npub12m5exm2uk3xa674cc5r0hlyvccs5xxn7qv83ezuteefv5972nquq4j4szl/esp32-tollgate/DISPLAY_FIX_PLAN.md, branch feature/display-fix
[no description]
https://upleb.uk/npub12m5exm2uk3xa674cc5r0hlyvccs5xxn7qv83ezuteefv5972nquq4j4szl/esp32-tollgate/atom?h=feature%2Fdisplay-fix
2026-05-18T14:04:57+00:00
Update plan: all display screens verified working on hardware
2026-05-18T14:04:57+00:00
Your Name
you@example.com
2026-05-18T14:04:57+00:00
urn:sha1:7dd532cee475d486552e886dd7173c8853f80b60
BOOT (TollGate starting), READY (QR cycling + price + balance),
ERROR (no upstream) all confirmed working on JC3248W535C_I_Y.
Document QSPI protocol findings and display fix plan
2026-05-18T13:04:33+00:00
Your Name
you@example.com
2026-05-18T13:04:33+00:00
urn:sha1:067a5700e26518d9a3f8bd92966c8957d17f0817
- DISPLAY_FIX_PLAN.md: root cause analysis, byte-order mismatch,
PSRAM cache coherency issue, reference implementations studied
- axs15231b.c: QSPI protocol rewrite with correct ArduinoGFX framing
(cmd=0x02 for regs, cmd=0x32/addr=0x003C00 for pixels)
- display.c: portrait centering for 320x480, render-on-change logic
- Makefile: Board C support (flash-c, lock-c)
- axs15231b.h: QSPI command/address constants
Display shows recognizable text, colors wrong due to byte-swap