Stability round 2: WIFI_PS_NONE + 10MHz SDIO

1-bit bus alone did not stop the sdio_write timeout wedge (recurred at ~5min uptime). Modem power save is the new prime suspect: the C6 napping mid-SDIO-transaction matches the minutes-scale periodicity. Always-powered appliance -> PS_NONE costs ~50mW and removes the entire failure class if correct. SDIO clock also halved to 10MHz. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-15 01:29:33 +02:00
parent 7943e0e72a
commit e5c8a38f94
2 changed files with 3 additions and 1 deletions
@@ -83,6 +83,8 @@ static void wifi_event(void *arg, esp_event_base_t base, int32_t id, void *data)
    } else if (base == IP_EVENT && id == IP_EVENT_STA_GOT_IP) {
        ip_event_got_ip_t *ev = (ip_event_got_ip_t *)data;
        s_got_ip = true;
+        /* always-powered appliance: modem sleep wedges the hosted SDIO link */
+        esp_wifi_set_ps(WIFI_PS_NONE);
        ESP_LOGI(TAG, "got ip " IPSTR, IP2STR(&ev->ip_info.ip));
        setenv("TZ", "CET-1CEST,M3.5.0,M10.5.0/3", 1);
        tzset();