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Kneepatch
Senior
July 11, 2022
Solved

Black Screen on STM32F469I-DISCO with TouchGFX and DAC1 and DAC2 Enabled.

  • July 11, 2022
  • 2 replies
  • 2029 views

My STM32F469I-DISCO does not fully initialize when I enable DAC1 and DAC2 on a new TouchGFX 4.20.0 project.

0693W00000QKqqGQAT.pngIf I don't use TouchGFX, but just the latest version of STMCubeIDE (1.1) then everything works fine. What am I missing here? I've been able to use the DACs and TouchGFX on this development board in the past.

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Best answer by Kneepatch

Yes, latest IDE being 1.10.1.

Turns out that I didn't have enough heap and stack memory. Increased both and now I get DAC and the touchscreen. Thanks for your help!

2 replies

MM..1
Super User
July 11, 2022

Debug or compare generated code and locate diff or ... and latest IDE you mean 1.10.1

Kneepatch
KneepatchAuthorBest answer
Senior
July 16, 2022

Yes, latest IDE being 1.10.1.

Turns out that I didn't have enough heap and stack memory. Increased both and now I get DAC and the touchscreen. Thanks for your help!

-Kneepatch