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PCevo.1
Associate II
April 4, 2023
Solved

LTDC getting underrun interrupt when not enabled

  • April 4, 2023
  • 2 replies
  • 1439 views

Trying to bring up a bootloader. On the last step and having difficulty getting the screen working. All the LTDC initialization looks ok and am enabled the line interrupt and the transfer error interrupt. When enabling the LTDC getting slammed with underrun interrupts. Even if tweaking the handle to automatically clean the underrun interrupt they just keep coming. Anybody run into this or any suggestions?

This topic has been closed for replies.
Best answer by PCevo.1

The issue turned out to be with the hardware

2 replies

KDJEM.1
Technical Moderator
April 11, 2023

Hello @PCevo.1​ ,

Could you please provide more details on the issue:

  • Which STM32 product you are using?
  • Are you using an ST example?

If not, I advise you to start with an available example in the package.

Thank you.

Kaouthar

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
PCevo.1
PCevo.1AuthorBest answer
Associate II
April 20, 2023

The issue turned out to be with the hardware