Cheapest way to get a chipscope compatible cable?
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From: Petter Gustad on 9 Dec 2009 04:04 John Adair <g1(a)enterpoint.co.uk> writes: > A number of parallel port based cables, like our Prog2 cable, will > work for Chipscope/Impact tools. USB solutions are not readily Is the ChipScope/Impact software interface documented? Is there a way I can write a plug-in for my programmer so that it will work with my own programmer? Petter -- A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing on usenet and in e-mail?
From: Uwe Bonnes on 9 Dec 2009 12:40 Petter Gustad <newsmailcomp6(a)gustad.com> wrote: > John Adair <g1(a)enterpoint.co.uk> writes: > > A number of parallel port based cables, like our Prog2 cable, will > > work for Chipscope/Impact tools. USB solutions are not readily > Is the ChipScope/Impact software interface documented? Is there a way > I can write a plug-in for my programmer so that it will work with my > own programmer? Petter Are you kidding ? -- Uwe Bonnes bon(a)elektron.ikp.physik.tu-darmstadt.de Institut fuer Kernphysik Schlossgartenstrasse 9 64289 Darmstadt --------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------
From: Petter Gustad on 10 Dec 2009 03:56 Uwe Bonnes <bon(a)elektron.ikp.physik.tu-darmstadt.de> writes: > Are you kidding ? Not actually. I was hoping that Xilinx had specified some of the interface to allow for 3rd party development of debugging interfaces. Petter -- A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing on usenet and in e-mail?
From: Uwe Bonnes on 10 Dec 2009 04:48 Petter Gustad <newsmailcomp6(a)gustad.com> wrote: > Uwe Bonnes <bon(a)elektron.ikp.physik.tu-darmstadt.de> writes: > > Are you kidding ? > Not actually. I was hoping that Xilinx had specified some of the > interface to allow for 3rd party development of debugging interfaces. I always bug Xilinx on fairs to document the interfaces, but while technical people at the booth understand the point, they mostly tell that higher levels in the company will strongly oppose. So the release of the DLC10 cable clone on the SP601 board came as a surprise, but it doesn't help with using other cables for Chipscope communication. One way for resolution could be that the Xilinx devellopers see the ease of using the FT2232H and supply a cable with it. As the FT2232H needs no firmware, other FT2232H cables would work too. The other way would be to intercept the USB communication with the DLC9/10 (at least on Linux in the libusb level) and translate the DLC9/10 (already reversed engineered) primitives to primitives for the target cable. Another project on my list... Bye -- Uwe Bonnes bon(a)elektron.ikp.physik.tu-darmstadt.de Institut fuer Kernphysik Schlossgartenstrasse 9 64289 Darmstadt --------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------
From: Alex Freed on 10 Dec 2009 21:07
Uwe Bonnes wrote: > > I always bug Xilinx on fairs to document the interfaces, but while technical > people at the booth understand the point, they mostly tell that higher > levels in the company will strongly oppose. > No big surprise here: if they sell a cable worth about $10 in parts for $250 they think it's good busyness. Doesn't take into account the loss from bad PR this generates. In any case there are now compatible Xilinx cable clones that are always available on e-bay for around $70 or so. In addition my understanding is that Digilent has a compatibility library now that allows their very inexpensive USB cable to be used with Xilinx tools. Didn't try it myself as I have both a genuine Xilinx cable and a clone from China that works just as well just in case. -Alex. |