Answers Database
JTAG - How to 'turn on' jtag circuitry via XDE and EPIC for XC4K/XC5K devices
Record #1220
Product Family: Hardware
Product Line: 4000
Product Part: 4000
Problem Title:
JTAG - How to 'turn on' jtag circuitry via XDE and EPIC for XC4K/XC5K devices
Problem Description:
Urgency: Standard
General Description:
How to turn on the Boundary Scan circuitry in the XC4K/XC5K
devices after configuration.
Solution 1:
1. Load the .lca file in XDE
2. type 'eb bscan'
This will bring up the editblock window for the BSCAN block.
3. In the editblock window, select the 'used' text, which is
by the BSCAN line. The user will see the 'used' text turn
red.
4. type 'endblk'
5. The user should now see that the TAP pins and the BSCAN
symbol are 'used'; The color of these blocks will have
changed from yellow to gray.
Solution 2:
1. Load the .ncd file in EPIC
2. In EPIC, do a Find for the BSCAN site.
3. Select Edit -> Add.
4. Select the BSCAN site by clicking on it.
5. Now use Editblock to open the block.
6. Select the checkbox next to the 'USED' text. Save the .ncd
file.
End of Record #1220 - Last Modified: 01/26/00 15:13 |
