Nucleo-WBA25CE1 Direct Test Mode

[gocchan]

I tried building and flashing the sample project BLE_TransparentMode to verify Direct Test Mode on the Nucleo-WBA25CE1, but it doesn't work properly.
When I connect using STM32CubeMonitor-RF, an error pops up and the application terminates.
Sending 0x93, 0x94 (TX, 2440 MHz, PRBS9) from the terminal yields no response.
Two COM ports appear, but connecting to either one results in the same outcome.
How can I enable Direct Test Mode?
 

 

[Imen.D]

Hello ​@gocchan ,

Try connecting the board to the recent version of STM32CubeProgrammer V2.22.0.

Did you have an issue when connecting the board to STM32CubeProgrammer?

Make sure you start the Wireless stack and program it in the correct location.

 

[gocchan]

Hello ​@Imen.D 

I was able to connect to the board using CubeProgrammer 2.22.0, perform an "Erase flash memory", and then write BLE_TransparentMode\STM32CubeIDE\Debug\BLE_TransparentMode.hex, but I still cannot connect using CubeMonitor-RF.

[Imen.D]

Hi ​@gocchan ,

Make sure to select the correct COM port and baud rate.

I recommend this guide which explains the steps to connect your device to the STM32CubeMonitor-RF tool: 

• Connecting STM32 wireless products series to STM32CubeMonitor-RF | Community

[gocchan]

 

When I connect the board, two COM ports appear. I've tried both, but neither works.

I'm using the BLE_TransparentMode project, and the source code seems to be set to 115200 bps, but when I connect with CubeMonitor-RF, an error dialog appears.
 

 

Changing the Baud Rate doesn't help.
However, only when I set COM36 and 115200 does two error dialogs appear, and the application is forcibly closed.
 

 

[gocchan]

I understand that BLE_TransparentMode does not support DTM commands and only supports HCI commands.

Thank you.