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Enumerate JTAG chain error
by ConX on Oct 28, 2010 |
ConX
Posts: 1 Joined: Jul 25, 2010 Last seen: Jan 6, 2013 |
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Hello everybody,
First of all I would like to mention that I am a starter in this field (my first project). I am currently using Xilinx Spartan3E-XC3S1600E and trying to syntesize minsoc on the board. I have managed to create the .bit file and program it. Thanks to Raul, I am at the point where I should start adv_jtag_bridge in order to proceed. Unfortunately, while executing it I get the following error:
$ ./adv_jtag_bridge xpc_usb
Found Xilinx Platform Cable USB (DLC9) Found Xilinx Platform Cable USB (DLC9) firmware version = 0x0517 (1303) cable CPLD version = 0x0012 (18) Enumerating JTAG chain... WARNING: maximum supported devices on JTAG chain (1024) exceeded. Devices on JTAG chain: Index Name ID Code IR Length ---------------------------------------------------------------- 0: (unknown) 0xFFFFFFFF -1 1: (unknown) 0xFFFFFFFF -1 2: (unknown) 0xFFFFFFFF -1 ...(no change in beetween)... 1021: (unknown) 0xFFFFFFFF -1 1022: (unknown) 0xFFFFFFFF -1 1023: (unknown) 0xFFFFFFFF -1 Target device 0, JTAG ID = 0xffffffff ERROR! Unable to autoprobe IR length for device index 0; Must set IR size on command line. Aborting. I have tried to re-plug the USB cable but to no good. What is going wrong? Thank you in advance, Constantinos |
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RE: Enumerate JTAG chain error
by nyawn on Nov 4, 2010 |
nyawn
Posts: 173 Joined: Dec 19, 2008 Last seen: May 31, 2023 |
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Hello, sorry I didn't see this sooner...
The problem is that the driver for your JTAG cable can't set it to the right mode, because Xilinx won't tell me how to do it. See Raul's post in the OpenRisc forum titled "Adv_jtag_bridge and xpc_usb special case" for more details. |
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