Good afternoon,
I am currently investigating the FHSS in the STM32WLE5JC chip. Using the STM32 SubGHz radio stack
version 1.3.1 I am unable to use any of the settings with LoRa. Enabling the FHSS and setting
the period does not change anything and the messages are transmitted as if this was omitted.
It is my understanding that the radio IP is from Semtech, I cannot find much detail on if the
hardware is based exactly on a Semtech board (i.e, SX1262) or a custom implementation.
Back to LoRa FHSS have looked through the other forums and in 2020 an ST Employee said
it was not possible with the current stack, and in 2025 that it could be done
(but the example provided was for LR-FHSS which uses a different modulation scheme GMSK).
My questions:
Is the STM32WLE5JC hardware comparable to a specific Semtech chip (so I can understand the
limitations)?
Are the FHSS settings in the STM32 radio driver enabled for LoRa (it describes
the settings are LoRa specific)?
Thank You!
void ( *SetTxConfig )( RadioModems_t modem, int8_t power, uint32_t fdev,
uint32_t bandwidth, uint32_t datarate,
uint8_t coderate, uint16_t preambleLen,
bool fixLen, bool crcOn, bool freqHopOn,
uint8_t hopPeriod, bool iqInverted, uint32_t timeout );
