dali/bacnet_stack
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Updated MS/TP Lurker program that monitors packets using the USB->RS485 adapter.

Browse Source
This commit is contained in:
skarg
2007-07-02 22:07:48 +00:00
parent c1be9b7adf
commit e839aad46c
2 changed files with 11 additions and 75 deletions
Download Patch File Download Diff File Expand all files Collapse all files
bacnet-stack/ports/linux/rx_fsm.c
+10 -74
View File
@@ -86,80 +86,20 @@ uint16_t dlmstp_put_receive(
return 0;
}
#if 1
static const uint8_t CRC_Table[256] =
uint16_t dlmstp_get_send(
uint8_t src, /* source MS/TP address for creating packet */
uint8_t * pdu, /* data to send */
uint16_t max_pdu, /* amount of space available */
unsigned timeout) /* milliseconds to wait for a packet */
{
0000, 0xfe, 0xff, 0x01, 0xfd, 0x03, 0x02, 0xfc,
0xf9, 0x07, 0x06, 0xf8, 0x04, 0xfa, 0xfb, 0x05,
0xf1, 0x0f, 0x0e, 0xf0, 0x0c, 0xf2, 0xf3, 0x0d,
0x08, 0xf6, 0xf7, 0x09, 0xf5, 0x0b, 0x0a, 0xf4,
0xe1, 0x1f, 0x1e, 0xe0, 0x1c, 0xe2, 0xe3, 0x1d,
0x18, 0xe6, 0xe7, 0x19, 0xe5, 0x1b, 0x1a, 0xe4,
0x10, 0xee, 0xef, 0x11, 0xed, 0x13, 0x12, 0xec,
0xe9, 0x17, 0x16, 0xe8, 0x14, 0xea, 0xeb, 0x15,
0xc1, 0x3f, 0x3e, 0xc0, 0x3c, 0xc2, 0xc3, 0x3d,
0x38, 0xc6, 0xc7, 0x39, 0xc5, 0x3b, 0x3a, 0xc4,
0x30, 0xce, 0xcf, 0x31, 0xcd, 0x33, 0x32, 0xcc,
0xc9, 0x37, 0x36, 0xc8, 0x34, 0xca, 0xcb, 0x35,
0x20, 0xde, 0xdf, 0x21, 0xdd, 0x23, 0x22, 0xdc,
0xd9, 0x27, 0x26, 0xd8, 0x24, 0xda, 0xdb, 0x25,
0xd1, 0x2f, 0x2e, 0xd0, 0x2c, 0xd2, 0xd3, 0x2d,
0x28, 0xd6, 0xd7, 0x29, 0xd5, 0x2b, 0x2a, 0xd4,
0x81, 0x7f, 0x7e, 0x80, 0x7c, 0x82, 0x83, 0x7d,
0x78, 0x86, 0x87, 0x79, 0x85, 0x7b, 0x7a, 0x84,
0x70, 0x8e, 0x8f, 0x71, 0x8d, 0x73, 0x72, 0x8c,
0x89, 0x77, 0x76, 0x88, 0x74, 0x8a, 0x8b, 0x75,
0x60, 0x9e, 0x9f, 0x61, 0x9d, 0x63, 0x62, 0x9c,
0x99, 0x67, 0x66, 0x98, 0x64, 0x9a, 0x9b, 0x65,
0x91, 0x6f, 0x6e, 0x90, 0x6c, 0x92, 0x93, 0x6d,
0x68, 0x96, 0x97, 0x69, 0x95, 0x6b, 0x6a, 0x94,
0x40, 0xbe, 0xbf, 0x41, 0xbd, 0x43, 0x42, 0xbc,
0xb9, 0x47, 0x46, 0xb8, 0x44, 0xba, 0xbb, 0x45,
0xb1, 0x4f, 0x4e, 0xb0, 0x4c, 0xb2, 0xb3, 0x4d,
0x48, 0xb6, 0xb7, 0x49, 0xb5, 0x4b, 0x4a, 0xb4,
0xa1, 0x5f, 0x5e, 0xa0, 0x5c, 0xa2, 0xa3, 0x5d,
0x58, 0xa6, 0xa7, 0x59, 0xa5, 0x5b, 0x5a, 0xa4,
0x50, 0xae, 0xaf, 0x51, 0xad, 0x53, 0x52, 0xac,
0xa9, 0x57, 0x56, 0xa8, 0x54, 0xaa, 0xab, 0x55
};
static uint8_t calculate_header_CRC(
volatile struct mstp_port_struct_t *mstp_port)
{
uint8_t crc8 = 0xFF; /* used to calculate the crc value */
crc8 = CRC_Table[mstp_port->FrameType ^ crc8];
crc8 = CRC_Table[mstp_port->DestinationAddress ^ crc8];
crc8 = CRC_Table[mstp_port->SourceAddress ^ crc8];
crc8 = CRC_Table[HI_BYTE(mstp_port->DataLength) ^ crc8];
crc8 = CRC_Table[LO_BYTE(mstp_port->DataLength) ^ crc8];
return (~crc8);
return 0;
}
#else
static uint8_t calculate_header_CRC(
volatile struct mstp_port_struct_t *mstp_port)
{
uint8_t crc8 = 0xFF; /* used to calculate the crc value */
crc8 = CRC_Calc_Header(mstp_port->FrameType, crc8);
crc8 = CRC_Calc_Header(mstp_port->DestinationAddress, crc8);
crc8 = CRC_Calc_Header(mstp_port->SourceAddress, crc8);
crc8 = CRC_Calc_Header(HI_BYTE(mstp_port->DataLength), crc8);
crc8 = CRC_Calc_Header(LO_BYTE(mstp_port->DataLength), crc8);
return (~crc8);
}
#endif
static void print_received_packet(
volatile struct mstp_port_struct_t *mstp_port,
bool print_crc_flag)
volatile struct mstp_port_struct_t *mstp_port)
{
unsigned i;
uint8_t crc8 = 0xFF; /* used to calculate the crc value */
/* Preamble: two octet preamble: X`55', X`FF' */
/* Frame Type: one octet */
/* Destination Address: one octet address */
@@ -178,10 +118,6 @@ static void print_received_packet(
HI_BYTE(mstp_port->DataLength),
LO_BYTE(mstp_port->DataLength),
mstp_port->HeaderCRCActual);
if (print_crc_flag) {
crc8 = calculate_header_CRC(mstp_port);
fprintf(stderr, "[%02X] ", crc8);
}
if (mstp_port->DataLength) {
for (i = 0; i < mstp_port->DataLength; i++) {
fprintf(stderr,"%02X ",
@@ -220,11 +156,11 @@ int main(void)
/* process the data portion of the frame */
if (mstp_port->ReceivedValidFrame) {
mstp_port->ReceivedValidFrame = false;
print_received_packet(mstp_port, true);
print_received_packet(mstp_port);
} else if (mstp_port->ReceivedInvalidFrame) {
mstp_port->ReceivedInvalidFrame = false;
fprintf(stderr, "ReceivedInvalidFrame\n");
print_received_packet(mstp_port, true);
print_received_packet(mstp_port);
}
}
bacnet-stack/ports/linux/rx_fsm.mak
+1 -1
View File
@@ -13,7 +13,7 @@ SRCS = rs485.c \
OBJS = ${SRCS:.c=.o}
TARGET = rxfsm
TARGET = rx_fsm
all: ${TARGET}