Re: [avr-chat] avrdude succeeded once, fails subsequently :-(

[Rick Mann]

Huh. I changed it to use dragon_pdi and write to "flash" instead of 
"application", and it seems to be working.

-- 
Rick

On Apr 7, 2013, at 18:23 , Rick Mann <address@hidden> wrote:

> I'm trying to program a simple LED blinker onto the A3BU explained board. I 
> got it on there once, and my LED started blinking. I made a slight change, 
> and now avrdude fails in the verification step, and the code no longer works.
> 
> avrdude: verifying ...
> avrdude: verification error, first mismatch at byte 0x01fe
>         0x13 != 0x11
> avrdude: verification error; content mismatch
> 
> I'm invoking avrdude with:
> 
> $ /usr/local/CrossPack-AVR/bin/avrdude -p atxmega256a3b -P usb -c dragon_jtag 
> -U application:w:helloworld.hex
> 
> Also, is there any way to get dragon in JTAG mode to reset the MCU and allow 
> it to run? After programming, it appears halted. I have to disconnect dragon 
> and power-cycle the board.
> 
> Oh, I just saw that PDI is also supported; for some reason, I didn't see that 
> before. Anyway, PDI seems to get just as far as JTAG mode.
> 
> Please help!
> 
> -- 
> Rick
> 
> 
> 


-- 
Rick