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From: | TODD BATZLER |
Subject: | Re: [avr-gcc-list] Programming Atmel FPGAs from AVR? |
Date: | Mon, 21 May 2007 08:01:31 -0500 |
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 _______________________________________________ AVR-GCC-list mailing list address@hidden http://lists.nongnu.org/mailman/listinfo/avr-gcc-list |
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