Show Posts
Pages: [1]
1  Using Arduino / Installation & Troubleshooting / 3.3V Pro Mini not uploading sketches via SparkFun FTDI Basic Breakout on: April 15, 2014, 03:49:43 pm
I was able to upload and run programs to my Arduino Mega 2560 with no problems while prototyping, but when I connected my Pro Mini to my SparkFun FTDI breakout board and hooked it up to my computer, I would get this error when it attempted to upload my sketch:

avrdude: stk500_program_enable(): unknown response=0x41
avrdude: initilization failed, rc=-1
                Double check connections and try again, or use -F to override
                this check.
avrdude: stk500_disable():protocol error, expect=0x41, reap=056

I'm using windows 8 and did change my board selection.  I can see the TX and RX lights blinking when I first connect, and the green LED on the mini blinks about 8 times.  The red LED on the mini is on constantly.  Also, nothing is connected to the pro mini except the breakout board, and I did go through the troubleshooting steps on this website...

When I attempt to upload, the green on board LED blinks a few times and I see the TX and RX lights blinking as well. Then they all stop, except the red LED remains on.  

No idea what is going on.  Anyone out there know how to fix this?

Also on the bottom of the window I can see this displayed
Arduino Pro or Pro Mini (3.3v.8 MHz) w/ATmega328 on COM5

I tried two other mini USB cords and the third one allowed me to upload.  So problem solved.  I was not aware there were different types of mini usb cables??
2  Using Arduino / Audio / Re: EasyVR Shield - can't connect in UP Flash update mode on: December 26, 2012, 06:43:07 pm
I'm having similar issues.  Anyone ever respond?
3  Using Arduino / Installation & Troubleshooting / Re: Mega2560: timeout communicating with programmer.... on: December 05, 2012, 02:51:45 pm
I'm having the same problem.  No !!! in  my code and I was uploading fine, then it started giving me the same timeout error

avrdude: stk500v2_ReceiveMessage(): timeout

For a while, just unplugging the USB and plugging it back in would allow an upload, now it won't upload at all. And I did that, though it was a pain in the neck.

Grrrr.  Frustrating, I'm wondering if I made the wrong choice in getting this Arduino instead of another micro controller.
Pages: [1]