Fix ESP32-S3 LCD timing, add diagnostics, scaffold script

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1. **Display timing fixes for ESP32-S3-LCD-4.3**
   - Corrected RGB panel timing parameters (hsync/vsync porch values)
   - **Critical fix**: Set `pclk_active_neg = 1` (required for ST7262 panel)
   - Added explicit PCLK speed of 16MHz
   - These changes fix the blank/unstable display issue on Waveshare 4.3" boards

2. **Added memory diagnostics**
   - Prints free heap and PSRAM at boot
   - Helps verify PSRAM is properly initialized

3. **Duplicate loop() function**
   - The `loop()` function appears twice in the .ino file
   - Contains identical code for touch handling, hold-to-silence, and serial commands
   - This is a build error waiting to happen

4. **New scaffold script**
   - Added comprehensive project scaffolding script (`scaffold.sh`)
   - Generates complete multi-target build structure with shared library and per-board drivers

- **ESP32-S3-LCD-4.3 board should now display correctly** (was likely blank before due to wrong timing)
- **Build will fail** due to duplicate `loop()` definition - needs immediate cleanup
- The scaffold script enables rapid project regeneration/setup for new installations

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This commit is contained in:

David Gwilliam

2026-02-16 17:30:56 -08:00

parent f82dd35e1d

commit 2d0427604c

3 changed files with 1839 additions and 4 deletions

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