Xilinx EZTag User Manual page 57

Ensure that there is power to your board and to the XChecker cable.
You must connect V
it. The cable draws power from your target system, not from the host
computer. Ensure that the RS-232 connector is firmly attached.
Ensure that there is power to your board and to the cable. You must
connect V
XChecker draws power from your target system, not from the host
computer. Ensure that the RS-232 connector is firmly attached.
Try using the Reset command with the cable option. Ensure that there
is power to your board and to the cable. Check all connections.
See the Interactive Mode Commands section for valid with the
XChecker cable. If you are using the previous parallel or serial
download cables, you can only use the Load command to download.
Check all connections. Check for noise that may be induced into your
target system or from your target system into the XChecker
connections. Do not use cable extensions. The XChecker cable length
is tested to produce minimal noise levels. Remember that a logic
High must be 80-100% of V
V
See Table 3-1 for the valid baud rates for your computer.
See the Interactive Mode Commands section in Chapter 3 for correct
command usage.
Check this manual for supported ports. See the Port command.
EZTag User Guide
Error 123: No XChecker cable is connected to the port
portname.
and ground to the test fixture, if you are using
CC
Error 124: No XChecker cable is connected to the
system.
and ground to the test fixture, if you are using it.
CC
Error 125: Fail reading cable status.
Error 126: Unsupported command for this cable.
Error 128: Read only number of bits received.
.
CC
Error 130: Invalid baud rate. Current baud rate is
baud rate.
Error 131: Missing baud rate. Current baud rate is
baud rate.
Error 134: Cannot communicate with port port name.
and a Logic Low must be 0-25% of
CC
Error Messages
A-5