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perf(ui-lvgl): lower clock when idle, fewer redraws, wake on BLE frames

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- CPU at 80 MHz with the screen on after 2 s without touch or animation;
  a touch restores the full clock before its frame is drawn
- setText(): periodic refreshes no longer redraw unchanged labels
  (status bar, Home, lock, Diag, GPS, compass, clock, map, nav, nearby)
- map markers kept across the 3 s rebuild when unchanged
- app connected: the loop blocks until a BLE frame arrives
  (serialFrameArrived / hasPendingFrames) instead of polling every 2 ms
- PSRAM: boot frame sprite and the HTTP response buffer released

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Jakub
2026-09-29 11:51:18 +02:00
co-authored by Claude Opus 5.5
parent bc266a4f5c
commit 4ab9d949ec
19 changed files with 188 additions and 82 deletions
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examples/companion_radio/ui-lvgl/DiagScreen.h
+3 -3
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@@ -91,13 +91,13 @@ static void setLive(int i, const diag::Row& r) {
const char* slash = strchr(r.value, '/');
char a[12];
snprintf(a, sizeof(a), "%.*s", slash ? (int)(slash - r.value) : (int)strlen(r.value), r.value);
lv_label_set_text(lv.in, a);
lv_label_set_text(lv.out, slash ? slash + 1 : "");
setText(lv.in, a);
setText(lv.out, slash ? slash + 1 : "");
return;
}
char v[40];
showValue(r.label, r.value, v, sizeof(v));
lv_label_set_text(lv.val, v);
setText(lv.val, v);
if (!strcmp(r.label, "Errors")) lv_obj_set_style_text_color(lv.val, lv_color_hex(strcmp(r.value, "OK") ? theme::FAIL : theme::OK), 0);
}