Article ID: 000074815 Content Type: Troubleshooting Last Reviewed: 09/11/2012

Why is my JTAG user code changed to 0xFFFFFFFF in the SRAM Object File (.sof), Programmer Object File (.pof), and report files?

Environment

BUILT IN - ARTICLE INTRO SECOND COMPONENT
Description This problem occurs in the Quartus® II software version 5.0 when your design targets a Cyclone II device.

The Quartus II software uses the wrong assignment names for the JTAG user code in the Quartus II Settings File (.qsf), as shown in the following example.

set_global_assignment -name APEX20K_JTAG_USER_CODE <JTAG user code>

set_global_assignment -name APEX20K_CONFIG_DEVICE_JTAG_USER_CODE <JTAG user code>

These assignments are incorrect. Change the incorrect assignment names from APEX20K to STRATIX (when targeting a Cyclone II device) as shown in the following example:

set_global_assignment -name STRATIX_JTAG_USER_CODE <JTAG user code>

set_global_assignment -name STRATIX_CONFIG_DEVICE_JTAG_USER_CODE <JTAG user code>

This issue has been fixed in the Quartus II software version 5.1.

Related Products

This article applies to 2 products

Cyclone® FPGAs
Cyclone® II FPGA

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