Question about HAL_UART_Transmit?

antonius · ‎2016-02-04

Posted on February 04, 2016 at 14:56

Guys,

How can I print fr to UART ?

fr = f_open(&MyFile, ''STM32.TXT'', FA_CREATE_ALWAYS | FA_WRITE);

HAL_UART_Transmit(&huart1, fr, 32, 1); // Debug

I got this error :

..\Src\main.c(85): error: #167: argument of type ''FRESULT'' is incompatible with parameter of type ''uint8_t *

Thanks

Nesrine M_O · ‎2016-02-05

Posted on February 05, 2016 at 09:20

Hi h.rick,

I'd highly recommend you to take a look to the UART project under STM32Cube F4 package for example:

STM32Cube_FW_F4_V1.10.0\Projects\STM324x9I_EVAL\Examples\UART\UART_Printf

This example shows how to reroute the C library printf function to the UART.

-Syrine-