STM32N6570-DK inconsistency between schematic (MB1939) and .ioc file by TouchGfx

Roshko · ‎2025-11-27

I was examining the .ioc file from TouchGFX project and found out that LTDC_G0 is on PF5. However in the schematic provided for STM32N6570-DK (MB1939) LTDC_G0 is on PG12. I suspect the provided schematic is the correct one, and an error in the .ioc was never spotted as it is the LSB, but can somebody confirm this is the case?

Mike_ST · ‎2025-11-28

Hello,

thank you for spotting that, the schematic can't be lying, or at least no contradiction should exists between the ioc file and the schematic.

Please make the update in your project, maybe the LSB difference won't be noticable, but at least the G0 signal won't be landing on the wrong pin.

I entered a ticket in our database (#222745).

I'm going to move the ticket in TOUCH_GFX section.

View solution in original post

Mike_ST · ‎2025-11-28

Hello,

thank you for spotting that, the schematic can't be lying, or at least no contradiction should exists between the ioc file and the schematic.

Please make the update in your project, maybe the LSB difference won't be noticable, but at least the G0 signal won't be landing on the wrong pin.

I entered a ticket in our database (#222745).

I'm going to move the ticket in TOUCH_GFX section.

Mike_ST · ‎2025-12-01

Hello,

Could give us the name of the reference project where you've seen the problem ?

We have several reference projects on the STM32N6, we'd like to make sure we fix the right one.

Again, thank you.

Roshko · ‎2025-12-01

Hello Mike,
I've found the issue with a blank "Create new" project and also "TouchGFX Demo 7", but I suspect it might be the case with other STM32N6570-DK projects too.