p_lusterinc_camera_focallength_encoder_reset/usersrc/usermain.c

#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>

#include "lwip/opt.h"
#include "lwip/sys.h"
#include "lwip/api.h"
#include "main.h"

int fputc(int ch, FILE *stream)
{
  uint8_t c = ch;
  HAL_UART_Transmit(&huart1, &c, 1, 100);
  return ch;
}

void user_main()
{
  printf("==============ethernet_sound_acquisition_card=============\r\n");

  while (1)
  {
    osDelay(1);
  }
}