Looking for eval/dev/NUCLEO board allowing to program/debug custom board

[Pavel_47]

Hello,

I'm looking for a board that provides all program/debug signal on a header while allowing to disconnect on-board MCU.

I've looked at a few NUCLEO boards - only JTCK, JTMS, NRST, SWO are exposed to a header (with possibility to disconnect on-board MCU using jumpers and solder bridges), but not MCO, STLK_TX and STLK_RX.

Does exist a board that exposes whole this stuff ?

Thanks.

Pavel.

[STTwo-32]

Hello @Pavel_47 

I may suggest you the Nucleo-68 board of the P-NUCLEO-WB55, it provide GND, NRST, SWDIO, SWCLK, SWO, TX_STlink (VCP) and TX_STlink (RCP) on the JP5:

For the MCO, I don't know if there is a board with STLINK MCO is provided on a header.

Best Regards.

STTwo-32 

[Pavel_47]

Hello @STTwo-32,

Thanks ! A couple of additional questions nevertheless:

The required signals are exposed on two headers: CN13 and CN14. But surprisingly SWO isn't exposed. Any reason for that ?

Moreover on another document (mb1355-wb55rg-d01_schematic.pdf) there are not at all CN13, CN14. What does it mean ?

Sincerely,

Pavel.

[STTwo-32]

You may refer to this FAQ: How to program an STM32 using the on-board ST-LINK... - STMicroelectronics Community and use the JP5.

Best Regards.

STTwo-32

[TDK]

I'm guessing by "MCO" you mean the ~8 MHz signal coming from ST-Link. FWIW, this isn't required for debugging and doesn't appear on any standard programming header.

[Pavel_47]

@TDK I asked IA for this signal. It says that any critical signal can be exposed to this pin. Anyway as you said it isn't critical