STM32CubeMX 5.4.0: code generation for TRACER_EMB fails when choosing USART2 as Uart Trace Source

[ChristophR]

Hi,

When choosing USART2 as "Uart Trace Source" for the TRACER_EMB the generated tracer_emb_conf.h file contains a Java backtrace, and the generated project cannot be built.

#define TRACER_EMB_USART_IRQHANDLER                  USART2_IRQHandler
#define TRACER_EMB_TX_AF_FUNCTION                    LL_GPIO_SetAFPin_0_7
 
Error: on line 185, column 6 in tracer_emb_conf_g0.ftl
Expecting a number here, found: valueNotSetted
The problematic instruction:
----------
==> if-else  [on line 185, column 1 in tracer_emb_conf_g0.ftl]
----------
 
Java backtrace for programmers:
----------
freemarker.core.NonNumericalException: Error: on line 185, column 6 in tracer_emb_conf_g0.ftl
Expecting a number here, found: valueNotSetted

I have attached the full STM32CubeMX project file, and the generated tracer_emb_conf.h.

As a workaround I use the LPUART, code generation works in this case.

Best regards,

Christoph

[Khouloud ZEMMELI]

​Hello @Christoph Rüdisser​ 

Thanks for the feedback, Issue will be fixed in the next release.

We are deeply sorry for any inconvenience this may have caused.

Best Regards,

Khouloud

[ChristophR]

Thanks.

More things which took me some time to figure out:

• I had to select the LL driver for the LPUART in the advanced settings in the "Project Manager" tab in STM32CubeMX. Only then I could get TRACER_EMB to work with the LPUART, by default the HAL driver was selected.
• The calls to the tracer interrupt handlers in stm32g0xx_it.c were not generated by CubeMX. I have added the following:

void DMA1_Channel2_3_IRQHandler(void)
{
  /* USER CODE BEGIN DMA1_Channel2_3_IRQn 0 */
#if defined(_TRACE)
  TRACER_EMB_IRQHandlerDMA();
#endif /* _TRACE */
  /* USER CODE END DMA1_Channel2_3_IRQn 0 */

void USART3_4_LPUART1_IRQHandler(void)
{
  /* USER CODE BEGIN USART3_4_LPUART1_IRQn 0 */
#if defined(_TRACE)
  TRACER_EMB_IRQHandlerUSART();
#endif /* _TRACE */
  /* USER CODE END USART3_4_LPUART1_IRQn 0 */

Shouldn't these things also be done by STM32CubeMX? If not, some documentation / implementation guide would be really helpful!

Best regards,

Christoph

[Khouloud ZEMMELI]

​I'll share your request with team.

Regrads,

Khouloud