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nicolas
Senior II
June 19, 2025
Question

STEVAL-STWINBX1 test points

  • June 19, 2025
  • 2 replies
  • 521 views

The STEVAL-STWINBX1 has 12 test points but there is no serigraphy for identifying them.

Also in the UM2965, there is no information about the position of each test points.

Where can i find this information ?

2 replies

David SIORPAES
ST Employee
June 26, 2025

Hello, you can refer to the board schematics available here 

https://www.st.com/resource/en/schematic_pack/steval-stwinbox1-schematic.pdf

Regards,

David

 

nicolas
nicolasAuthor
Senior II
June 26, 2025

Thanks for the reply but the schematics is of no help, I need to know where the test points are on the PCB.

Andrew Neil
Super User
June 26, 2025

Look on the 'CAD Resource' tab of the Product Page:

https://www.st.com/en/evaluation-tools/steval-stwinbx1.html#cad-resources

The PCB design is there

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.
David SIORPAES
ST Employee
June 26, 2025

Not  sure there is a better method, but please refer to the file cds2f_20201281_steval-stwbxcs1_v4.txt. Here the test points coordinates are reported:

S!TP4!IO!TMP-386!!!!PACKAGE!TPS-0100!YES!270.000!-59.7185!28.0967!TPS!!!
S!TP5!IO!TMP-386!!!!PACKAGE!TPS-0100!YES!270.000!-53.0373!41.1330!TPS!!!
S!TP6!IO!TMP-386!!!!PACKAGE!TPS-0100!YES!270.000!-53.6082!30.5240!TPS!!!
S!TP7!IO!TMP-386!!!!PACKAGE!TPS-0100!NO!0.000!-10.5724!16.0919!TPS!!!
S!TP8!IO!TMP-386!!!!PACKAGE!TPS-0100!YES!0.000!-58.8218!36.2692!TPS!!!
S!TP9!IO!TMP-386!!!!PACKAGE!TPS-0100!YES!0.000!-28.6044!38.3840!TPS!!!
S!TP12!IO!TMP-386!!!!PACKAGE!TPS-0100!NO!0.000!-47.5286!37.3060!TPS!!!
S!TP10!IO!TMP-386!!!!PACKAGE!TPS-0100!YES!0.000!-53.9978!6.8816!TPS!!!
S!TP11!IO!TMP-386!!!!PACKAGE!TPS-0100!YES!0.000!-46.0378!6.8281!TPS!!!

Then you can open the soldertop and solderbottom layers with 'gerbv' to map the test points on the PCB.

E.g.: TP5 (-53.0373!41.1330) is located here 

DavidSIORPAES_0-1750949536065.png

David

 

nicolas
nicolasAuthor
Senior II
June 26, 2025

Sorry but I am a software engineer, i don't want spend lots of time trying thing with application i don't know how they works.

I have already found the test points i needed with a multimeter.