I want to implement lwip server with stm32 - c

Question

void Tcp_Task(void const * argument)
{
/* USER CODE BEGIN Tcp_Task */
struct netconn *conn, *newconn;
err_t err, accept_err;
struct netbuf *buf;
void *data;
u16_t len;
HAL_GPIO_WritePin(GPIOK, GPIO_PIN_3, GPIO_PIN_SET);
HAL_GPIO_WritePin(GPIOK, GPIO_PIN_5, GPIO_PIN_SET);
LWIP_UNUSED_ARG(argument);
HAL_Delay(1000);
HAL_GPIO_WritePin(GPIOK, GPIO_PIN_3, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOK, GPIO_PIN_5, GPIO_PIN_RESET);
conn = netconn_new(NETCONN_TCP);
HAL_Delay(1000);
HAL_GPIO_WritePin(GPIOK, GPIO_PIN_3, GPIO_PIN_SET);
HAL_GPIO_WritePin(GPIOK, GPIO_PIN_5, GPIO_PIN_SET);
if (conn!=NULL)
{
// netconn_bind(conn, NULL, port 번호)
err = netconn_bind(conn, NULL, 5001);
if (err == ERR_OK)
{
netconn_listen(conn);
while (1)
{
accept_err = netconn_accept(conn, &newconn);
if (accept_err == ERR_OK)
{
while (netconn_recv(newconn, &buf) == ERR_OK)
{
do
{
netbuf_data(buf, &data, &len);
memcpy(receivemsg, data, len);
// 메시지 송신
netconn_write(newconn, data, msg_len, NETCONN_COPY);
}
while (netbuf_next(buf) >= 0);
netbuf_delete(buf);
}
netconn_close(newconn);
netconn_delete(newconn);
}
osDelay(100);
}
}
else
{
netconn_delete(newconn);
}
}
/* Infinite loop */
for(;;)
{
osDelay(100);
}
/* USER CODE END Tcp_Task */
}
I want to use the above to implement lwip server with stm32, but if I debug the project, the server implementation works well, but it's not working because I just want to connect the power without removing the ST-Link wire and debugging it
If you see that the LED is blinking, the code seems to work normally, but strangely, it is not connected to the client
I think there's something about conn = netconn_new (NETCONN_TCP) or LWIP_UNUSED_ARG (argument), but if it's a problem here, shouldn't it not be debugged?
The test was well done by implementing the message response, but if it is not debugged, the client connection is not working
Isn't it usually debugged and if you get the desired result without any errors?
Please tell me the solution
Notes Blog :
https://blog.naver.com/eziya76/221867311729
Things set up in cubemx
lwip
freertos
eth
rcc