Add option to disable brownout detector (#1784)

* Update defines.h

* Update main.cpp

code/include/defines.h

@@ -17,6 +17,8 @@
     // server_tflite.cpp
     //#define TASK_ANALYSIS_ON
 
+    // ######## debug options : 
+    //#define DISABLE_BROWNOUT_DETECTOR
 
     /* Uncomment this to keep the logfile open for appending.
     * If commented out, the logfile gets opened/closed for each log measage (old behaviour) */
@@ -25,7 +27,7 @@
 
     //compiler optimization for tflite-micro-esp-examples
     #define XTENSA
-    #define CONFIG_IDF_TARGET_ARCH_XTENSA
+    //#define CONFIG_IDF_TARGET_ARCH_XTENSA //not needed with platformio/espressif32 @ 5.2.0
 
 
     //ClassControllCamera + ClassFlowMakeImage + connect_wlan + main

code/main/main.cpp

@@ -43,6 +43,11 @@
     #include "softAP.h"
 #endif //ENABLE_SOFTAP
 
+#ifdef DISABLE_BROWNOUT_DETECTOR
+    #include "soc/soc.h" 
+    #include "soc/rtc_cntl_reg.h" 
+#endif
+
 extern const char* GIT_TAG;
 extern const char* GIT_REV;
 extern const char* GIT_BRANCH;
@@ -145,6 +150,10 @@ extern "C" void app_main(void)
 {
     TickType_t xDelay;
     
+#ifdef DISABLE_BROWNOUT_DETECTOR
+    WRITE_PERI_REG(RTC_CNTL_BROWN_OUT_REG, 0); //disable brownout detector
+#endif
+
     ESP_LOGI(TAG, "\n\n\n\n\n"); // Add mark on log to see when it restarted
     
     PowerResetCamera();