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I am trying to flash a new Firmware to my Ender 3 Pro.

I am using the ESP8266 as an ISP via AVRISP over Wifi.

I have a 10mF capacitor between the ground and reset of the ESP8266

I followed this thread: ESP8266 as ISP program for ATMega16

When uploading I get the following output on console:

C:\Users\Chry>"I:\3dPrints\Firmware Pack Source Folder\Windows Arduino\hardware\tools\avr/bin/avrdude" -C "I:\3dPrints\Firmware Pack Source Folder\Windows Arduino\hardware\tools\avr/etc/avrdude.conf" -v -V -p atmega1284p -c arduino -P net:192.168.178.59:328 -b 115200 -D -U flash:w:C:\Users\Chry\AppData\Local\Temp\arduino_build_166520/TH3DUF_R2.ino.hex:i avrdude: Version 6.3-20171130 Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/ Copyright (c) 2007-2014 Joerg Wunsch System wide configuration file is "I:\3dPrints\Firmware Pack Source Folder\Windows Arduino\hardware\tools\avr/etc/avrdude.conf" Using Port : net:192.168.178.59:328 Using Programmer : arduino Overriding Baud Rate : 115200 avrdude: ser_drain(): read error: Falscher Parameter. avrdude: ser_drain(): read error: Falscher Parameter. avrdude: ser_drain(): read error: Falscher Parameter. AVR Part : ATmega1284P Chip Erase delay : 55000 us PAGEL : PD7 BS2 : PA0 RESET disposition : dedicated RETRY pulse : SCK serial program mode : yes parallel program mode : yes Timeout : 200 StabDelay : 100 CmdexeDelay : 25 SyncLoops : 32 ByteDelay : 0 PollIndex : 3 PollValue : 0x53 Memory Detail : Block Poll Page Polled Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBack ----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- --------- eeprom 65 10 128 0 no 4096 8 0 9000 9000 0xff 0xff flash 65 10 256 0 yes 131072 256 512 4500 4500 0xff 0xff lock 0 0 0 0 no 1 0 0 9000 9000 0x00 0x00 lfuse 0 0 0 0 no 1 0 0 9000 9000 0x00 0x00 hfuse 0 0 0 0 no 1 0 0 9000 9000 0x00 0x00 efuse 0 0 0 0 no 1 0 0 9000 9000 0x00 0x00 signature 0 0 0 0 no 3 0 0 0 0 0x00 0x00 calibration 0 0 0 0 no 1 0 0 0 0 0x00 0x00 Programmer Type : Arduino Description : Arduino avrdude: stk500_getparm(): (a) protocol error, expect=0x14, resp=0x14 avrdude: stk500_getparm(): (a) protocol error, expect=0x14, resp=0x10 Hardware Version: 4744608 Firmware Version: 0.2 Topcard : STK502 Vtarget : 1.8 V Varef : 0.0 V Oscillator : Off SCK period : 0.1 us avrdude: stk500_initialize(): (b) protocol error, expect=0x10, resp=0x01 avrdude: initialization failed, rc=-1 Double check connections and try again, or use -F to override this check. avrdude: stk500_disable(): protocol error, expect=0x14, resp=0x10 avrdude done. Thank you. 

I can't seem to get it to work. Does anyone have any ideas?

I tried programming it directly: I use the standard Arduino ISP sketch on my ESP8266 and try to upload that way. Directly connected the ESP8266 to my computer. I get sync-problems now: avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x61 The Board in the arduino IDE is set to Sanguino 1284p and the programmer is set to Arduino as ISP.

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  • I have a 10mF capacitor between the ground and reset of the ESP8266. I'll edit that info in the question as well. Commented Sep 14, 2019 at 21:36
  • found this ... github.com/arduino/Arduino/issues/730 Commented Sep 14, 2019 at 21:53
  • That goes beyond my understanding. I changed plans though. I use the standard Arduino ISP sketch on my ESP8266 and try to upload that way. Directly connected the ESP8266 to my computer. I get sync-problems now: avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x61 Commented Sep 14, 2019 at 23:07
  • you are not alone github.com/esp8266/Arduino/issues/6517#issuecomment-531480035 I will try it today. I tested it in Jan 2018 and it worked then Commented Sep 15, 2019 at 5:27
  • github.com/esp8266/Arduino/issues/6519#issuecomment-531551733 Commented Sep 15, 2019 at 10:11

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I assume that you have to wrap the directory in the option -U flash:w:C:\Users\Chry\AppData\Local\Temp\arduino_build_166520/TH3DUF_R2.ino.hex:i with "s. I don't promise that it'll work with that change, but C:\Users... will definitely confuse the parser due to the :!

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