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AR# 15499

5.1i iMPACT - An attempt to read back CoolRunner-II USERCODE fails

Description

Urgency: Low 

 

General Description: 

After I program a new USERCODE into a CoolRunner-II device, an attempt to read back the USERCODE fails, and no error is displayed. 

 

// *** BATCH CMD : Program -p 1 -e -u 11222222  

Device #1 selected 

GUI --- *** BATCH COMMAND: ReadUsercode -p 1  

// *** BATCH CMD : setMode -bs 

GUI --- *** BATCH COMMAND: setMode -bscan 

// *** BATCH CMD : setMode -bs 

GUI --- *** BATCH COMMAND: setMode -bscan 

Validating chain... 

Boundary-scan chain validated successfully. 

'1': Usercode is ' """' 

// *** BATCH CMD : ReadUsercode -p 1  

Device #1 selected 

=> 

 

The following may also be reported: 

 

'1': The device does not support UES. 

// *** BATCH CMD : validateUsercode -p 1

Solution

The USERCODE is programmed correctly, but it cannot be verified. 

 

This problem is fixed in the latest 5.1i Service Pack, available at: 

http://support.xilinx.com/support/techsup/sw_updates
The first service pack containing this fix is 5.1i Service Pack 1. 

 

NOTE: This problem only affects the readback of CoolRunner-II USERCODEs.

AR# 15499
Date Created 09/03/2007
Last Updated 05/14/2014
Status Archive
Type General Article