Hi everyone,
I’ve designed a custom board based on the STM32WL55CCU6, but I accidentally left out the external HSE crystal. I'm wondering: is the HSE strictly required to use the radio features (specifically LoRa or LoRaWAN), or is it possible to rely on the internal HSI instead?
I’m aware that the HSI has higher frequency deviation compared to an external crystal, but since I also control the LoRaWAN gateway, I might be able to tolerate some drift or compensate for it.
Has anyone tried operating the radio using only the internal oscillator? Any guidance or experience would be greatly appreciated.
Thanks in advance!
