Hi all,
I recently purchased an Adafruit Grand Central M4 Express for development on a project, only to find I can't upload even a Blink program to it . I consistently get the following verbose output from the uploader:
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 "C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr/etc/avrdude.conf"
Using Port : COM8
Using Programmer : wiring
Overriding Baud Rate : 115200
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: stk500v2_getsync(): timeout communicating with programmer
avrdude done. Thank you.
An error occurred while uploading the sketch
I should mention that while it does all of this,
I am positive that COM8 is the correct port. However, it does not list the board in the Port menu, it merely says the name of the port.
I have tried different USB cables and two computers, but this is the only Arduino I have.
However, all of this occurs when using Arduino Mega 2560, ATmega 2560
as the selected board and processor because it is the most similar in the list to my board. I followed this Adafruit guide for setting up the IDE to work with this board with no luck. After installing the correct board libraries and everything, Adafruit Grand Central M4 Express does not show up in the board menu. Windows does correctly identify the device when I plug in, and notifies me that the board is ready to use, with it's name and everything.
I really hope this board isn't broke or damaged, so any help is greatly appreciated!
Edit: I should mention that while uploading, the TX light stays solid for a while, then RX turns on, then periodically but slowly turns on and off then finally both of the lights turn off. RX is solid when it is on, too.