Interface Firmware ...
Clear all

Interface Firmware Installation  


Eminent Member
Joined: 3 years ago
Posts: 21
May 10, 2020 10:46 pm  

I get the following when trying to install firmware:

1 - BruControl.45H.MEGA.E.hex
2 - BruControl.45H.MEGA.S.hex
3 - BruControl.45H.MEGA.W.hex
- Which firmware to upload (select by number above):2
Press any key to continue . . .

avrdude: Version 6.3, compiled on Jan 17 2017 at 12:00:53
Copyright (c) 2000-2005 Brian Dean,
Copyright (c) 2007-2014 Joerg Wunsch

System wide configuration file is "avrdude.conf"

Using Port : COM3
Using Programmer : wiring
Overriding Baud Rate : 115200
avrdude: ser_open(): can't open device "\\.\COM3": Access is denied.

avrdude: ser_drain(): read error: The handle is invalid.

Any help would be appreciated. Attached file shows my Device Manager.

Reputable Member Admin
Joined: 3 years ago
Posts: 275
May 10, 2020 11:29 pm  

Another program is accessing the COM port simultaneously... do you have the Terminal (termite) open too?

Eminent Member
Joined: 3 years ago
Posts: 21
May 11, 2020 9:52 am  

@pbruno3 Thanks, yes the BruControl application was running with a digital output to the COM port....duh.