I got a new wifi rev2 and was able to upload a few sketches to it and mess with it a bit. after a few different example uploads, it started throwing the error below and won’t let me upload any new sketches to it. I can still open the serial port and receive data from the uploaded sketch (it’s not hogging the serial port, slow enough to stop and only prints a few lines of text). There was an old thread here on the Arduino forums https://forum.arduino.cc/t/error-upload … hes/634081 with the same issue that got closed without any solid solutions. I’ve tried uploading on Windows, Mac OS X, and the web editor and all throw the same error. I have also tried burning the bootloader using the IDE and it throws the same error. I was hoping that someone might have any ideas that I haven’t tried yet before I need to send it back for a new one.
Arduino: 1.8.19 (Mac OS X), Board: "Arduino Uno WiFi Rev2, None (ATMEGA4809)"
/Users/Corbin/Library/Arduino15/packages/arduino/tools/avrdude/6.3.0-arduino17/bin/avrdude -C/Users/Corbin/Library/Arduino15/packages/arduino/tools/avrdude/6.3.0-arduino17/etc/avrdude.conf -v -patmega4809 -cxplainedmini_updi -Pusb -Ufuse2:w:0x01:m -Ufuse5:w:0xC9:m -Ufuse8:w:0x02:m -Uflash:w:/Users/Corbin/Library/Arduino15/packages/arduino/hardware/megaavr/1.8.7/bootloaders/atmega4809_uart_bl.hex:i
avrdude: Version 6.3-20190619
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2014 Joerg Wunsch
System wide configuration file is "/Users/Corbin/Library/Arduino15/packages/arduino/tools/avrdude/6.3.0-arduino17/etc/avrdude.conf"
User configuration file is "/Users/Corbin/.avrduderc"
User configuration file does not exist or is not a regular file, skipping
Using Port : usb
Using Programmer : xplainedmini_updi
avrdude: Found CMSIS-DAP compliant device, using EDBG protocol
AVR Part : ATmega4809
Chip Erase delay : 0 us
PAGEL : P00
BS2 : P00
RESET disposition : dedicated
RETRY pulse : SCK
serial program mode : yes
parallel program mode : yes
Timeout : 0
StabDelay : 0
CmdexeDelay : 0
SyncLoops : 0
ByteDelay : 0
PollIndex : 0
PollValue : 0x00
Memory Detail :
Block Poll Page Polled
Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBack
----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
signature 0 0 0 0 no 3 0 0 0 0 0x00 0x00
prodsig 0 0 0 0 no 61 61 0 0 0 0x00 0x00
fuses 0 0 0 0 no 9 0 0 0 0 0x00 0x00
fuse0 0 0 0 0 no 1 0 0 0 0 0x00 0x00
fuse1 0 0 0 0 no 1 0 0 0 0 0x00 0x00
fuse2 0 0 0 0 no 1 0 0 0 0 0x00 0x00
fuse4 0 0 0 0 no 1 0 0 0 0 0x00 0x00
fuse5 0 0 0 0 no 1 0 0 0 0 0x00 0x00
fuse6 0 0 0 0 no 1 0 0 0 0 0x00 0x00
fuse7 0 0 0 0 no 1 0 0 0 0 0x00 0x00
fuse8 0 0 0 0 no 1 0 0 0 0 0x00 0x00
lock 0 0 0 0 no 1 0 0 0 0 0x00 0x00
data 0 0 0 0 no 0 0 0 0 0 0x00 0x00
usersig 0 0 0 0 no 64 64 0 0 0 0x00 0x00
flash 0 0 0 0 no 49152 128 0 0 0 0x00 0x00
eeprom 0 0 0 0 no 256 64 0 0 0 0x00 0x00
Programmer Type : JTAGICE3_UPDI
Description : Atmel AVR XplainedMini in UPDI mode
ICE hardware version: 0
ICE firmware version: 1.19 (rel. 57)
Serial number : 812A4234D61C649F196B
Vtarget : 5.00 V
JTAG clock megaAVR/program: 0 kHz
JTAG clock megaAVR/debug: 0 kHz
JTAG clock Xmega: 0 kHz
PDI clock Xmega : 0 kHz
avrdude: Short read, read only 0 out of 64 bytes
avrdude: jtag3_edbg_recv(): Unexpected response 0x00
avrdude: retrying with external reset applied
avrdude: jtag3_edbg_send(): Unexpected response 0x81, 0x11
avrdude: jtag3_edbg_recv(): Unexpected response 0x80
avrdude: retrying with external reset applied
avrdude: JTAGEN fuse disabled?
avrdude: initialization failed, rc=-1
Double check connections and try again, or use -F to override
this check.
avrdude: jtag3_edbg_send(): Unexpected response 0x81, 0x11
avrdude: jtag3_edbg_recv(): Unexpected response 0x80
avrdude: jtag3_edbg_send(): Unexpected response 0x81, 0x11
avrdude: jtag3_edbg_recv(): Unexpected response 0x80
avrdude: jtag3_edbg_signoff(): unexpected response 0x81, 0x11
avrdude: jtag3_edbg_signoff(): unexpected response 0x01, 0x00
avrdude done. Thank you.
Error while burning bootloader.
