TCXO Not Supported by SUBGHz_PHY Middleware in STM32CubeMX for STM32WL5MOCHTR

[biobuilder]

TCXO is not supported in the SUBGHz_PHY code generated by STM32CubeMX for the STM32WL5MOCHTR.  

Even with the HSE enabled in the RCC panel, this dialogue box is still shown. 

According to the datasheet, the internal clock labeled "HSE" is a TCXO, and must be configured as such. 

Even with the fix applied to the clocks within SystemClock_Config, the system fails to generate valid code.

void SystemClock_Config(void)
{
...
  RCC_OscInitStruct.HSEState = RCC_HSE_BYPASS_PWR;
...
}

So there is an issue with the internal model within STM32CubeMX (as of 3/13/2025).

When Code is Debugged, the code always gets stuck in the function "HAL_SYSCFG_EnableVREFBUF."

Where should we go from here?

[STTwo-32]

Hello @biobuilder 

I've tested with the last Verion on my side and it seems to be working as expected.

Best Regards.

STTwo-32

[biobuilder]

I am currently using STM32CubeMX V6.12.0.  I have generated code from the project file many times, but it always overwrites the RCC_OscInitStruct.HSEState to RCC_HSE_ON.  Is there an error in our configuration file?

Here is the .ioc file for reference.

[STTwo-32 · Accepted solution]

It was an issue identified and solved for version 6.14.0. So, you should update your STM32CubeMX To the last version.

Best Regards.

STTwo-32

[biobuilder]

Updating to Version 6.14.0 fixed the Clock Configuration issue.  CubeMX is generating this portion correctly now.  

SubGHYz_PHY Middleware still does not recognize the HSE as a TCXO:

We have not fully meshed the FreeRTOS and SubGHZ_Phy Middleware to test whether or not this matters yet.