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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/GpsScreen.h
+7 -7
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@@ -324,13 +324,13 @@ void UITask::refreshGps() {
char pos[32] = "", alt[16] = "", speed[16] = "", dop[32] = "";
bool fix = false;
if (!g) {
lv_label_set_text(s_status, "Not available");
setText(s_status, "Not available");
lv_obj_set_style_text_color(s_status, lv_color_hex(theme::TEXT_MUTED), 0);
} else if (off) {
lv_label_set_text(s_status, "GPS is off");
setText(s_status, "GPS is off");
lv_obj_set_style_text_color(s_status, lv_color_hex(theme::TEXT_MUTED), 0);
} else if (!data) {
lv_label_set_text(s_status, "No data");
setText(s_status, "No data");
lv_obj_set_style_text_color(s_status, lv_color_hex(theme::FAIL), 0);
#if defined(SEEED_WIO_TRACKER_L2)
snprintf(used, sizeof(used), "Nothing from the receiver (%lu B)", (unsigned long)gps.rxChars());
@@ -342,10 +342,10 @@ void UITask::refreshGps() {
for (int i = 0; i < s_n; i++) { if (s_sats[i].snr >= 0) tracked++; if (s_used_flag[i]) used_n++; }
fix = g->hasFix();
if (fix) {
lv_label_set_text(s_status, g->fix_mode == 2 ? "2D fix" : "3D fix");
setText(s_status, g->fix_mode == 2 ? "2D fix" : "3D fix");
lv_obj_set_style_text_color(s_status, lv_color_hex(theme::OK), 0);
} else {
lv_label_set_text(s_status, "Searching");
setText(s_status, "Searching");
lv_obj_set_style_text_color(s_status, lv_color_hex(theme::ACCENT), 0);
}
snprintf(used, sizeof(used), "%d of %d used", fix ? (used_n ? used_n : g->sats_used) : 0, s_n);
@@ -362,7 +362,7 @@ void UITask::refreshGps() {
}
if (fix && g->hdop > 0) snprintf(dop, sizeof(dop), "H %.1f V %.1f P %.1f", g->hdop, g->vdop, g->pdop);
}
lv_label_set_text(s_used, used);
setText(s_used, used);
infoSet(s_inview, inview);
infoSet(s_search, search);
infoSet(s_ttff, ttff);
@@ -378,7 +378,7 @@ void UITask::refreshGps() {
int n = 0, u = 0;
for (int i = 0; i < s_n; i++) if (s_sats[i].sys == k) { n++; if (s_used_flag[i]) u++; }
if (!n) { lv_obj_add_flag(s_sys_pill[k], LV_OBJ_FLAG_HIDDEN); continue; }
lv_label_set_text_fmt(s_sys_pill[k], "%c %s %d/%d", GpsSky::sysLetter(k), GpsSky::sysName(k), u, n);
setTextFmt(s_sys_pill[k], "%c %s %d/%d", GpsSky::sysLetter(k), GpsSky::sysName(k), u, n);
lv_obj_remove_flag(s_sys_pill[k], LV_OBJ_FLAG_HIDDEN);
}