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printf is not working. Uart is working. What can be a reason?

Forum|Forum|5 years ago
January 24, 2021
1 reply
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I took the "Examples\UART\UART_Printf" as reference and added the EmbOS. Printf worded with embOS.

In some steep, after project clean or some project changes, the printf stopped to work.

Uart works.

I use STM32CubeIDE.

What can be a reason?

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Best answer by Vangelis Fortounas

Hello

define fputc function like this

int fputc (int ch, FILE * stream)

{

HAL_UART_Transmit(&huart1,(unsigned char*)&ch,1,100);

return ch;

}

This is also an good article about semihosting in CubeIde

Vangelis FortounasBest answer

Associate II

Hello

define fputc function like this

int fputc (int ch, FILE * stream)

{

HAL_UART_Transmit(&huart1,(unsigned char*)&ch,1,100);

return ch;

}

This is also an good article about semihosting in CubeIde