Regarding STM32H753I-EVAL2 board

[AkshayMR]

We are using STM32H753I-EVAL2 evaluation board. We need to test SPI functionality of microcontroller. The board gives a provision to use CN6 & CN7 connector to do this. But the Samtec connector couldn't be connected with any jumping wires nor we could find a mating connector. How to use these connector pins to test SPI functionality?

[SofLit]

Use this kind of connectors:

[Andrew Neil]

The User Manual gives the Samtec part number:

https://www.st.com/resource/en/user_manual/um2198-evaluation-boards-with-stm32h743xi-and-stm32h753xi-mcus-stmicroelectronics.pdf#page=104

https://www.samtec.com/products/ftr-130-03-l-d-lc - offers a free sample, and has a link to Mouser to purchase.

Or, for easy access to the microcontroller pins without all the extras of the EVAL board, maybe a Nucleo would be more appropriate?

https://www.st.com/en/evaluation-tools/nucleo-h753zi.html

They have simple 0.1" headers ...

[AkshayMR]

What are these connectors called?

[Andrew Neil]

An image search will find them from the picture; eg,

https://www.amazon.co.uk/Ytian-analyzer-Interface-Electronic-Experiment/dp/B08T5Y6R8D

But you'd still be stuck with the fact that the EVAL port uses-up the pins with all those "extras"

Therefore I'd still recommend a Nucleo board for unencumbered access to the microcontroller's pins.

[SofLit · Accepted solution]

Hello @AkshayMR ,

They are called hook clips:

https://uk.rs-online.com/web/c/test-measurement/test-connectors/grabber-hook-clips/?srsltid=AfmBOoq8ZkchCOrXrV04Ppec2OnLk269UOwn_jzckVeH9Vhdigb61rYp

You need to find the smallest one to fit the EVAL board connector and prevent any short circuit between the pins.

But as said by @Andrew Neil , it's preferable to use Nucleo board with 0,1 inch pitch (2.54mm) connector.