unsigned int rs232_simple_test(void)
{
unsigned int try = 0;
unsigned int bytes = 0;
unsigned char data[1];
unsigned int ret = 0;
struct rs232_port_t *p = NULL;
p = rs232_init();
if (p == NULL)
return 1;
#ifdef WIN32
rs232_set_device(p, "COM1");
#else
rs232_set_device(p, "/dev/ttyS1");
#endif
ret = rs232_open(p);
if (ret) {
rs232_end(p);
return err(ret);
}
rs232_set_baud(p, RS232_BAUD_115200);
printf("[*] port settings: %s\n", rs232_to_string(p));
rs232_flush(p);
while (try++ < 10) {
printf("%02d. [*] read: ", try);
data[0] = 0x00;
ret = rs232_read_timeout(p, data, 1, &bytes, 1000);
if (ret)
err(ret);
else
printf("0x%02x len: %d\n", data[0], bytes);
data[0] = 0x05;
bytes = 0;
printf("%02d. [*] write: ", try);
ret = rs232_write_timeout(p, data, 1, &bytes, 1000);
if (ret)
err(ret);
else
printf("len: %d\n", bytes);
}
rs232_end(p);
return 0;
}
/* __tostring metamethod */
static int lua_port_tostring(lua_State *L)
{
const char *ret;
struct rs232_port_t *p = *(struct rs232_port_t**) luaL_checkudata(L, 1, MODULE_NAMESPACE);
if (p == NULL) {
lua_pushnil(L);
return 1;
}
ret = rs232_to_string(p);
if (ret == NULL)
lua_pushnil(L);
else
lua_pushstring(L, ret);
return 1;
}
