blog:2020-07-24_iar_ewarm_file_is_undefined_issue

2020-07-24 IAR EWARM FILE is undefined issue

When remap the printf, sometime we add the code as follows:

UART_HandleTypeDef Uart1Handle;

int fputc(int ch, FILE *f)
{
  uint8_t temp[1] = {ch};
  HAL_UART_Transmit(&Uart1Handle, temp, 1, 0xffff);
  return ch;
}

But, when compile it will cause the error of FILE is undefined.

Solution

The reason is that the Option of Library Configuration is using Normal by default
Just change the Library into Full
Then, we can compile it without error

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blog/2020-07-24_iar_ewarm_file_is_undefined_issue.txt · Last modified: 2020/07/24 09:49 (external edit)