Fix initial baudrate

Fix initial baudrate (#7447)

tasmota/settings.h

@@ -689,11 +689,12 @@ typedef struct {
   power_t       power;                     // 2AC
   EnergyUsage   energy_usage;              // 2B0
   unsigned long nextwakeup;                // 2C8
-  uint8_t       free_004[4];               // 2CC
+  uint32_t      baudrate;                  // 2CC
   uint32_t      ultradeepsleep;            // 2D0
   uint16_t      deepsleep_slip;            // 2D4
 
-  uint8_t       free_022[22];              // 2D6
+  uint8_t       free_2d6[22];              // 2D6
+
                                            // 2EC - 2FF free locations
 } TRtcSettings;
 TRtcSettings RtcSettings;

tasmota/settings.ino

@@ -38,6 +38,7 @@ uint32_t GetRtcSettingsCrc(void)
 
 void RtcSettingsSave(void)
 {
+  RtcSettings.baudrate = Settings.baudrate * 300;
   if (GetRtcSettingsCrc() != rtc_settings_crc) {
     RtcSettings.valid = RTC_MEM_VALID;
 #ifdef ESP8266
@@ -50,8 +51,8 @@ void RtcSettingsSave(void)
   }
 }
 
-void RtcSettingsLoad(void)
+bool RtcSettingsLoad(void) {
-{
+  bool was_read_valid = true;
 #ifdef ESP8266
   ESP.rtcUserMemoryRead(100, (uint32_t*)&RtcSettings, sizeof(RtcSettings));  // 0x290
 #endif  // ESP8266
@@ -59,6 +60,7 @@ void RtcSettingsLoad(void)
   RtcSettings = RtcDataSettings;
 #endif  // ESP32
   if (RtcSettings.valid != RTC_MEM_VALID) {
+    was_read_valid = false;
     memset(&RtcSettings, 0, sizeof(RtcSettings));
     RtcSettings.valid = RTC_MEM_VALID;
     RtcSettings.energy_kWhtoday = Settings.energy_kWhtoday;
@@ -68,9 +70,12 @@ void RtcSettingsLoad(void)
       RtcSettings.pulse_counter[i] = Settings.pulse_counter[i];
     }
     RtcSettings.power = Settings.power;
+//    RtcSettings.baudrate = Settings.baudrate * 300;
+    RtcSettings.baudrate = APP_BAUDRATE;
     RtcSettingsSave();
   }
   rtc_settings_crc = GetRtcSettingsCrc();
+  return was_read_valid;
 }
 
 bool RtcSettingsValid(void)

tasmota/support_tasmota.ino

@@ -1495,13 +1495,6 @@ void GpioInit(void)
   }
   SetModuleType();
 
-  TasmotaGlobal.module_changed = (Settings.module != Settings.last_module);
-  if (TasmotaGlobal.module_changed) {
-    Settings.baudrate = APP_BAUDRATE / 300;
-    Settings.serial_config = TS_SERIAL_8N1;
-    SetSerialBegin();
-  }
-
 //  AddLog_P(LOG_LEVEL_DEBUG, PSTR("DBG: Used GPIOs %d"), GPIO_SENSOR_END);
 
 #ifdef ESP8266

tasmota/tasmota.ino

@@ -215,22 +215,27 @@ void setup(void) {
 #endif
   RtcRebootSave();
 
+  if (RtcSettingsLoad()) {
+    uint32_t baudrate = (RtcSettings.baudrate / 300) * 300;  // Make it a valid baudrate
+    if (baudrate) { TasmotaGlobal.baudrate = baudrate; }
+  }
   Serial.begin(TasmotaGlobal.baudrate);
+  Serial.println();
 //  Serial.setRxBufferSize(INPUT_BUFFER_SIZE);  // Default is 256 chars
   TasmotaGlobal.seriallog_level = LOG_LEVEL_INFO;  // Allow specific serial messages until config loaded
 
-  snprintf_P(TasmotaGlobal.version, sizeof(TasmotaGlobal.version), PSTR("%d.%d.%d"), VERSION >> 24 & 0xff, VERSION >> 16 & 0xff, VERSION >> 8 & 0xff);  // Release version 6.3.0
-  if (VERSION & 0xff) {  // Development or patched version 6.3.0.10
-    snprintf_P(TasmotaGlobal.version, sizeof(TasmotaGlobal.version), PSTR("%s.%d"), TasmotaGlobal.version, VERSION & 0xff);
-  }
-  // Thehackbox inserts "release" or "commit number" before compiling using sed -i -e 's/PSTR("(%s)")/PSTR("(85cff52-%s)")/g' tasmota.ino
-  snprintf_P(TasmotaGlobal.image_name, sizeof(TasmotaGlobal.image_name), PSTR("(%s)"), CODE_IMAGE_STR);  // Results in (85cff52-tasmota) or (release-tasmota)
-
   SettingsLoad();
   SettingsDelta();
 
   OsWatchInit();
 
+  TasmotaGlobal.module_changed = (Settings.module != Settings.last_module);
+  if (TasmotaGlobal.module_changed) {
+    Settings.baudrate = APP_BAUDRATE / 300;
+    Settings.serial_config = TS_SERIAL_8N1;
+  }
+  SetSerialBegin();
+
   if (1 == RtcReboot.fast_reboot_count) {  // Allow setting override only when all is well
     UpdateQuickPowerCycle(true);
   }
@@ -281,6 +286,13 @@ void setup(void) {
     }
   }
 
+  snprintf_P(TasmotaGlobal.version, sizeof(TasmotaGlobal.version), PSTR("%d.%d.%d"), VERSION >> 24 & 0xff, VERSION >> 16 & 0xff, VERSION >> 8 & 0xff);  // Release version 6.3.0
+  if (VERSION & 0xff) {  // Development or patched version 6.3.0.10
+    snprintf_P(TasmotaGlobal.version, sizeof(TasmotaGlobal.version), PSTR("%s.%d"), TasmotaGlobal.version, VERSION & 0xff);
+  }
+  // Thehackbox inserts "release" or "commit number" before compiling using sed -i -e 's/PSTR("(%s)")/PSTR("(85cff52-%s)")/g' tasmota.ino
+  snprintf_P(TasmotaGlobal.image_name, sizeof(TasmotaGlobal.image_name), PSTR("(%s)"), CODE_IMAGE_STR);  // Results in (85cff52-tasmota) or (release-tasmota)
+
   Format(TasmotaGlobal.mqtt_client, SettingsText(SET_MQTT_CLIENT), sizeof(TasmotaGlobal.mqtt_client));
   Format(TasmotaGlobal.mqtt_topic, SettingsText(SET_MQTT_TOPIC), sizeof(TasmotaGlobal.mqtt_topic));
   if (strchr(SettingsText(SET_HOSTNAME), '%') != nullptr) {