Re: [avrdude-dev] ERE EMBMega32 board and avrdude.conf

[Nathan Smith]

Nathan Smith wrote:

> Ok, I'm using the standard download cable (ISP-AVR) for the ERE Mega32 
> board (www.ere.co.th).
>
> I emailed them and got the lpt pin out.
>
> I've tried (1) setting up my own, new, programmer in avrdude.conf and 
> (2) modifying another entry to suit the ERE ISP-AVR cable.
>
> Unfortunately nothing I've done works.
>
> The download cable uses a 7407 buffer and the pinout has a pin out for 
> the parallel port has a pin labelled "CONT" along with "MOSI, SCK, RES 
> etc". Within the download cable, "CONT" is tied high.  Could this 
> "CONT" pin need to be pulsed to get it to download? And if so what 
> should I try within avrdude to get it is pulse or whatever anyone 
> suggests here.
>
> Thanks
Having now checked to 7407 datasheet I can't see why it is there. In the 
actual header pin out to the board it doesn't actually seem to connect 
to anything.  I'm stumped why the extra pin called "CONT" is there.

Anyway, any thoughts what I should do next? I've told avr dude which 
parallel port pins end up connecting to MOSI, MISO, SCK and RESET and 
avrdude says "device not responding"


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