Hello,
I have the same problem…
When I try to replace LoRaWAN layer by a ping pong application, SUBGHZSPI_Transmit function return HAL_SUBGHZ_ERROR_TIMEOUT.
I tried to use the hardware configuration of this repo (creating a new project from the .ioc file) : GitHub - danak6jq/Seeed-LoRa-E5: LoRaWAN end node built from scratch using CubeMX for WLE5x in the LoRa-E5
But in this case, radio events never occured (OnTxDone onRxDone…).
Did you find a solution ?
Thanks