General Technical Discussion

[ramyanedumbala]

sir thankyou for your reply.

i have tried to read it using chipscope pro. but the error is coming like...

COMMAND: configure 2 "C:\Documents and Settings\Administrator\Desktop\FPGA_try\abc\cd.bit" 0
INFO: Found 0 Core Units in the JTAG device Chain.

can i know due what is this?as iam new to chip scop pro analizer..hops ur reply

[gszakacs]

The "0 Core Units" info usually means that the bitstream loaded into the FPGA does

not contain the ChipScope ILA core (you mornally add these with the ChipScope inserter

or instantiate them directly in your design).

If your design has a ChipScope ILA core and you still see this message, it may be that

you have downloaded the wrong bitstream, or the FPGA has been loaded from an

attached PROM or Flash from a different bitstream.

By the way, I would suggest avoiding path names with spaces in them like "Documents an Settings" -

there are some portions of the ISE package that don't work well with them.  Note that for the English

versions of Windows, this includes you desktop and "My Documents" folders.  I normally keep

all Xilinx related stuff in a folder called "Projects" directly off the drive root like C:\Projects

-- Gabor

[ccon67]

Yes, "0 core" means no chipscope

Lot of users (like me) cofuse the first time as if chipscope is a free hardware core always attached to the FPGA...that's not true, chipscope is part of user "FPGA design",  it takes some resource CLB and BRAM... user has to add it in their design before using it

Very fun idea, you have to have your FPGA working first before you can debug it