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| #include <stdio.h>
#include <libserialport.h>
#include <string.h>
#include <windows.h>
#include <pthread.h>
struct sp_port *port = NULL;
int connected = 0;
int serialport_connect(const char *port_name)
{
if(port != NULL)
{
sp_close(port);
sp_free_port(port);
port = NULL;
}
sp_get_port_by_name(port_name, &port);
int res = sp_open(port, SP_MODE_READ_WRITE);
if(res != SP_OK)
{
sp_free_port(port);
port = NULL;
return -1;
}
sp_set_baudrate(port, 115200);
sp_set_bits(port, 8);
sp_set_parity(port, SP_PARITY_NONE);
sp_set_stopbits(port, 1);
sp_set_flowcontrol(port, SP_FLOWCONTROL_NONE);
return 0;
}
const int serialport_connect_to_available(void)
{
struct sp_port **port_list = NULL;
enum sp_return result = sp_list_ports(&port_list);
if (result != SP_OK) {
return -1;
}
for (int i = 0; port_list[i] != NULL; i++)
{
struct sp_port *port = port_list[i];
char *port_name = sp_get_port_name(port);
int r = serialport_connect(port_name);
if(r == 0)
{
printf("\n连接到串口 %s\n\n", port_name);
sp_free_port_list(port_list);
return 0;
}
}
sp_free_port_list(port_list);
return -1;
}
void *serial_write_task(void * arg)
{
char buf[8192];
while (1)
{
gets(buf);
int n = strlen(buf);
buf[n++] = '\r';
buf[n++] = '\n';
if(connected)
{
sp_blocking_write(port, buf, n, 1000);
}
}
}
int main(int argc, char const *argv[])
{
SetConsoleOutputCP(65001);
HANDLE hOutput = GetStdHandle(STD_OUTPUT_HANDLE);
SetConsoleMode(hOutput, ENABLE_PROCESSED_OUTPUT | ENABLE_VIRTUAL_TERMINAL_PROCESSING);
int res = serialport_connect_to_available();
if(res != 0)
printf("\n未找到串口, 请将设备插入USB口\n");
else
connected = 1;
char buf[4096];
int buf_len = sizeof(buf);
gets(buf);
pthread_t t;
pthread_create(&t, NULL, serial_write_task, NULL);
while (1)
{
if(connected == 1)
{
int n = sp_blocking_read(port, buf, buf_len, 1);
if(n < 0)
{
printf("\n串口连接断开了!\n");
connected = 0;
continue;
}
printf("%.*s", n, buf);
fflush(stdout);
}
else if(serialport_connect_to_available() == 0)
{
connected = 1;
}
Sleep(10);
}
getchar();
return 0;
}
|
