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Topic: can somebody help me with error: espcomm_upload_mem failed (Read 173 times) previous topic - next topic

jiha

im using arduino ide 1.8.9, i use esp8266. i try to upload it many times but it still show the same error.
Code: [Select]
Sketch uses 363108 bytes (34%) of program storage space. Maximum is 1044464 bytes.
Global variables use 30080 bytes (36%) of dynamic memory, leaving 51840 bytes for local variables. Maximum is 81920 bytes.
C:\Users\User\AppData\Local\Arduino15\packages\esp8266\tools\esptool\2.5.0-3-20ed2b9/esptool.exe -vv -cd nodemcu -cb 115200 -cp COM13 -ca 0x00000 -cf C:\Users\User\AppData\Local\Temp\arduino_build_672315/UTHMstaffavailability.ino.bin
esptool v0.4.13-1-gf80ae31 - (c) 2014 Ch. Klippel <ck@atelier-klippel.de>
setting board to nodemcu
setting baudrate from 115200 to 115200
setting port from COM1 to COM13
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
An error occurred while uploading the sketch
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

Juraj

is the esp8266 in flashing mode activated by io 0 pulled down at boot?
what esp8266 module/board you use and how did you wire it and connect to USB?

jiha

i use nodemcu ep8266, i connect esp8266 to multiplexer 3-to-8 Line Decoder

jiha

'is the esp8266 in flashing mode activated by io 0 pulled down at boot?'
i'm not sure about this part, how to check ?

Juraj

on NodeMCU it is done automatically

ro which pins you wired the multiplexer?
https://electronics.stackexchange.com/questions/402066/esp8266-free-gpios-for-relay-switching/404845#404845

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