Skip to content

Fix truncated LCD message during firmware update#28

Open
miketlk wants to merge 1 commit intocryptoadvance:masterfrom
miketlk:fix-banner-text-truncation
Open

Fix truncated LCD message during firmware update#28
miketlk wants to merge 1 commit intocryptoadvance:masterfrom
miketlk:fix-banner-text-truncation

Conversation

@miketlk
Copy link
Copy Markdown
Contributor

@miketlk miketlk commented Mar 25, 2026

Summary

Fix truncated firmware update message on STM32F469 Discovery display (“WARE UPGRADE” instead of “FIRMWARE UPGRADE”) caused by unreliable LCD register writes.

Related Issues

Changes

  • Add small safety delays after LCD register writes to avoid race conditions in the display controller.

Testing

  • Built with original Arm GNU Toolchain 9-2019-q4-major.
  • Verified on two hardware revisions.
  • Message is now rendered fully and consistently.

Checklist

  • Code builds without errors
  • Code reviewed for security and edge cases

@miketlk miketlk self-assigned this Mar 25, 2026
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet

Projects

None yet

Development

Successfully merging this pull request may close these issues.

1 participant