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Associate II
August 11, 2025
Question

STM32WL5MOC TCXO issue

  • August 11, 2025
  • 1 reply
  • 287 views

Hello.

I'm trying to launch a minimal LoRaWAN project. CubeMX version 6.15.0. When using MSI RC clocking, the module works without issues. When attempting to use the TCXO, the module starts, packets are successfully transmitted to the server, but are not received (IRQ_RX_TX_TIMEOUT error). 

In the "LoRaWAN Middleware / TCXO Support" settings, it displays "TCXO not available," and no other options are present.

Part of the code from the SystemClock_Config initialization function:

RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE|RCC_OSCILLATORTYPE_LSE;

RCC_OscInitStruct.HSEState = RCC_HSE_BYPASS_PWR;

Attaching screenshots of the settings.

1 reply

STTwo-32
Technical Moderator
August 12, 2025

Hello @Zedder 

There is issue related to reception will using the TCXO. For this error, i suggest you to increase the timeout used for reception.

Best Regards.

STTwo-32