Why can’t I find guidance on how to access the SDC cookbook for JTAG signal constraints from the Download Cable II User Guide? - Why can’t I find guidance on how to access the SDC cookbook for JTAG signal constraints from the Download Cable II User Guide? Description In the Download Cable II User Guide , Section 2.7: JTAG Timing Constraints and Waveforms , there is no guidance on how to access the SDC Cookbook for JTAG signal constraints. This may lead to confusion for users who need to apply timing constraints correctly when using the Download Cable II. Resolution Follow these steps to add the JTAG signal constraints template from the SDC Cookbook: Navigate to File > New > SDC File , then click OK . In the newly opened SDC file, right-click and select Insert Template . In the Insert Template window, go to: Timing Analyzer > SDC Cookbook > JTAG Signal Constraints Include the following note to clarify usage: Users may adjust the Download Cable II (USB Blaster II) cable length to match their design. Do not modify the USB Blaster parameters listed below, as they are critical for proper operation: set tck_blaster_tco_max 14.603 set tck_blaster_tco_min 14.603 set tms_blaster_tco_max 9.468 set tms_blaster_tco_min 9.468 set tdi_blaster_tco_max 8.551 set tdi_blaster_tco_min 8.551 set tdo_blaster_tsu 5.831 set tdo_blaster_th -1.651 Related Articles 2.7. JTAG Timing Constraints and Waveforms Custom Fields values: ['novalue'] Troubleshooting 15018099950 - Verify if Agilex families require set_false_path constraints in JTAG Signal Constraints template False ['novalue'] ['novalue'] novalue novalue ['Agilex™ FPGA Portfolio', 'Arria® 10 Bare Die', 'Cyclone® Bare Die', 'MAX® CPLDs', 'Stratix® FPGAs'] ['novalue'] ['novalue'] ['Download Cable', 'Intel® FPGA Download Cable II']