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Debug(printf) Viewer for Cortex-M0

inspire

MCU: STM32F030, Cortex-M0
IDE: uVison 5
ST-Link Debugger

I would like to use "debug(printf) viewer" to see my ADC value when debuging.
I just have seen "Trace HW not present"

May you please help me about debug(printf) and send some example?

here is my code for using "Trace";

#include"stdio.h"
#include "stm32f0xx.h"
#define ITM_Port8(n)    (*((volatile unsigned char *)(0xE0000000+4*n)))
#define ITM_Port16(n)   (*((volatile unsigned short*)(0xE0000000+4*n)))
#define ITM_Port32(n)   (*((volatile unsigned long *)(0xE0000000+4*n)))

#define DEMCR           (*((volatile unsigned long *)(0xE000EDFC)))
#define TRCENA          0x01000000
struct __FILE { int handle; /* Add whatever you need here */ };
FILE __stdout;
FILE __stdin;

int fputc(int ch, FILE *f) {
  if (DEMCR & TRCENA) {
    while (ITM_Port32(0) == 0);
    ITM_Port8(0) = ch;
  }
  return(ch);
}

Best regards,
Mehmet

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