first commit

CheckFlashConfig/CheckFlashConfig.ino

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+/*
+  ESP8266 CheckFlashConfig by Markus Sattler
+
+  This sketch tests if the EEPROM settings of the IDE match to the Hardware
+
+*/
+
+void setup(void) {
+  Serial.begin(115200);
+}
+
+void loop() {
+
+  uint32_t realSize = ESP.getFlashChipRealSize();
+  uint32_t ideSize = ESP.getFlashChipSize();
+  FlashMode_t ideMode = ESP.getFlashChipMode();
+
+  Serial.printf("Flash real id:   %08X\n", ESP.getFlashChipId());
+  Serial.printf("Flash real size: %u bytes\n\n", realSize);
+
+  Serial.printf("Flash ide  size: %u bytes\n", ideSize);
+  Serial.printf("Flash ide speed: %u Hz\n", ESP.getFlashChipSpeed());
+  Serial.printf("Flash ide mode:  %s\n", (ideMode == FM_QIO ? "QIO" : ideMode == FM_QOUT ? "QOUT" : ideMode == FM_DIO ? "DIO" : ideMode == FM_DOUT ? "DOUT" : "UNKNOWN"));
+
+  if (ideSize != realSize) {
+    Serial.println("Flash Chip configuration wrong!\n");
+  } else {
+    Serial.println("Flash Chip configuration ok.\n");
+  }
+
+  delay(5000);
+}