Intel® FPGA Download Cable II User Guide

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ID 683719
Date 1/16/2024
Public
Document Table of Contents
Document Table of Contents x
1. Setting Up the Intel® FPGA Download Cable II 2. Intel® FPGA Download Cable II Specifications 3. TCK Frequency Auto-Adjust for Intel® FPGA Download Cable II A. Additional Information B. Document Revision History for the Intel® FPGA Download Cable II User Guide
1. Setting Up the Intel® FPGA Download Cable II x
1.1. Supported Devices and Systems 1.2. Power Source Requirements 1.3. Software Requirements and Support 1.4. Installing the Intel® FPGA Download Cable II for Configuration or Programming 1.5. Installing the Intel® FPGA Download Cable II Driver on Windows 7/8/10 Systems 1.6. Installing the Intel® FPGA Download Cable II Driver on Linux Systems 1.7. Installing the Intel® FPGA Download Cable II Driver on Windows XP Systems 1.8. Setting Up the Intel® FPGA Download Cable II Hardware with the Intel® Quartus® Prime Software
2. Intel® FPGA Download Cable II Specifications x
2.1. Voltage Requirements 2.2. Cable-to-Board Connection 2.3. Intel® FPGA Download Cable II Plug Connection 2.4. 10-Pin Female Plug Signal Names and Programming Modes 2.5. Circuit Board Header Connection 2.6. Operating Conditions 2.7. JTAG Timing Constraints and Waveforms 2.8. Changing the TCK Frequency
3. TCK Frequency Auto-Adjust for Intel® FPGA Download Cable II x
3.1. Turn ON/OFF Auto-Adjust Feature
A. Additional Information x
A.1. Windows Troubleshooting Procedure for Intel® FPGA Download Cable II A.2. Troubleshooting Procedure for Error when scanning hardware - No Devices A.3. Certification Statements
A.1. Windows Troubleshooting Procedure for Intel® FPGA Download Cable II x
A.1.1. Jtagconfig Version Setting ( Intel® Quartus® Prime software root directory setting) A.1.2. Jtagserver Setting A.1.3. Install/Reinstall the Intel® FPGA Download Cable II driver
A.1.1. Jtagconfig Version Setting ( Intel® Quartus® Prime software root directory setting) x
A.1.1.1. Automatic Setting A.1.1.2. Manual Setting
A.3. Certification Statements x
A.3.1. RoHS Compliance A.3.2. USB 2.0 Certification A.3.3. CE EMI Conformity Caution
1. Setting Up the Intel® FPGA Download Cable II
2. Intel® FPGA Download Cable II Specifications
3. TCK Frequency Auto-Adjust for Intel® FPGA Download Cable II
A. Additional Information
B. Document Revision History for the Intel® FPGA Download Cable II User Guide

2.8. Changing the TCK Frequency

The Intel® FPGA Download Cable II has a default TCK frequency of 24 MHz. Where signal integrity and timing prevents operating at 24 MHz, change the TCK frequency of the download cable:

  1. Open the command line interface with the Intel® Quartus® Prime bin directory in your path (for example, C:\< Intel® Quartus® Prime installed folder>\< Intel® Quartus® Prime version>\quartus\bin64).
  2. Type the following command to change the TCK frequency: 
    jtagconfig --setparam <cable number> JtagClock <frequency><unit prefix>
Where:
  • <cable number> is the download cable to be modified.
  • <frequency> is the desired TCK frequency. Use one the following supported rates:
    • 24 MHz
    • 16 MHz
    • 6 MHz
    • 24/n MHz (between 10 KHz and 6 MHz, where n represents an integer value number)
  • <unit prefix> is the unit prefix for the frequency (e.g. M for MHz).

Example for setting TCK maximum frequency to 6 MHz : 

jtagconfig --setparam 1 JtagClock 6M
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