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Re: [avr-gcc-list] Altera CPLD Programming

From: Gary Douglas
Subject: Re: [avr-gcc-list] Altera CPLD Programming
Date: Tue, 13 Sep 2005 09:44:52 -0600
User-agent: Mozilla Thunderbird 1.0.2 (X11/20050317)

Can you point me to the SPI documents? I can't find them on Altera's site anywhere. I've found the JAM Player information(and source) and had planned on porting that to the AVR. SPI would be much quicker to do.



Hugo Villeneuve wrote:
On Mon, 12 Sep 2005 20:04:45 -0500
Oscar Diaz <address@hidden> wrote:


I know that exists some drivers that supports the JTAG protocol trough the parallel port:

www.nahitech.com/nahitafu/naxjp/naxjp-j.html (japanese)

Also exists a kernel driver, but maybe it's a dead project because I can't find 
the link to this.
I don't know of any project that can program commercial PLDs (CPLD, FPGA, etc) but I also have interest in this topic (Xilinx in particular).

Note: avarice (http://avarice.sourceforge.net/) uses JTAG for debugging process, not for programming.

Good Luck

On Wed, 07 Sep 2005 14:28:45 -0600
Gary Douglas <address@hidden> wrote:

Anybody written a utility to program an Altera CPLD with an ATMEGA part?

I am using an ATMEGA64 / Altera EPM7128A and would love to reprogram the CPLD using AVRDude and my (hacked) bootloader.

Anybody have any ideas? The CPLD JTAG programming is well documented, and I'm just looking for a jumpstart to save time.

        The simplest way to program an Altera or Xilinx CPLD using a 
microcontroller is through the SPI port. You just download a binary file, byte 
by byte, to the device. Altera have application notes on their website for SPI 


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