STM32CubeMX does not have a board model for the STM32F429i-DISC1. Are the pinouts for the DISC1 the same as the DISC?

[SGill.3]

I know that the touch screen is reversed in one direction from the Disc to the Disc1. Are there any other differences? I want to use a couple of I/O pins for a project and need to know which ones are available.

[Peter BENSCH]

Welcome, @SGill.3​ to the community!

the STM32F429I-DISC1 is almost identical to the STM32F429I-DISCO, except:

• on STM32F429I-DISCO (obsolete)
  • SB11, 15 (RX,TX) = OFF, so so VCP (Virtual COM Port) is disabled by default
  • U2 (ST-LINK/V2) = STM32F103C8T6 (64K Flash)
• on STM32F429I-DISC1:
  • SB11, 15 (RX,TX) = ON, so so VCP is enabled by default
  • U2 (ST-LINK/V2-B) = STM32F103CBT6 (128K Flash)

From TouchGFX's point of view, both boards are otherwise identical.

Does it answer your question?

Regards

/Peter

[waclawek.jan]

@Peter BENSCH​ ,

> From TouchGFX's point of view, both boards are otherwise identical.

No, they are not - as @SGill.3​ said, the touchscreen is mirrored in the longer axis.

https://community.st.com/s/question/0D73W000001NTvzSAG/detail?s1oid=00Db0000000YtG6&t=1643412206102&s1nid=0DB0X000000DYbd&emkind=chatterCommentNotification&s1uid=0050X000007vsKk&emtm=1643407322266&fromEmail=1&s1ext=0

If you have both versions at hand, you can try the simple "doodle" program I gave link to in that thread; and also the test program generated by TouchGFX, posted by Raymond in the parallel thread https://www.eevblog.com/forum/microcontrollers/need-hex-file-to-test-touch-screen-on-stm32f429-discovery-board/ (where dmendesf confirmed the flip).

JW

[Peter BENSCH]

@Community member​

Thanks for the information. Unfortunately, I don't have the new version at hand, so I can't check or confirm this directly. As soon as I have one, I'll be happy to do so.

Regards

/Peter

[waclawek.jan]

Hi Peter,

Apparently, TouchGFX crew have the new version and build for that, so you should see the "mirroring" effect on the old version - just for the fun of it, you can try one of the firmwares posted by Raymond on eevblog.

Jan

#TouchGFX​ 

[SGill.3]

The information about the pins is what I was looking for.

I have asked before if there was someway to flip the touch screen in the software, but did not get a good answer.

SG