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From: | Matt Ettus |
Subject: | Re: [Discuss-gnuradio] Finding the USRP2's CPLD source code |
Date: | Fri, 26 Mar 2010 10:41:04 -0700 |
User-agent: | Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.8) Gecko/20100301 Fedora/3.0.3-1.fc12 Thunderbird/3.0.3 |
On 03/25/2010 04:20 AM, G Wildebeest wrote:
Hi all, I'm poking around the USRP2's CPLD, the XC9572, mainly just to understand exactly how the U2 boots, and so looking for the Verilog source code that goes into the CPLD. I find usrp2/fpga/boot_cpld/boot_cpld.v, but this file has a comment that it is "only for u2_rev2," and I'm using u2_rev3 like most others.
This comment is old, and it meant "not for the rev 1". So it works with the rev2 (which was never sold) and the rev 3 and rev 4. boot_cpld.v is the top level file, and it includes some of the files from opencores/spi_boot
usrp2/fpga/models/cpld_model.v looks promising too; any hints?
That is a file used to model the CPLD in order to do simulations of the FPGA. It is not compiled into the design itself.
Matt
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