G-CAMS-DATU/packages/agile_modbus-v1.1.2/examples/tcp_master/tcp_master.c
2024-05-13 16:08:47 +08:00

83 lines
2.0 KiB
C

#include "agile_modbus.h"
#include "tcp.h"
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#define DBG_ENABLE
#define DBG_COLOR
#define DBG_SECTION_NAME "tcp_master"
#define DBG_LEVEL DBG_LOG
#include "dbg_log.h"
static int _sock = -1;
static void *cycle_entry(void *param)
{
uint8_t ctx_send_buf[AGILE_MODBUS_MAX_ADU_LENGTH];
uint8_t ctx_read_buf[AGILE_MODBUS_MAX_ADU_LENGTH];
uint16_t hold_register[10];
agile_modbus_tcp_t ctx_tcp;
agile_modbus_t *ctx = &ctx_tcp._ctx;
agile_modbus_tcp_init(&ctx_tcp, ctx_send_buf, sizeof(ctx_send_buf), ctx_read_buf, sizeof(ctx_read_buf));
agile_modbus_set_slave(ctx, 1);
LOG_I("Running.");
while (1) {
usleep(100000);
tcp_flush(_sock);
int send_len = agile_modbus_serialize_read_registers(ctx, 0, 10);
tcp_send(_sock, ctx->send_buf, send_len);
int read_len = tcp_receive(_sock, ctx->read_buf, ctx->read_bufsz, 1000);
if (read_len < 0) {
LOG_E("Receive error, now exit.");
break;
}
if (read_len == 0) {
LOG_W("Receive timeout.");
continue;
}
int rc = agile_modbus_deserialize_read_registers(ctx, read_len, hold_register);
if (rc < 0) {
LOG_W("Receive failed.");
if (rc != -1)
LOG_W("Error code:%d", -128 - rc);
continue;
}
LOG_I("Hold Registers:");
for (int i = 0; i < 10; i++)
LOG_I("Register [%d]: 0x%04X", i, hold_register[i]);
printf("\r\n\r\n\r\n");
}
tcp_close(_sock);
}
int main(int argc, char *argv[])
{
if (argc < 3) {
LOG_E("Please enter TcpMaster [ip] [port]!");
return -1;
}
_sock = tcp_connect(argv[1], atoi(argv[2]));
if (_sock == -1) {
LOG_E("Connect %s:%d failed!", argv[1], atoi(argv[2]));
return -1;
}
pthread_t tid;
pthread_create(&tid, NULL, cycle_entry, NULL);
pthread_join(tid, NULL);
}