Fix 3.5C backlight (GPIO27) and GT911 INT handling per CYD guide.

Wrong BL=21 caused black screen; INT is separate from backlight and stays INPUT after reset.

Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
2026-10-25 18:57:41 +08:00
parent f870f5cebb
commit d19341339b
19 changed files with 465 additions and 56 deletions

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