SW4STM32C datasheet(66/99 Pages) STMICROELECTRONICS

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SW4STM32C Datasheet(PDF) 66 Page - STMicroelectronics

Part #	SW4STM32C

Description	STM32 microcontroller debug toolbox

PDF	99 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

Logo

66 / 99 page

Printf debugging

AN4989

66/99

DocID030181 Rev 2

SW4STM32 (and all GCC based toolset)

With syscall.c integrated to the project:

#include "stdio.h"

int __io_putchar(int ch)

{

ITM_SendChar(ch);

return(ch);

}

Without syscall, add:

int

_write(int file, char *ptr, int len)

{

int DataIdx;

for (DataIdx = 0; DataIdx < len; DataIdx++)

{

__io_putchar(*ptr++);

}

return len;

}

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