STM303RE Setting up your own printf function, no coding needed, debugging using ITM stuff 

This is for fellow students going through, youtube descriptions cant ahve angular brackets, so just type in the 3 #includes in the .c file
All this is shamelessly taken from a uni course of mine, and resued here :_)
myDebugger.h
/*
* myDebugger.h
*
* Created on: Jun 17, 2024
* Author: zero
*/
#ifndef INC_MYDEBUGGER_H_
#define INC_MYDEBUGGER_H_
void debug_printf(const char *fmt, ...);
#endif /* INC_MYDEBUGGER_H_ */
myDebugger.c
/*
* myDebugger.c
* This is a debugging library for functions that we can use when debugging :)
*
* Created on: Jun 17, 2024
* Author: zero
*/
// Includes
// RU-vid does not allow angular brakcets, so you will have to type #include for stdio.h, stdint.h, and stdarg.h
#include "myDebugger.h"
#include "stm32f3xx_hal.h"
// Code
//debug_printf sends a max of 256 characters to the ITM SWO t
//It uses a _variable length argument_, same as normal printf and does stuff :)
//Indeed, just call this function as if it was printf
void debug_printf(const char *fmt, ...) {
char buffer[256];
va_list args;
va_start(args, fmt);
vsnprintf(buffer, sizeof(buffer), fmt, args);
va_end(args);
uint16_t i = 0;
while(buffer[i] != '\0') {
ITM_SendChar(buffer[i]);
i++;
}
}