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Re: [avr-gcc-list] Programming Atmel FPGAs from AVR?
From: |
Daniel O'Connor |
Subject: |
Re: [avr-gcc-list] Programming Atmel FPGAs from AVR? |
Date: |
Sun, 20 May 2007 21:26:27 +0930 |
User-agent: |
KMail/1.9.5 |
On Sunday 20 May 2007 16:22, Rick Mann wrote:
> On May 19, 2007, at 11:41 PM, Rick Mann wrote:
> > Has anyone tried developing a project with an FPGA, and programming
> > it from an AVR? I want to develop something that requires a LOT of
> > PWMs, and an FPGA seems like a good way to do that. But I wonder if
> > I could forego separate FPGA programming hardware, and just program
> > it from the AVR.
>
> As I read about the Atmel FPGAs I see that they can include an AVR
> core; there's hardly any point to having a separate AVR.
It could be nice for a variety of reasons IMO.
Yes the FPGA can include a AVR core but having an AVR there as a hard
micro can make certain situations much easier - eg in the field
upgrades.
The other thing is that yes there is the core available, but a) does it
work with the FPGA you want? b) is it 100% compatible with the hardware
AVR?, c) does GCC work OK for it?, etc..
I think you could fairly easily program the FPGA in slave serial mode
(Xilinx FPGAs can do this, they are the only ones I have used), or you
could implement a JTAG engine and get the Atmel tools to generate a
STAPL file (or something similar).
--
Daniel O'Connor software and network engineer
for Genesis Software - http://www.gsoft.com.au
"The nice thing about standards is that there
are so many of them to choose from."
-- Andrew Tanenbaum
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- [avr-gcc-list] Programming Atmel FPGAs from AVR?, Rick Mann, 2007/05/20
- Re: [avr-gcc-list] Programming Atmel FPGAs from AVR?, Rick Mann, 2007/05/20
- Re: [avr-gcc-list] Programming Atmel FPGAs from AVR?, Clemens Koller, 2007/05/20
- Re: [avr-gcc-list] Programming Atmel FPGAs from AVR?, Rick Mann, 2007/05/20
- Re: [avr-gcc-list] Programming Atmel FPGAs from AVR?, Colin O'Flynn, 2007/05/20
- Re: [avr-gcc-list] Programming Atmel FPGAs from AVR?, Rick Mann, 2007/05/21
- Re: [avr-gcc-list] Programming Atmel FPGAs from AVR?, TODD BATZLER, 2007/05/21
- OT: Re: [avr-gcc-list] Programming Atmel FPGAs from AVR?, Clemens Koller, 2007/05/21
- Re: OT: Re: [avr-gcc-list] Programming Atmel FPGAs from AVR?, Daniel O'Connor, 2007/05/21
Re: [avr-gcc-list] Programming Atmel FPGAs from AVR?,
Daniel O'Connor <=