Debugging with STM32CubeIDE and STM32F407Discovery

Hi,

try debug with SWV my simple blinky programm but it dosn't work correct.

I use a simple USB-cable (ST-LINK)to connect with my Win10 PC. STMCube is updated to 1.2.1

Here the code of the _write function:

int _write(int file, char *ptr, int len)
{
 /* Implement your write code here, this is used by puts and printf for example */
 int i=0;
 for(i=0 ; i<len ; i++)
 ITM_SendChar((*ptr++));
 return len;
}

So i've a few questions ...

A) At Debug configuration: I found several values for core Clock and SWOClock.

I think coreclock is the same value like my controller but were i find the correct value for SWO-clock?

B) Data trace: which is the correct addres and where i can find it?

Currently i can read the variable (counter i of a "for"-loop) via "view memeory".

But it dosn't work at runtime ... i have to pasue and then values of the memory-view will updated. If i click on "play"-Button values are frezzed -> ...pause -> new value.

My goal is to print in the SWV ITM Data Console via prinft-commando .

By the way... why does it different if i uncomment the "_write"-function???

Thank you for your help,

Günther

here you found my main function:

int main(void)
{
	HAL_Init();
 /* USER CODE BEGIN 1 */
 
	 int i;
 
	 __HAL_RCC_GPIOD_CLK_ENABLE();
	 __HAL_RCC_GPIOA_CLK_ENABLE();
	 GPIOD -> MODER |= (1<<24); // Set pin 12 (orange LED)to be general purpose output in GPIO port mode register
	 GPIOD -> MODER |= (1<<26); // Set pin 13 (orange LED)to be general purpose output in GPIO port mode register
	 GPIOD -> MODER |= (1<<28); // Set pin 13 (orange LED)to be general purpose output in GPIO port mode register
	 // GPIOD -> MODER |= (1<<30); // Set pin 13 (orange LED)to be general purpose output in GPIO port mode register
 
	 // void GPIO_config(void);
 
	 while(1)
	 {
	 for (i = 0; i < 1000000; ++i); // Delay
	 		GPIOD -> ODR |= (1<<13); // Turn GPIOD pin13 (orange LED) ON
	 		printf("Hello World!");
	 		//	GPIOD -> ODR |= (1<<14); // Turn GPIOD pin13 (orange LED) ON
	 //	GPIOD -> ODR |= (1<<15); // Turn GPIOD pin13 (orange LED) ON
	 		ITM_SendChar( 65 ); // Send ASCII code 65 = ’A’
	 	for (i = 0; i < 1000000; ++i); // Delay
	 	GPIOD -> ODR &= ~(1<<13); // Turn GPIOD pin13 (orange LED) OFF
	 // 	GPIOD -> ODR &= ~(1<<14); // Turn GPIOD pin13 (orange LED) OFF
	 // 	GPIOD -> ODR &= ~(1<<15); // Turn GPIOD pin13 (orange LED) OFF
 
	 	ITM_SendChar( 65 ); // Send ASCII code 65 = ’A’
	 	printf("TEst %i",i);
	 }
 
 /* USER CODE END 1 */
 
 
 /* MCU Configuration--------------------------------------------------------*/
 
 /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
 
 
 /* USER CODE BEGIN Init */
 
 /* USER CODE END Init */
 
 /* Configure the system clock */
 SystemClock_Config();
 
 /* USER CODE BEGIN SysInit */
 
 /* USER CODE END SysInit */
 
 /* Initialize all configured peripherals */
 MX_GPIO_Init();
 MX_DMA_Init();
 MX_CAN1_Init();
 MX_I2C1_Init();
 MX_SPI2_Init();
 MX_UART4_Init();
 MX_ADC1_Init();
 /* USER CODE BEGIN 2 */
 
/*
int Get_ADC_Converted_Value(){
 ADC_SoftwareStartConv(ADC2);
 while(ADC_GetFlagStatus(ADC2, ADC_FLAG_EOC))
 {
 return ADC_GetConversionValue(ADC2);
 }
}
*/
 /* USER CODE END 2 */
 
 
 
 /* Infinite loop */
 /* USER CODE BEGIN WHILE */
// while (1)
// {
 /* USER CODE END WHILE */
 
 /* USER CODE BEGIN 3 */
 // }
 /* USER CODE END 3 */
}