ChipScope Pro Software and Cores User Guide
213
UG029 (v14.3) October 16, 2012
Xilinx JTAG Programming Cable Troubleshooting
Table A-5:
Troubleshooting Cable Reference Voltage Issues
Issue(s)
Solution(s) or Work-Around(s)
1.
On attempting to connect to the cable
you see that the LED on the cable is
orange (and not green) and the
following messages in the console:
ERROR: ERROR:iMPACT:2246 -
A reference voltage has not been
detected on the ribbon cable
interface to the target system
(pin 2). Check that power is
applied to the target system and
that the ribbon cable is properly
seated at both ends. The status
LED on Platform Cable USB is
GREEN if target voltage is in the
proper range and applied to the
correct pin.
The issue here is usually an incorrect voltage on the VCC. Go to Issue #2.
2.
Is the target board powered on?
If NO: Check that the board is powered on correctly.
If YES: Go to Issue #3.
3.
Is the ribbon cable firmly plugged
into the target board connector and
the Platform Cable USB connector?
If NO: Re-seat the ribbon cable in both connectors.
If YES: Go to Issue #4.
4.
Is the VCC voltage on the cable
connection at the appropriate voltage
level?
If NO or NOT SURE: Use a test instrument to probe the voltage on the
board to make sure it is in the appropriate range.
If YES: then open a case with Xilinx Technical Support including the
following information:
•
Xinfo
•
cs_analyzer.log
•
If possible, a screen shot of voltage level on the VCC of the cable
at the cable connection on the target board.
