Added port for Atmel AT91SAM7S-EK ARM7 board using the YAGARTO GNU ARM tool suite. Still testing.
This commit is contained in:
skarg
@@ -0,0 +1,183 @@
|
||||
/**************************************************************************
|
||||
*
|
||||
* 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 "AT91SAM7S256.h"
|
||||
#include "board.h"
|
||||
#include "math.h"
|
||||
#include "stdlib.h"
|
||||
#include "string.h"
|
||||
#include "stdbool.h"
|
||||
/* BACnet */
|
||||
#include "rs485.h"
|
||||
#include "datalink.h"
|
||||
#include "npdu.h"
|
||||
#include "apdu.h"
|
||||
#include "dcc.h"
|
||||
#include "iam.h"
|
||||
#include "handlers.h"
|
||||
|
||||
// *******************************************************
|
||||
// FIXME: put in header files External References
|
||||
// *******************************************************
|
||||
extern void LowLevelInit(void);
|
||||
extern unsigned enableIRQ(void);
|
||||
extern unsigned enableFIQ(void);
|
||||
|
||||
extern void TimerInit(void);
|
||||
extern volatile unsigned long Timer_Milliseconds;
|
||||
|
||||
// *******************************************************
|
||||
// Global Variables - ???
|
||||
// *******************************************************
|
||||
unsigned int FiqCount = 0;
|
||||
|
||||
|
||||
static unsigned long LED_Timer_1 = 0;
|
||||
static unsigned long LED_Timer_2 = 0;
|
||||
static unsigned long LED_Timer_3 = 0;
|
||||
static unsigned long LED_Timer_4 = 1000;
|
||||
|
||||
void millisecond_timer(void)
|
||||
{
|
||||
while (Timer_Milliseconds) {
|
||||
Timer_Milliseconds--;
|
||||
if (LED_Timer_1) {
|
||||
LED_Timer_1--;
|
||||
}
|
||||
if (LED_Timer_2) {
|
||||
LED_Timer_2--;
|
||||
}
|
||||
if (LED_Timer_3) {
|
||||
LED_Timer_3--;
|
||||
}
|
||||
if (LED_Timer_4) {
|
||||
LED_Timer_4--;
|
||||
}
|
||||
dlmstp_millisecond_timer();
|
||||
}
|
||||
}
|
||||
|
||||
int main (void) {
|
||||
unsigned long IdleCount = 0; // idle loop blink counter (2x)
|
||||
bool LED3_Off_Enabled = true;
|
||||
uint16_t pdu_len = 0;
|
||||
BACNET_ADDRESS src; /* source address */
|
||||
uint8_t pdu[MAX_MPDU]; /* PDU data */
|
||||
|
||||
// Initialize the Atmel AT91SAM7S256 (watchdog, PLL clock, default interrupts, etc.)
|
||||
LowLevelInit();
|
||||
TimerInit();
|
||||
/* Initialize the Parallel I/O Controller A Peripheral Clock */
|
||||
volatile AT91PS_PMC pPMC = AT91C_BASE_PMC;
|
||||
pPMC->PMC_PCER = pPMC->PMC_PCSR | (1<<AT91C_ID_PIOA);
|
||||
|
||||
// Set up the LEDs (PA0 - PA3)
|
||||
volatile AT91PS_PIO pPIO = AT91C_BASE_PIOA; // pointer to PIO data structure
|
||||
pPIO->PIO_PER = LED_MASK | SW1_MASK; // PIO Enable Register - allow PIO to control pins P0 - P3 and pin 19
|
||||
pPIO->PIO_OER = LED_MASK; // PIO Output Enable Register - sets pins P0 - P3 to outputs
|
||||
pPIO->PIO_SODR = LED_MASK; // PIO Set Output Data Register - turns off the four LEDs
|
||||
|
||||
// Select PA19 (pushbutton) to be FIQ function (Peripheral B)
|
||||
pPIO->PIO_BSR = SW1_MASK;
|
||||
|
||||
// Set up the AIC registers for FIQ (pushbutton SW1)
|
||||
volatile AT91PS_AIC pAIC = AT91C_BASE_AIC; // pointer to AIC data structure
|
||||
pAIC->AIC_IDCR = (1<<AT91C_ID_FIQ); // Disable FIQ interrupt in AIC Interrupt Disable Command Register
|
||||
pAIC->AIC_SMR[AT91C_ID_FIQ] = // Set the interrupt source type in AIC Source
|
||||
(AT91C_AIC_SRCTYPE_INT_EDGE_TRIGGERED); // Mode Register[0]
|
||||
pAIC->AIC_ICCR = (1<<AT91C_ID_FIQ); // Clear the FIQ interrupt in AIC Interrupt Clear Command Register
|
||||
pAIC->AIC_IDCR = (0<<AT91C_ID_FIQ); // Remove disable FIQ interrupt in AIC Interrupt Disable Command Register
|
||||
pAIC->AIC_IECR = (1<<AT91C_ID_FIQ); // Enable the FIQ interrupt in AIC Interrupt Enable Command Register
|
||||
|
||||
#if defined(BACDL_MSTP)
|
||||
RS485_Set_Baud_Rate(38400);
|
||||
dlmstp_set_mac_address(55);
|
||||
dlmstp_set_max_master(127);
|
||||
dlmstp_set_max_info_frames(1);
|
||||
dlmstp_init(NULL);
|
||||
#endif
|
||||
|
||||
#ifndef DLMSTP_TEST
|
||||
/* 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_REINITIALIZE_DEVICE,
|
||||
handler_reinitialize_device);
|
||||
apdu_set_confirmed_handler(SERVICE_CONFIRMED_WRITE_PROPERTY,
|
||||
handler_write_property);
|
||||
/* handle communication so we can shutup when asked */
|
||||
apdu_set_confirmed_handler
|
||||
(SERVICE_CONFIRMED_DEVICE_COMMUNICATION_CONTROL,
|
||||
handler_device_communication_control);
|
||||
#endif
|
||||
|
||||
// enable interrupts
|
||||
enableIRQ();
|
||||
enableFIQ();
|
||||
|
||||
// endless blink loop
|
||||
while (1) {
|
||||
millisecond_timer();
|
||||
/* interrupt turns on the LED, we turn it off */
|
||||
if (((pPIO->PIO_ODSR & LED3) == LED3) && (LED3_Off_Enabled))
|
||||
{
|
||||
LED3_Off_Enabled = false;
|
||||
/* wait */
|
||||
LED_Timer_3 = 250;
|
||||
}
|
||||
if (!LED_Timer_3) {
|
||||
/* turn LED3 (DS3) off */
|
||||
pPIO->PIO_SODR = LED3;
|
||||
LED3_Off_Enabled = true;
|
||||
}
|
||||
if (!LED_Timer_4) {
|
||||
if ((pPIO->PIO_ODSR & LED4) == LED4)
|
||||
pPIO->PIO_CODR = LED4; // turn LED2 (DS2) on
|
||||
else
|
||||
pPIO->PIO_SODR = LED4; // turn LED2 (DS2) off
|
||||
/* wait */
|
||||
LED_Timer_4 = 1000;
|
||||
}
|
||||
|
||||
IdleCount++; // count # of times through the idle loop
|
||||
|
||||
/* BACnet handling */
|
||||
pdu_len = datalink_receive(&src, &pdu[0], MAX_MPDU, 0);
|
||||
if (pdu_len) {
|
||||
pPIO->PIO_CODR = LED3;
|
||||
#ifndef DLMSTP_TEST
|
||||
npdu_handler(&src, &pdu[0], pdu_len);
|
||||
#endif
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
Reference in New Issue
Block a user