY_MIN 128
#define FRAME_TYPE_PROPRIETARY_MAX 255
/* The initial CRC16 checksum value */
#define CRC16_INITIAL_VALUE (0xFFFF)
/* receive FSM states */
typedef enum {
MSTP_RECEIVE_STATE_IDLE = 0,
MSTP_RECEIVE_STATE_PREAMBLE = 1,
MSTP_RECEIVE_STATE_HEADER = 2,
MSTP_RECEIVE_STATE_HEADER_CRC = 3,
MSTP_RECEIVE_STATE_DATA = 4
} MSTP_RECEIVE_STATE;
/* master node FSM states */
typedef enum {
MSTP_MASTER_STATE_INITIALIZE = 0,
MSTP_MASTER_STATE_IDLE = 1,
MSTP_MASTER_STATE_USE_TOKEN = 2,
MSTP_MASTER_STATE_WAIT_FOR_REPLY = 3,
MSTP_MASTER_STATE_DONE_WITH_TOKEN = 4,
MSTP_MASTER_STATE_PASS_TOKEN = 5,
MSTP_MASTER_STATE_NO_TOKEN = 6,
MSTP_MASTER_STATE_POLL_FOR_MASTER = 7,
MSTP_MASTER_STATE_ANSWER_DATA_REQUEST = 8
} MSTP_MASTER_STATE;
struct mstp_port_struct_t {
MSTP_RECEIVE_STATE receive_state;
/* When a master node is powered up or reset, */
/* it shall unconditionally enter the INITIALIZE state. */
MSTP_MASTER_STATE master_state;
/* A Boolean flag set to TRUE by the Receive State Machine */
/* if an error is detected during the reception of a frame. */
/* Set to FALSE by the main state machine. */
unsigned ReceiveError:1;
/* There is data in the buffer */
unsigned DataAvailable:1;
unsigned ReceivedInvalidFrame:1;
/* A Boolean flag set to TRUE by the Receive State Machine */
/* if a valid frame is received. */
/* Set to FALSE by the main state machine. */
unsigned ReceivedValidFrame:1;
/* A Boolean flag set to TRUE by the master machine if this node is the */
/* only known master node. */
unsigned SoleMaster:1;
/* stores the latest received data */
uint8_t DataRegister;
/* Used to accumulate the CRC on the data field of a frame. */
uint16_t DataCRC;
/* Used to store the data length of a received frame. */
unsigned DataLength;
/* Used to store the destination address of a received frame. */
uint8_t DestinationAddress;
/* Used to count the number of received octets or errors. */
/* This is used in the detection of link activity. */
/* Compared to Nmin_octets */
uint8_t EventCount;
/* Used to store the frame type of a received frame. */
uint8_t FrameType;
/* The number of frames sent by this node during a single token hold. */
/* When this counter reaches the value Nmax_info_frames, the node must */
/* pass the token. */
unsigned FrameCount;
/* Used to accumulate the CRC on the header of a frame. */
uint8_t HeaderCRC;
/* Used as an index by the Receive State Machine, up to a maximum value of */
/* InputBufferSize. */
unsigned Index;
/* An array of octets, used to store octets as they are received. */
/* InputBuffer is indexed from 0 to InputBufferSize-1. */
/* The maximum size of a frame is 501 octets. */
uint8_t *InputBuffer;
/* "Next Station," the MAC address of the node to which This Station passes */
/* the token. If the Next_Station is unknown, Next_Station shall be equal to */
/* This_Station. */
uint8_t Next_Station;
/* "Poll Station," the MAC address of the node to which This Station last */
/* sent a Poll For Master. This is used during token maintenance. */
uint8_t Poll_Station;
/* A counter of transmission retries used for Token and Poll For Master */
/* transmission. */
unsigned RetryCount;
/* A timer with nominal 5 millisecond resolution used to measure and */
/* generate silence on the medium between octets. It is incremented by a */
/* timer process and is cleared by the Receive State Machine when activity */
/* is detected and by the SendFrame procedure as each octet is transmitted. */
/* Since the timer resolution is limited and the timer is not necessarily */
/* synchronized to other machine events, a timer value of N will actually */
/* denote intervals between N-1 and N */
uint16_t SilenceTimer;
/* A timer used to measure and generate Reply Postponed frames. It is */
/* incremented by a timer process and is cleared by the Master Node State */
/* Machine when a Data Expecting Reply Answer activity is completed. */
/* note: we always send a reply postponed since a message other than
the reply may be in the transmit queue */
// uint16_t ReplyPostponedTimer;
/* Used to store the Source Address of a received frame. */
uint8_t SourceAddress;
/* The number of tokens received by this node. When this counter reaches the */
/* value Npoll, the node polls the address range between TS and NS for */
/* additional master nodes. TokenCount is set to zero at the end of the */
/* polling process. */
unsigned TokenCount;
/* "This Station," the MAC address of this node. TS is generally read from a */
/* hardware DIP switch, or from nonvolatile memory. Valid values for TS are */
/* 0 to 254. The value 255 is used to denote broadcast when used as a */
/* destination address but is not allowed as a value for TS. */
uint8_t This_Station;
/* This parameter represents the value of the Max_Info_Frames property of */
/* the node's Device object. The value of Max_Info_Frames specifies the */
/* maximum number of information frames the node may send before it must */
/* pass the token. Max_Info_Frames may have different values on different */
/* nodes. This may be used to allocate more or less of the available link */
/* bandwidth to particular nodes. If Max_Info_Frames is not writable in a */
/* node, its value shall be 1. */
unsigned Nmax_info_frames;
/* This parameter represents the value of the Max_Master property of the */
/* node's Device object. The value of Max_Master specifies the highest */
/* allowable address for master nodes. The value of Max_Master shall be */
/* less than or equal to 127. If Max_Master is not writable in a node, */
/* its value shall be 127. */
unsigned Nmax_master;
/* An array of octets, used to store PDU octets prior to being transmitted. */
/* This array is only used for APDU messages */
uint8_t TxBuffer[MAX_MPDU];
unsigned TxLength;
bool TxReady; /* true if ready to be sent or received */
uint8_t TxFrameType; /* type of message - needed by MS/TP */
};
#define DEFAULT_MAX_INFO_FRAMES 1
#define DEFAULT_MAX_MASTER 127
#define DEFAULT_MAC_ADDRESS 127
/* The minimum time after the end of the stop bit of the final octet of a */
/* received frame before a node may enable its EIA-485 driver: 40 bit times. */
/* At 9600 baud, 40 bit times would be about 4.166 milliseconds */
/* At 19200 baud, 40 bit times would be about 2.083 milliseconds */
/* At 38400 baud, 40 bit times would be about 1.041 milliseconds */
/* At 57600 baud, 40 bit times would be about 0.694 milliseconds */
/* At 76800 baud, 40 bit times would be about 0.520 milliseconds */
/* At 115200 baud, 40 bit times would be about 0.347 milliseconds */
/* 40 bits is 4 octets including a start and stop bit with each octet */
#define Tturnaround 40
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
void MSTP_Init(volatile struct mstp_port_struct_t *mstp_port);
void MSTP_Receive_Frame_FSM(volatile struct mstp_port_struct_t
*mstp_port);
bool MSTP_Master_Node_FSM(volatile struct mstp_port_struct_t
*mstp_port);
/* returns true if line is active */
bool MSTP_Line_Active(volatile struct mstp_port_struct_t *mstp_port);
unsigned MSTP_Create_Frame(uint8_t * buffer, /* where frame is loaded */
unsigned buffer_len, /* amount of space available */
uint8_t frame_type, /* type of frame to send - see defines */
uint8_t destination, /* destination address */
uint8_t source, /* source address */
uint8_t * data, /* any data to be sent - may be null */
unsigned data_len); /* number of bytes of data (up to 501) */
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif
bacnet-stack/ports/pic18f6720/rs485.c
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/**************************************************************************
*
* Copyright (C) 2005 Steve Karg <skarg@users.sourceforge.net>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*********************************************************************/
/* The module handles sending data out the RS-485 port */
/* and handles receiving data from the RS-485 port. */
/* Customize this file for your specific hardware */
#include <stddef.h>
#include <stdint.h>
#include <stdbool.h>
#include <string.h>
#include "hardware.h"
#include "mstp.h"
#include "rs485.h"
/* public port info */
extern volatile struct mstp_port_struct_t MSTP_Port;
/* the baud rate is adjustable */
uint32_t RS485_Baud_Rate = 9600;
/* the ISR and other use this for status and control */
COMSTAT RS485_Comstat;
//#pragma udata MSTPPortData
/* the buffer for receiving characters */
volatile uint8_t RS485_Rx_Buffer[MAX_MPDU];
/* UART transmission buffer and index */
volatile uint8_t RS485_Tx_Buffer[MAX_MPDU];
/****************************************************************************
* DESCRIPTION: Transmits a frame using the UART
* RETURN: none
* ALGORITHM: none
* NOTES: none
*****************************************************************************/
void RS485_Send_Frame(volatile struct mstp_port_struct_t *mstp_port, /* port specific data */
uint8_t * buffer, /* frame to send (up to 501 bytes of data) */
uint16_t nbytes) /* number of bytes of data (up to 501) */
{
uint16_t i = 0; /* loop counter */
uint8_t turnaround_time;
if (!buffer)
return;
/* bounds check */
if (nbytes >= sizeof(RS485_Tx_Buffer))
return;
/* buffer is full. Wait for ISR to transmit. */
while (RS485_Comstat.Tx_Bytes) {};
/* wait 40 bit times since reception */
if (RS485_Baud_Rate == 9600)
turnaround_time = 4;
else if (RS485_Baud_Rate == 19200)
turnaround_time = 2;
else
turnaround_time = 1;
while (mstp_port->SilenceTimer < turnaround_time) {};
RS485_Comstat.TxHead = 0;
memcpy((void *)&RS485_Tx_Buffer[0], (void *)buffer, nbytes);
//for (i = 0; i < nbytes; i++) {
// /* put the data into the buffer */
// RS485_Tx_Buffer[i] = *buffer;
// buffer++;
//}
RS485_Comstat.Tx_Bytes = nbytes;
/* disable the receiver */
PIE3bits.RC2IE = 0;
RCSTA2bits.CREN = 0;
/* enable the transceiver */
RS485_TX_ENABLE = 1;
RS485_RX_DISABLE = 1;
/* enable the transmitter */
TXSTA2bits.TXEN = 1;
PIE3bits.TX2IE = 1;
/* per MSTP spec, sort of */
mstp_port->SilenceTimer = 0;
return;
}
/****************************************************************************
* DESCRIPTION: Checks for data on the receive UART, and handles errors
* RETURN: none
* ALGORITHM: none
* NOTES: none
*****************************************************************************/
uint8_t RS485_Check_UART_Data(volatile struct mstp_port_struct_t *mstp_port)
{
/* check for data */
if (RS485_Comstat.Rx_Bytes)
{
mstp_port->DataRegister = RS485_Rx_Buffer[RS485_Comstat.RxTail];
if (RS485_Comstat.RxTail >= (sizeof(RS485_Rx_Buffer)-1))
RS485_Comstat.RxTail = 0;
else
RS485_Comstat.RxTail++;
RS485_Comstat.Rx_Bytes--;
/* errors? let the state machine know */
if (RS485_Comstat.Rx_Bufferoverrun)
{
RS485_Comstat.Rx_Bufferoverrun = FALSE;
mstp_port->ReceiveError = TRUE;
}
/* We read a good byte */
else
mstp_port->DataAvailable = TRUE;
}
return RS485_Comstat.Rx_Bytes;
}
/* *************************************************************************
DESCRIPTION: Receives RS485 data stream
RETURN: none
ALGORITHM: none
NOTES: none
*************************************************************************** */
void RS485_Interrupt_Rx(void)
{
char dummy;
if ((RCSTA2bits.FERR) || (RCSTA2bits.OERR))
{
/* Clear the error */
RCSTA2bits.CREN = 0;
RCSTA2bits.CREN = 1;
RS485_Comstat.Rx_Bufferoverrun = TRUE;
dummy = RCREG2;
}
else if (RS485_Comstat.Rx_Bytes < sizeof(RS485_Rx_Buffer))
{
RS485_Rx_Buffer[RS485_Comstat.RxHead] = RCREG2;
if (RS485_Comstat.RxHead >= (sizeof(RS485_Rx_Buffer)-1))
RS485_Comstat.RxHead = 0;
else
RS485_Comstat.RxHead++;
RS485_Comstat.Rx_Bytes++;
}
else
{
RS485_Comstat.Rx_Bufferoverrun = TRUE;
dummy = RCREG2;
(void)dummy;
}
}
/* *************************************************************************
DESCRIPTION: Transmits a byte using the UART out the RS485 port
RETURN: none
ALGORITHM: none
NOTES: none
*************************************************************************** */
void RS485_Interrupt_Tx(void)
{
if (RS485_Comstat.Tx_Bytes)
{
/* Get the data byte */
TXREG2 = RS485_Tx_Buffer[RS485_Comstat.TxHead];
/* point to the next byte */
RS485_Comstat.TxHead++;
/* reduce the buffer size */
RS485_Comstat.Tx_Bytes--;
}
else
{
/* wait for the USART to be empty */
while (!TXSTA2bits.TRMT);
/* disable this interrupt */
PIE3bits.TX2IE = 0;
/* enable the receiver */
RS485_TX_ENABLE = 0;
RS485_RX_DISABLE = 0;
// FIXME: might not be necessary
PIE3bits.RC2IE = 1;
RCSTA2bits.CREN = 1;
}
}
/****************************************************************************
* DESCRIPTION: Returns the baud rate that we are currently running at
* RETURN: none
* ALGORITHM: none
* NOTES: none
*****************************************************************************/
uint32_t RS485_Get_Baud_Rate(void)
{
return RS485_Baud_Rate;
}
/****************************************************************************
* DESCRIPTION: Sets the baud rate for the chip USART
* RETURN: none
* ALGORITHM: none
* NOTES: none
*****************************************************************************/
bool RS485_Set_Baud_Rate(uint32_t baud)
{
bool valid = true;
switch (baud)
{
case 9600:
case 19200:
case 38400:
case 57600:
case 76800:
case 115200:
RS485_Baud_Rate = baud;
break;
default:
valid = false;
break;
}
if (valid) {
/* FIXME: store the baud rate */
/* I2C_Write_Block(
EEPROM_DEVICE_ADDRESS,
(char *)&RS485_Baud_Rate,
sizeof(RS485_Baud_Rate),
EEPROM_MSTP_BAUD_RATE_ADDR); */
}
return valid;
}
/****************************************************************************
* DESCRIPTION: Initializes the RS485 hardware and variables, and starts in
* receive mode.
* RETURN: none
* ALGORITHM: none
* NOTES: none
*****************************************************************************/
void RS485_Initialize_Port(void)
{
/* Reset USART registers to POR state */
TXSTA2 = 0;
RCSTA2 = 0;
/* configure USART for receiving */
/* since the TX will handle setting up for transmit */
RCSTA2bits.CREN = 1;
/* Interrupt on receipt */
PIE3bits.RC2IE = 1;
/* enable the transmitter, disable its interrupt */
TXSTA2bits.TXEN = 1;
PIE3bits.TX2IE = 0;
/* setup USART Baud Rate Generator */
/* see BAUD RATES FOR ASYNCHRONOUS MODE in Data Book */
/* Fosc=20MHz
BRGH=1 BRGH=0
Rate SPBRG Rate SPBRG
------- ----- ------- -----
9615 129 9469 32
19230 64 19530 15
37878 32 78130 3
56818 21 104200 2
113630 10 312500 0
250000 4
625000 1
1250000 0
*/
switch (RS485_Baud_Rate)
{
case 19200:
SPBRG2 = 64;
TXSTA2bits.BRGH = 1;
break;
case 38400:
SPBRG2 = 32;
TXSTA2bits.BRGH = 1;
break;
case 57600:
SPBRG2 = 21;
TXSTA2bits.BRGH = 1;
break;
case 76800:
SPBRG2 = 3;
TXSTA2bits.BRGH = 0;
break;
case 115200:
SPBRG2 = 10;
TXSTA2bits.BRGH = 1;
break;
case 9600:
SPBRG2 = 129;
TXSTA2bits.BRGH = 1;
break;
default:
SPBRG2 = 129;
TXSTA2bits.BRGH = 1;
RS485_Set_Baud_Rate(9600);
break;
}
/* select async mode */
TXSTA2bits.SYNC = 0;
/* enable transmitter */
TXSTA2bits.TXEN = 1;
/* serial port enable */
RCSTA2bits.SPEN = 1;
/* since we are using RS485,
we need to explicitly say
transmit enable or not */
RS485_RX_DISABLE = 0;
RS485_TX_ENABLE = 0;
}
/****************************************************************************
* DESCRIPTION: Disables the RS485 hardware
* RETURN: none
* ALGORITHM: none
* NOTES: none
*****************************************************************************/
void RS485_Disable_Port(void)
{
RCSTA2 &= 0x4F; /* Disable the receiver */
TXSTA2bits.TXEN = 0; /* and transmitter */
PIE3 &= 0xCF; /* Disable both interrupts */
}
void RS485_Reinit(void)
{
RS485_Set_Baud_Rate(9600);
}
/****************************************************************************
* DESCRIPTION: Initializes the data and the port
* RETURN: none
* ALGORITHM: none
* NOTES: none
*****************************************************************************/
void RS485_Initialize(void)
{
/* Init the Rs485 buffers */
RS485_Comstat.RxHead = 0;
RS485_Comstat.RxTail = 0;
RS485_Comstat.Rx_Bytes = 0;
RS485_Comstat.Rx_Bufferoverrun = FALSE;
RS485_Comstat.TxHead = 0;
RS485_Comstat.TxTail = 0;
RS485_Comstat.Tx_Bytes = 0;
/* FIXME: read the data from storage */
/* I2C_Read_Block(
EEPROM_DEVICE_ADDRESS,
(char *)&RS485_Baud_Rate,
sizeof(RS485_Baud_Rate),
EEPROM_MSTP_BAUD_RATE_ADDR); */
RS485_Initialize_Port();
}
bacnet-stack/ports/pic18f6720/rs485.h
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/*####COPYRIGHTBEGIN####
-------------------------------------------
Copyright (C) 2004 Steve Karg
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to:
The Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307
USA.
As a special exception, if other files instantiate templates or
use macros or inline functions from this file, or you compile
this file and link it with other works to produce a work based
on this file, this file does not by itself cause the resulting
work to be covered by the GNU General Public License. However
the source code for this file must still be made available in
accordance with section (3) of the GNU General Public License.
This exception does not invalidate any other reasons why a work
based on this file might be covered by the GNU General Public
License.
-------------------------------------------
####COPYRIGHTEND####*/
#ifndef RS485_H
#define RS485_H
#include <stdint.h>
#include "mstp.h"
typedef struct
{
uint8_t RxHead;
uint8_t RxTail;
uint8_t Rx_Bytes;
uint8_t TxHead;
uint8_t TxTail;
uint8_t Tx_Bytes;
uint8_t Rx_Bufferoverrun : 1;
uint8_t Tx_Bufferoverrun : 1;
} COMSTAT;
extern COMSTAT RS485_Comstat;
extern volatile uint8_t RS485_Rx_Buffer[MAX_MPDU];
extern volatile uint8_t RS485_Tx_Buffer[MAX_MPDU];
extern uint32_t RS485_Baud_Rate;
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
void RS485_Reinit(void);
void RS485_Initialize(void);
void RS485_Disable(void);
void RS485_Send_Frame(volatile struct mstp_port_struct_t *mstp_port, /* port specific data */
uint8_t * buffer, /* frame to send (up to 501 bytes of data) */
uint16_t nbytes); /* number of bytes of data (up to 501) */
uint8_t RS485_Check_UART_Data(volatile struct mstp_port_struct_t *mstp_port); /* port specific data */
void RS485_Interrupt_Rx(void);
void RS485_Interrupt_Tx(void);
uint32_t RS485_Get_Baud_Rate(void);
bool RS485_Set_Baud_Rate(uint32_t baud);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif
bacnet-stack/ports/pic18f6720/stdbool.h
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#ifndef STDBOOL_H
#define STDBOOL_H
/* C99 Boolean types for compilers without C99 support */
#ifndef __cplusplus
typedef char _Bool;
#ifndef bool
#define bool _Bool
#endif
#ifndef true
#define true 1
#endif
#ifndef false
#define false 0
#endif
#define __bool_true_false_are_defined 1
#endif
#ifndef FALSE
#define FALSE 0
#endif
#ifndef TRUE
#define TRUE 1
#endif
#endif
bacnet-stack/ports/pic18f6720/stdint.h
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/* Defines the standard integer types that are used in code */
#ifndef STDINT_H
#define STDINT_H 1
#include <stddef.h>
typedef unsigned char uint8_t; /* 1 byte 0 to 255 */
typedef signed char int8_t; /* 1 byte -127 to 127 */
typedef unsigned short uint16_t; /* 2 bytes 0 to 65535 */
typedef signed short int16_t; /* 2 bytes -32767 to 32767 */
/*typedef unsigned short long uint24_t; // 3 bytes 0 to 16777215 */
typedef unsigned long uint32_t; /* 4 bytes 0 to 4294967295 */
typedef signed long int32_t; /* 4 bytes -2147483647 to 2147483647 */
/* typedef signed long long int64_t; */
/* typedef unsigned long long uint64_t; */
#endif /* STDINT_H */