Problem Using STM32WLE5CCU6

[AKahr.1]

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 @AKahr.1 

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