Fix ESP32-Solo WDT on HTTP OTA update

Author: arendst

cores/esp32/Esp.cpp

@@ -42,7 +42,7 @@ extern "C" {
 #elif CONFIG_IDF_TARGET_ESP32C3
 #include "esp32c3/rom/spi_flash.h"
 #define ESP_FLASH_IMAGE_BASE 0x0000     // Esp32c3 is located at 0x0000
-#else 
+#else
 #error Target CONFIG_IDF_TARGET is not supported
 #endif
 #else // ESP32 Before IDF 4.0
@@ -187,7 +187,7 @@ static uint32_t sketchSize(sketchSize_t response) {
         return data.image_len;
     }
 }
-    
+
 uint32_t EspClass::getSketchSize () {
     return sketchSize(SKETCH_SIZE_TOTAL);
 }
@@ -226,6 +226,8 @@ String EspClass::getSketchMD5()
         md5.add(buf.get(), readBytes);
         lengthLeft -= readBytes;
         offset += readBytes;
+
+        delay(1);  // Fix solo WDT
     }
     md5.calculate();
     result = md5.toString();
@@ -376,17 +378,17 @@ bool EspClass::flashRead(uint32_t offset, uint32_t *data, size_t size)
     return spi_flash_read(offset, (uint32_t*) data, size) == ESP_OK;
 }
 
-bool EspClass::partitionEraseRange(const esp_partition_t *partition, uint32_t offset, size_t size) 
+bool EspClass::partitionEraseRange(const esp_partition_t *partition, uint32_t offset, size_t size)
 {
     return esp_partition_erase_range(partition, offset, size) == ESP_OK;
 }
 
-bool EspClass::partitionWrite(const esp_partition_t *partition, uint32_t offset, uint32_t *data, size_t size) 
+bool EspClass::partitionWrite(const esp_partition_t *partition, uint32_t offset, uint32_t *data, size_t size)
 {
     return esp_partition_write(partition, offset, data, size) == ESP_OK;
 }
 
-bool EspClass::partitionRead(const esp_partition_t *partition, uint32_t offset, uint32_t *data, size_t size) 
+bool EspClass::partitionRead(const esp_partition_t *partition, uint32_t offset, uint32_t *data, size_t size)
 {
     return esp_partition_read(partition, offset, data, size) == ESP_OK;
 }

libraries/HTTPUpdate/src/HTTPUpdate.cpp

@@ -199,9 +199,6 @@ HTTPUpdateResult HTTPUpdate::handleUpdate(HTTPClient& http, const String& curren
     if(sketchMD5.length() != 0) {
         http.addHeader("x-ESP32-sketch-md5", sketchMD5);
     }
-
-    delay(1);  // Fix solo WDT
-
     // Add also a SHA256
     String sketchSHA256 = getSketchSHA256();
     if(sketchSHA256.length() != 0) {