Custom Schematic & Pinout Review: STM32WL55JC → STM32WL55CC Migration

[rohithinthingstech]

Hi STM Community,

I'm developing a custom LoRa-based board using the STM32WL55CC MCU, migrated from the STM32WL55JC, and referencing the MB138 STM32WL Nucleo-64 board as a design guide.

I've attached a portion of my schematic (generated in KiCad), and I would appreciate if the community could help review the following:

1. Schematic and power supply arrangement

2. Pin configuration and peripheral mapping

3. Radio signal path integrity

4. Compatibility or functional issues that may arise due to migrating from STM32WL55JC to STM32WL55CC

5. General layout or connection concerns for RF and MCU sectionsS

[STTwo-32]

Hello @rohithinthingstech 

For the first three questions, you can find the answers on the DS13293 and on the RM0453. For the HW issues and migration, you may follow the recommendations on this post.  

Best Regards.

STTwo-32