Re: [avr-gcc-list] Programming Atmel FPGAs from AVR?

[TODD BATZLER]

Rick,

Although I'm most familiar with Altera, Lattice and Xilinx FPGA's, they all have

one thing in common and that's the serial flash device that they configure from

on power up.  I'll assume without checking that the Atmel is the same.

 

I would think you could certainly come up with a method to

program the serial flash part from the on-board Atmel.  I do a similar thing

with a mux between the programming connector, FPGA and serial flash to

allow re-programming of the serial flash while the FPGA is in operation. 

Using the serial config flash means that for changes to take affect, the

easiest way is through a power down/up forcing a re-configuration of the

FPGA.  There's probably a way to force that to happen 'on the fly' as well, but

I don't have experience here.  I'm controlling multi-kilowatt power conversion and

pre-regulation stages and interrupting the gate-drive async is 'bad'.

 

I'd be willing to share a hardware snippet in Eagle showing how I've done

the multiplexing.

 

Todd


>>> Rick Mann <address@hidden> 5/21/2007 12:37 AM >>>

On May 20, 2007, at 3:49 PM, Colin O'Flynn wrote:

> See http://www.newae.com/loonboard/lub for more details on the 
> system. There's
> an article there that was in CC that will give you some ideas perhaps?

Oh that sounds cool. I'll check it out.

Thanks!

--
Rick




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