STM32WB5MMG: Cube Monitor RF refuses to connect

[vishalkeshavamurthy]

We are using an STM32WB5MMG in a product, We needed to run a few BLE tests for compliance needs and came across the BLE transparent mode to help with BLE tests. 

In accordance with the ReadMe under BLE_TransparentMode inside STM32WB5MM-DK, we have undertaken the following steps 

• Updated FUS to stm32wb5x_FUS_fw.bin at 0x080EE000
• Updated soft device with stm32wb5x_BLE_Stack_full_extended_fw.bin to 0x080C7000
• Modified BLE transparent Mode to change USART pins being used to PA9 and PA10 though Cube MX
  
  

Updated FUS and Stack 

Updated VCP_TX and VCP_RX

The CubeMonitor-RF software refuses to connect with the device however 

Unable to connect 

No changes are done to the transparent mode example with the exception of UART pin update. ioc file PDF attached 

[FilipKremen]

Hello,

could you please share the modified project, so I could try to reproduce it on my side?

Thank you.

Best regards,

ST support

[vishalkeshavamurthy]

Hello @FilipKremen 

Appreciate the offer to help thanks! 

I am using the project as is from the latest (V1.23.0) release of Cube Repo [[LINK]]

Specifically I am building the STM32WB5MM-DK/Applications/BLE/BLE_TransparentMode project with 1 modification, changing of default USART pins to PA9 and PA10 to fit my custom board. Original GIT link here [[LINK]]. Also attached is the ICO file where the pin change is done for regenerating the project 

I have already attached a screenshot of the CubeProgrammer window in the thread above, showing my FUS and BLE stack updated correctly. 

Please note that I had to update both the FUS and stack as instructed, the other example projects also did not seem to be advertising as expected, I ran out of time today to investigate further 

Also, can the FUS not be downgraded once upgraded? I was unable to downgrade and retest the board with our known functioning FW