A. Additional Information

A.1. Windows Troubleshooting Procedure for Intel FPGA Download

Cable

In the Windows version of the Intel Quartus Prime software, you may encounter that

the Intel FPGA Download Cable may ocassionally not work well; although you may not

observe any problems in the physical connections. In many cases, it is due to:

•

Incorrect Windows settings or some unknown problem with the Intel FPGA

Download Cable driver

•

The version of JTAG related software like Jtagconfig or Jtagserver not matching

the version of Intel Quartus Prime software

•

The version of the Intel FPGA Download Cable driver is old, not proper, or

corrupted

The troubleshooting steps are listed in the following sections.

A.1.1. Jtagconfig version setting (Intel Quartus Prime software root

directory setting)

1. Open a command prompt of Windows OS

Example message:

Version 18.1.1 Build 646 04/11/2019 SJ Standard Edition

3. If the version in the message does not match the Intel Quartus Prime version that

you use, you must modify the user system variables for your Windows account or

the system variables.

A.1.1.1. Automatic Setting

\qprogrammer\bin64

directory>\qprogrammer\quartus\bin64

for Intel Quartus Prime

Programmer tool.

2. Execute the following command:

qreg.exe --force –jtag –setqdir

3. Intel recommends you verify the environment variables using the manual setting

procedure explained in the section below.

UG-USB81204 | 2020.03.11

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