Hello everyone,
I have my own custom board based on the STM32WLE5CC , and I want to build a LoRaWAN project on it.
For the RF design, I used the MB1874-LP reference schematic as a base, together with the BALFHB-WL-06D3 balun/filter for a 2-layer PCB, following application note AN6322. I also studied AN5407 and AN5757, and for LoRaWAN specifically AN5406, as well as this video: https://www.youtube.com/watch?v=hJFv4RbN878
The main issue is that almost all available materials only explain how to use the ready-made End_Node example project. At the moment, I am also studying UM2643.
Could you please tell me specifically what else I should study for this topic? Maybe I have missed some important materials or documentation related to developing a custom STM32WLE5CC LoRaWAN firmware from scratch.
I also have one more hardware-related question:
I accidentally swapped the positions of L3 and C26 in the RF matching network (see screenshot). Could this cause TX power loss or reduce RX sensitivity?
Thanks in advance for any advice or suggestions.
