Problem Using STM32WLE5CCU6

[Legacy member]

Hello, I'm trying to use STM32WLE5CCU6 MCU as a radio module transceiver.

I have followed the MB1874_LowPower reference design down to it's 0.7 mm substrate thickness.

I connected the internal MCU RF power supply pins required like in the reference design and made sure i connected both of oscillators.  I made sure to connect the necessary solder jumpers as well especially for the internal power supplies.

However I can't seem to be able to run the MCU as neither a transmitter or receiver. 

But when the program reaches the line of code Radio.Rx() I can not communicate with MCU anymore via STM32 debugger. So I can't run my MCU with this program.

How do I fix this problem? Any help is appreciated.

[STTwo-32]

Hello @Legacy member 

If you are using one of our examples. You need to take care of some difference between both STM32WL55 and STM32WLE55 MCUs that may cause this error. If no, I suggest you check your design with a HW expert.

Best Regards.

STTwo-32