ESP8266 Community Forum

- Sat Sep 03, 2016 10:34 am #54378 I can't upload any sketch to my esp8266 (specifically esp-01e). It has the version 0.40 of the preinstalled firmware. It is connected via Arduino Uno which is connected with a cable to the pc for the power and the communication. This is how I wire it up:
Vcc --- 3.3v arduino pin
CH-PD --- 3.3v
Gnd --- low
Gpio0 --- low
tx --- rx & rx ---- tx

These are the settings in the tools menu:
Generic Esp8266 module
Flash Mode DIO
Flash size 1M
Reset method: ck
Upload speed 112500

I have tried all the options in the Tools menu, like changing the upload speed, mode, frequency, flash size, reset method, ecc; nothing works. I have also tried different wiring cominations, like pull up or down the RST pin, connect Tx and Rx to different pins (like arduino 10-11 pins); nothing works. All I know is that before pulling gpio0 to low, Arduino Uno must be resetted (and I don't know how). I have searched through a lot of sites and tutorials, but I haven't solved anything. I am here to know if someone could suggest me something.

This is the whole error code that I get when the upload fails:

Code: Select allesptool v0.4.9 - (c) 2014 Ch. Klippel <ck@atelier-klippel.de>
   setting board to ck
   setting baudrate from 115200 to 115200
   setting port from COM1 to COM5
   setting address from 0x00000000 to 0x00000000
   espcomm_upload_file
   espcomm_upload_mem
   setting serial port timeouts to 1000 ms
opening bootloader
resetting board
trying to connect
   flush start
   setting serial port timeouts to 1 ms
   setting serial port timeouts to 1000 ms
   flush complete
   espcomm_send_command: sending command header
   espcomm_send_command: sending command payload
   read 0, requested 1
trying to connect
   flush start
   setting serial port timeouts to 1 ms
   setting serial port timeouts to 1000 ms
   flush complete
   espcomm_send_command: sending command header
   espcomm_send_command: sending command payload
   read 0, requested 1
trying to connect
   flush start
   setting serial port timeouts to 1 ms
   setting serial port timeouts to 1000 ms
   flush complete
   espcomm_send_command: sending command header
   espcomm_send_command: sending command payload
   read 0, requested 1
resetting board
trying to connect
   flush start
   setting serial port timeouts to 1 ms
   setting serial port timeouts to 1000 ms
   flush complete
   espcomm_send_command: sending command header
   espcomm_send_command: sending command payload
   read 0, requested 1
trying to connect
   flush start
   setting serial port timeouts to 1 ms
   setting serial port timeouts to 1000 ms
   flush complete
   espcomm_send_command: sending command header
   espcomm_send_command: sending command payload
   read 0, requested 1
trying to connect
   flush start
   setting serial port timeouts to 1 ms
   setting serial port timeouts to 1000 ms
   flush complete
   espcomm_send_command: sending command header
   espcomm_send_command: sending command payload
   read 0, requested 1
resetting board
trying to connect
   flush start
   setting serial port timeouts to 1 ms
   setting serial port timeouts to 1000 ms
   flush complete
   espcomm_send_command: sending command header
   espcomm_send_command: sending command payload
   read 0, requested 1
trying to connect
   flush start
   setting serial port timeouts to 1 ms
   setting serial port timeouts to 1000 ms
   flush complete
   espcomm_send_command: sending command header
   espcomm_send_command: sending command payload
   read 0, requested 1
trying to connect
   flush start
   setting serial port timeouts to 1 ms
   setting serial port timeouts to 1000 ms
   flush complete
   espcomm_send_command: sending command header
   espcomm_send_command: sending command payload
   read 0, requested 1
warning: espcomm_sync failed
error: espcomm_open failed
error: espcomm_upload_mem failed
error: espcomm_upload_mem failed


p.s. Sorry for my bad english