ESP8266 01 reset issue

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1

Hi all,

I am to a new project using arduinouno and Esp8266-01 . Esp module was working perfectly at the first time and was responding to the AT commands from the arduino serial monitor. But after updating firm ware on Esp module the thing is not responding , and also the baud rate is changed from 115200 to 74880 . when connecting to the serial port it is showing some thing like

ets Jan 8 2013,rst cause:2, boot mode:(3,6)

load 0x40100000, len 2408, room 16
tail 8
chksum 0xef
load 0x00000000, len 0, room 0
tail 0
chksum 0xef
load 0x00000000, len 0, room 8
tail 0
chksum 0xef
csum 0xef
csum err
ets_main.c

i tried to reflash several time ,but no hope. please help me to go through the issue.

Thanks,

2

From the status messages, it looks like it restarted because of the reset pin. What have you got connected to your ESP8266 ?

Documentation on "rst cause" and "boot mode" · Issue #1013 · esp8266/Arduino · GitHub :

reset causes:
    0: 
    1: normal boot
    2: reset pin
    3: software reset
    4: watchdog reset

boot device:
    0:
    1: ram
    3: flash
3

I have found https://www.allaboutcircuits.com/projects/flashing-the-ESP-01-firmware-to-SDK-v2.0.0-is-easier-now/ to be terrific tutorial on flashing the ESP-01 module.

Of course, that is assuming you are flashing with AT firmware.

Who knows what you are using?

Also, it is very important to provide a reliable 3.3V power for the ESP-01 module.
The 3.3V from the Arduino Uno is not good enough!

.