PROBING PINS/LOGICAL ANALYZERS

[HABIJ.1]

Hello ST community,

I am using STM32L476RG nucleo board and I am interested in reading the boards pin states while running , especially I would like to debug the serial protocols like SPI, I2C, ...

I tried with Cube Monitor but it seems, it is only used to inspect variables and not for probing pins.

Does anyone know if there is a ST tool that can be used for probing pins? If not, could someone recommend a third party tool? I have identified some analogical analyzers that could help : SALEAE, SEGGER J-LINK, ... Does anyone have a user experience to share?

Thanks in advance,

Regards,

[Uwe Bonnes]

If you have GPIOx->IDR and ODR in your program, you should be able to read themvia the monitor. I doubt however that you get sensible sampling rates to decode. Saleae works find, if you can couple it to the lines in question.

[HABIJ.1]

Thanks for the reply,

What do you mean by coupling SALEAE "to the lines in question"?

[Tesla DeLorean]

Attach wires to the pins, traces, vias, headers, etc​

[HABIJ.1]

Thanks