Article ID: 000076168 Content Type: Troubleshooting Last Reviewed: 09/11/2012

Why am I getting a "Unable to scan JTAG chain" when trying to program my Cyclone III FPGA Development Kit?

Environment

BUILT IN - ARTICLE INTRO SECOND COMPONENT
Description

You may receive an "Unable to scan JTAG chain" when trying to program your Cyclone® III FPGA Development Kit if you have the 4-position (SW3.4) mini-DIP switch set to "ON" as stated in Table 4-2 of the Cyclone III FPGA Develpoment Kit User Guide Version 1.1. SW3.4 should be set to the "OFF" position to scan the JTAG chain. Newer versions of the document have been updated.

You may download the latest version of the documents on the Cyclone III FPGA Development Kit products page.

Related Products

This article applies to 1 products

Cyclone® III FPGAs