Answers Database

BOUNDARY SCAN/JTAG: Using TI ASSET tester with Xilinx BSDL files (Instruction_Private)


Record #191

Problem Title:
BOUNDARY SCAN/JTAG: Using TI ASSET tester with Xilinx BSDL files
(Instruction_Private)



Problem Description:
Keywords: bsdl, assett, instruction_private

Urgency: standard

General Description:
The attribute "Instruction_Private" in the BSDL files for Xilinx
XC4K/XC5K devices is not supported by TI's ASSET tester. TI will
include support for this feature in the future releases of the software. This is
 a valid attribute according to the BSDL
standard.


Solution 1:

To get these files to compile in the present ASSET tools, the following
lines can be commented out, as follows (add the '--' characters at the
begining of the line):

--  attribute INSTRUCTION_PRIVATE of XC4005 : entity is

--  "USER1, " &     -- If function is programmed and not private, remove
--  "USER2, " &     -- If function is programmed and not private, remove
--  "RESERVED";     -- Xilinx reserved

As a result, the tester will have no knowledge of the private
instructions, i.e., it will not know that the corresponding op-codes are
for special purposes, etc.

This should only be necessary for the TI ASSET boundary scan tools.

TI tech support -- Dave Bonnet -- (214) 575-3357




End of Record #191