ESP8266 Community Forum

- Wed Aug 03, 2016 9:52 pm #52063 Hello folks,

I am at a lot of time trying to figure out what's going on with my ESP01 unsuccessfully , I will describe the problem , I try to upload a sketch via COM6 port from a FTDI-USB adapter, but always gives the following error:

Sketch uses 221,995 bytes (51%) of program storage space. Maximum is 434,160 bytes.
Global variables use 31,568 bytes (38%) of dynamic memory, leaving 50,352 bytes for local variables. Maximum is 81,920 bytes.
C:\Users\root\AppData\Local\Arduino15\packages\esp8266\tools\esptool\0.4.9/esptool.exe -vv -cd ck -cb 115200 -cp COM6 -ca 0x00000 -cf C:\Users\root\AppData\Local\Temp\buildde9605d9d67ae2595f4f5b9646f4a46e.tmp/firstConnection2.ino.bin
esptool 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 COM6
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
serialport_receive_C0: BB instead of C0
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
serialport_receive_C0: 36 instead of C0
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
serialport_receive_C0: BF instead of C0
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
serialport_receive_C0: BB instead of C0
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
serialport_receive_C0: B7 instead of C0
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
serialport_receive_C0: B7 instead of C0
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
serialport_receive_C0: 36 instead of C0
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
serialport_receive_C0: 32 instead of C0
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
serialport_receive_C0: BB instead of C0
warning: espcomm_sync failed
error: espcomm_open failed
error: espcomm_upload_mem failed
error: espcomm_upload_mem failed



Someone can give me a hand here ?

I'm using an external source of 3.3V to power the ESP .

- Thu Aug 04, 2016 6:15 am #52097 Any thoughts?

- Sun Aug 14, 2016 10:01 am #52931 What are you using for the Ext 3.3 V supply?
Have you connected the grounds between the 3.3 v supply and the ground of the FTDI?
Picture please