**** BEGIN LOGGING AT Fri Nov 25 03:03:52 2005
Nov 25 10:36:01 <lennert> not sure if i've asked this before.. anyone got more info on the xilinx usb-jtag cable?
Nov 25 10:49:52 <vmaster> not sure if it was here, but i've heard it's a 32 or 64 macrocell cpld plus a usb controller
Nov 25 10:52:27 <vmaster> ah, actually it's a coolrunner2 128 macrocell + cypress high-speed usb
Nov 25 10:54:37 <lennert> the digilent virtex2pro board has the cable integrated
Nov 25 10:54:53 <lennert> i.e. there is a usb connection on the board and the usb-jtag logic is on the board itself
Nov 25 10:54:58 <lennert> i see..
Nov 25 10:55:05 <vmaster> heh, undocumented, i guess?
Nov 25 10:55:11 <lennert> a cy7c68013
Nov 25 10:55:33 <vmaster> that's a fx2
Nov 25 10:55:42 <lennert> vmaster: yup, the relevant parts have been left out of the pdf drawings mentioning that it's not public info
Nov 25 10:56:09 <lennert> under the board.. an xc2c256
Nov 25 10:56:21 <vmaster> comp.arch.fpga, october 18th, 
Nov 25 10:56:24 <vmaster> Re: Xilinx USB cable
Nov 25 10:56:24 <vmaster> From:
Nov 25 10:56:24 <vmaster> Antti Lukats <antti@openchip.org>
Nov 25 10:56:24 <vmaster> Date:
Nov 25 10:56:24 <vmaster> Tuesday 18 October 2005 20:04:05
Nov 25 10:56:28 <vmaster> Groups:
Nov 25 10:56:30 <vmaster> comp.arch.fpga
Nov 25 10:56:31 <vmaster> References: 1 2
Nov 25 10:56:34 <lennert> and an xcf32p
Nov 25 10:56:52 <lennert> (the flash programming info for the xc2c256, i presume)
Nov 25 10:57:03 <lennert> vmaster: what's that?  programming info?
Nov 25 10:57:10 <vmaster> antti lukas about the xilinx cables
Nov 25 10:57:19 <lennert> okay
Nov 25 10:57:26 <vmaster> mentioning that the firmware for the fx2 is downloaded during device enumeration
Nov 25 10:57:43 <lennert> i kind of hate this board.. the systemace is undocumented and so is the usb-jtag
Nov 25 10:57:53 <lennert> hmmm, what's the xcf32p for, then?
Nov 25 10:59:00 <vmaster> how large is this? antti talks about a vid/pid eeprom
Nov 25 11:00:03 <lennert> 32 megabit, i think?
Nov 25 11:00:06 <lennert> let me find that.
Nov 25 11:00:36 <vmaster> yeah, found a xilinx product matrix
Nov 25 11:00:41 <vmaster> 32mbit
Nov 25 11:00:58 <lennert> yup
Nov 25 11:01:06 <lennert> ds123.pdf
Nov 25 11:01:29 <lennert> the xupv2p board reference drawings have everything _except_ the usb-jtag stuff
Nov 25 11:01:46 <lennert> so if it's not on there it's for the xc2c256
Nov 25 11:02:46 <vmaster> coolrunner doesn't need prom
Nov 25 11:03:26 <lennert> of course..
Nov 25 11:03:27 <vmaster> the fx2 has 8kb ram - 32mbit seems a little bit too much
Nov 25 11:03:28 <lennert> d'oh
Nov 25 11:03:32 <lennert> :)
Nov 25 11:03:42 <lennert> indeed, and the xcf32p connects to the v2pro
Nov 25 11:03:59 <lennert> (but of course, the jtag chain is not brought out so it's no use for programming it either)
Nov 25 11:08:56 <lennert> the parallel one is simple: http://toolbox.xilinx.com/docsan/2_1i/data/common/hug/fig13.htm
Nov 25 11:09:27 <vmaster> i guess that's parallel cable 3
Nov 25 11:09:52 <lennert> yeah
Nov 25 11:09:56 <vmaster> cable iv is more like the usb cable
**** ENDING LOGGING AT Sat Nov 26 02:59:57 2005