football2801/pictureFrame-firmware
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fix: harden firmware NVS persistence, WDT, and 304 epd_sleep

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Three bugs fixed:
- NVS img_id now written before epd_init/draw; new draw_needed flag in NVS
  survives power-loss mid-refresh so next boot re-draws from LittleFS instead
  of showing stale content
- epd_sleep() now only called when display was initialized this cycle,
  preventing a 60 s wait_busy() timeout on every 304 poll
- esp_task_wdt_reset() added to wait_busy() loop so the ~20 s 6-color
  refresh no longer triggers the task watchdog

Also extracts normal_operation into operation.h template and adds
a native PlatformIO test suite (16 tests) covering the full response matrix.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Matt Edholm
2026-05-06 12:09:37 -04:00
parent 711ad43d79
commit 87af8cb030
23 changed files with 973 additions and 88 deletions
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src/config.h
+7 -3
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@@ -25,12 +25,16 @@
// ── NVS ──────────────────────────────────────────────────────────────────────
#define NVS_NAMESPACE "pf"
#define NVS_KEY_SSID "ssid"
#define NVS_KEY_PASS "pass"
#define NVS_KEY_SSID "ssid"
#define NVS_KEY_PASS "pass"
#define NVS_KEY_IMG_ID "img_id"
#define NVS_KEY_DRAW_NEEDED "draw"
// ── Network ──────────────────────────────────────────────────────────────────
#define APP_BASE_URL "https://pictureframe.edholm.me"
#define AP_IP "192.168.4.1"
#define WIFI_TIMEOUT_MS 30000
#define FETCH_INTERVAL_MS 900000 // 15 min deep sleep between polls
#ifndef FETCH_INTERVAL_MS
#define FETCH_INTERVAL_MS 60000 // 1 min deep sleep between polls
#endif
#define IMAGE_PATH "/img.bin"