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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
2.1. 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
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3. TCK Frequency Auto-Adjust for Intel® FPGA Download Cable II
The TCK Frequency Auto-Adjust is a new feature implemented in Intel® Quartus® Prime 19.1 Pro release for the Intel® FPGA Download Cable II . This feature provide convenience and prevents incorrect TCK frequency setting that might cause slower device failure during JTAG operation.
The auto-adjust feature is enabled as default. To disable the auto-adjust feature, you can use the command line interface or Programmer GUI. The status of the feature is reset to default (enabled) when the cable is reconnected or JTAG server is restarted.
The auto-adjust feature always applies optimum frequency that can support on the current JTAG chain based on the BYPASS tests. If you specified a TCK frequency, the auto-adjust feature stops at the specified TCK frequency with the condition that the BYPASS tests are passing at the frequency.
Otherwise, the auto-adjust feature continues and will stop at lower frequency which the BYPASS tests are passing.
This new feature is only applicable when both Intel® Quartus® Prime and JTAG server are in version 19.1. If you use Intel® Quartus® Prime 19.1 with older JTAG server (before version 19.1), the auto-adjust feature is not available.
Note: The TCK frequency auto-adjust is designed based on the hard JTAG scan chain. For virtual JTAG scan chain, the TCK frequency after auto-adjust may still require further adjustment from the user for successful JTAG operation.