STM32CUBE RTOS STATE Not showing all Queues/Semaphores

[NMartin]

Hello, 

I am trying to use the STM32CUBE RTOS STATE panel within VSCode as opposed to setting a watch variable for xQueueRegistry, but the state panel does not match what is shown in the queue registry. Only the first queue is shown. 

Also, I am curious how to get Semaphores to show up in the semaphores portion of the tree in the state panel. The semaphores I am using are binary semaphores which under the hood are just generic queues.

[LaurentL]

Hello,

For the Semaphores that are just generic queues, I would say it is normal to not see them as Semaphores.

But why we don't see all the Queues, I don't know.

I remember that we had an issue to list the registry queue.

Do you have a msg in console debug log like "Missing symbol: xQueueRegistrySize." ?

In order for RTOS_proxy to return objects (Semaphores and Queues) from the queue registry, your application must have this code :

uint32_t xQueueRegistrySize = configQUEUE_REGISTRY_SIZE;

Check that the code is not optimized because variable not used.

I had to add this line in the appli code : 

uint32_t temp = xQueueRegistrySize;

The first line was added in global and this one in main.

Can you try this to see the queues.

Rgds,

Laurent

[NMartin]

Hi Laurent, 

xQueueRegistrySize was not defined. So I added the following lines of code to main.c as you suggested 

Optimization is set to -O0, so nothing should be optimized out. But just to be sure, I checked that I could view temp, xQueueRegistrySize and xQueueRegistry as a watch variables.

There are three entries in the registry queue, but only QCAD is shown in the RTOS State panel. 

Also, after flashing of the device, I still get this message "RTOS proxy: Missing symbol: xQueueRegistrySize."

I tried adding the xQueueRegistrySize variable as a global out (outside the int main(void) entry point), but when I do so I run into a different error that prevents the debug session from connecting. I think this is a different issue that I will create another post about. 

[LaurentL]

Hello,

Here is where I have put the 2 lines, 1 before main and the temp inside main :

uint32_t xQueueRegistrySize = configQUEUE_REGISTRY_SIZE;

/**

  * @brief  The application entry point.

  * @retval int

  */

int main(void)

{

  /* USER CODE BEGIN 1 */

  /* USER CODE END 1 */

  /* MCU Configuration--------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */

  HAL_Init();

  /* USER CODE BEGIN Init */

  uint32_t temp = xQueueRegistrySize;

Did you try this config ?

These 2 lines added should not interfere with debug and you should be able to not see the message of the missing symbol.