add systemview for debugging purposes

Src/main.c

@@ -21,6 +21,7 @@
 
 /* Private includes ----------------------------------------------------------*/
 /* USER CODE BEGIN Includes */
+#include "SEGGER_SYSVIEW.h"
 #include "SEGGER_RTT.h"
 #include "stm32g0b1xx.h"
 #include "stm32g0xx_hal_cortex.h"
@@ -119,6 +120,7 @@ void init_UART1_dma(){
 }
 
 void USART1_IRQHandler(){
+    SEGGER_SYSVIEW_RecordEnterISR();
      if(USART1->ISR & USART_ISR_RXNE_RXFNE){
          //printf("%x ", USART1->RDR);
          rxBuffer[rxBufferPos++] = USART1->RDR;
@@ -150,14 +152,17 @@ void USART1_IRQHandler(){
          USART1->ICR = USART_ICR_UDRCF;
          printf("UDR\n");
      }
+    SEGGER_SYSVIEW_RecordExitISR();
 }
 
 void DMA1_Channel1_IRQHandler(){
+    SEGGER_SYSVIEW_RecordEnterISR();
     if(DMA1->ISR & DMA_ISR_TCIF1){
         DMA1->IFCR = DMA_IFCR_CTCIF1;
         DMA1_Channel1->CCR &= ~( DMA_CCR_EN );
         DMA1_Channel1->CMAR  = ( uint32_t )&rxBuffer[0];
     }
+    SEGGER_SYSVIEW_RecordExitISR();
 }
 /* USER CODE END 0 */
 
@@ -167,9 +172,12 @@ void DMA1_Channel1_IRQHandler(){
   */
 int main(void)
 {
+
   /* USER CODE BEGIN 1 */
   SEGGER_RTT_ConfigUpBuffer(0, NULL, NULL, 0, SEGGER_RTT_MODE_BLOCK_IF_FIFO_FULL);
   printf("Moin!\n");
+
+  SEGGER_SYSVIEW_Conf();            /* Configure and initialize SystemView  */
   /* USER CODE END 1 */
 
   /* MCU Configuration--------------------------------------------------------*/