UART of NUCLEO-WB09KE UART signal no found

[JunkgyuHan]

Dear ST team.

 

I am testing UART of NUCLEO-WB09KE with the board [STM32WB09 Nucleo-64 board (MB1801 and MB2032)]

I Set UART1 PIN PB4, PB4 with the source attached[100ms period tx send ].

I am checking CN3(23), CN4(35) but no signal shown.

Is there anythn

 

 

 

 

[Imen.D]

Hello @JunkgyuHan ,

Check the pins mapping. Try using PA1 (TX) and PB0 (RX) for UART communication.

• Establishing the initial connection with NUCLEO-WB... - STMicroelectronics Community
• STM32WB09 Nucleo-64 board (MB1801 and MB2032) - User manual

[JunkgyuHan]

Dear @Imen.D 

Thank you for support.

I have tried to check the pin [CN7:5(PB4) and CN7:6(PB5)] with same code, but still not any signal seems.

(Take off SB21 and SB18)

 

I also tested with two origianl example codes for [NUCLEO-WB09KE] : <UART_Print>,<UART_HyperTerminal_IT>

(All Uart1 PB0:PA1)

I took Pin CN3:14 to check the waveform, but nothing shown.

Please Help if anything I missed.

 

[Laurent LOUAZON]

Hello, 
Agree the best is to start from an original code from ST such as <UART_Print>.
I just built and flash it inside Nucleo-WB09.

I am able to connect with an hyperterminal (picture below) set as explained in readme file of this example (Data Length = 7 Bits, One Stop Bit, Odd parity, BaudRate = 115200 baud, Flow control: None)

Are you able to have the same?

Also when you mention you do not see signal of CN3:14.
Are you talking about CN3:14 of MB1801?
Be careful, on MB1801, PA1/PB0 can be accessed on CN3.35 and CN3.37

Although, keep in mind it might be useful to set JP1 jumper on "boot" position for flashing STM32WB09 (especially if you already have an application running with low power). Of course, after flash, this jumper must be set in "user flash" position.
Regards
Laurent