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AkshayMR
Associate II
August 20, 2024
Solved

Regarding STM32H753I-EVAL2 board

  • August 20, 2024
  • 2 replies
  • 1394 views

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?

Best answer by mƎALLEm

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.

2 replies

mƎALLEm
mƎALLEm
Technical Moderator
August 20, 2024

Use this kind of connectors:

SofLit_2-1724146435071.png

 

 

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A
AkshayMRAuthor
Associate II
August 22, 2024

What are these connectors called?

Andrew Neil
Andrew Neil
Super User
August 22, 2024

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.

A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.
    Andrew Neil
    Andrew Neil
    Super User
    August 20, 2024

    The User Manual gives the Samtec part number:

    AndrewNeil_0-1724148302285.png

    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 ...

    A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.
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