ESP8266 Community Forum

- Sat Aug 27, 2016 5:50 pm #53940 Does anyone know where I can get information on the boot error codes for the ESP-12E? I uploaded the ESP blink sketch from the Arduino IDE and nothing happened. I tried uploading the Wifi sketch and the serial monitor repeatedly prints:

ets Jan 8 2013,rst cause:4, boot mode:(3,0)

wdt reset
load 0x4010f000, len 1384, room 16
tail 8
chksum 0x2d
csum 0x2d
v09f0c112
~ld

From what I have found, this is a watchdog timer reset, the 3 in the "boot mode:(3,0)" means that's its still in flash mode. So how do I get a NodeMCU to start out of flash mode? Or am I reading the boot mode errors wrong?

- Mon Aug 29, 2016 4:55 am #54046 I tried adding wdt_disable(); but I'm getting the same result.

- Mon Aug 29, 2016 6:12 am #54053 For boot messages and modes please check https://github.com/esp8266/Arduino/blob ... -and-modes
The number "3" in boot mode:(3,0) means execution of program from flash (nothing wrong here).

- Fri Jun 02, 2017 9:19 am #66641

Does anyone know where I can get information on the boot error codes for the ESP-12E? I uploaded the ESP blink sketch from the Arduino IDE and nothing happened. I tried uploading the Wifi sketch and the serial monitor repeatedly prints:

ets Jan 8 2013,rst cause:4, boot mode:(3,0)

wdt reset
load 0x4010f000, len 1384, room 16
tail 8
chksum 0x2d
csum 0x2d
v09f0c112
~ld

From what I have found, this is a watchdog timer reset, the 3 in the "boot mode:(3,0)" means that's its still in flash mode. So how do I get a NodeMCU to start out of flash mode? Or am I reading the boot mode errors wrong?

This problem related to power supply, you must prepare 3.3V good one for esp12e
I made instruction to program esp12e via Arduino IDE, you can prefer:
http://engineer2you.blogspot.com/2017/05/esp12e-arduino-programming.html