Intel® Quartus® Prime Pro Edition: Version 21.4 Software and Device Support Release Notes

ID 683706
Date 12/13/2021
Public
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1.12. Latest Known Intel® Quartus® Prime Software Issues

Information about known issues that affect Intel® Quartus® Prime Pro Edition Version 21.4 is available in the Intel FPGA Knowledge Base.
Table 16.  Important Known Issues Affecting Intel® Quartus® Prime Pro Edition Version 21.4 For the latest information about issues that affect Intel® Quartus® Prime Pro Edition Version 21.4, refer to What problems do I need to know about in the Intel® Quartus® Prime Pro Edition software version 21.4? in the Intel FPGA Knowledge Base.
Description Workaround
For some early-specification Intel® Agilex™ devices, the JTAG disable security fuse is not supported by the device but the Intel® Quartus® Prime Programmer Version 21.4 allows you to program the fuse on these devices. For a list of affected devices, refer to Intel® Agilex™ Known Issue List .

If your device is affected, do not use the Intel® Quartus® Prime Programmer Version 21.4 to program the JTAG disable security fuse on your device.

For the PHY Lite for Parallel Interfaces Intel Agilex FPGA IP, timing analysis results for periphery to core (P2C) transfer might not be reliable. As a result, you might have be functional-failures, bit-errors, or both on P2C paths.

This issue only affects P2C transfers within PHY Lite for Parallel Interfaces Intel Agilex FPGA IP.

For details and the availability of a fix, refer to " Why am I seeing intermittent bit-errors on the PHY Lite for Parallel Interfaces Intel® Agilex™ FPGA IP input path designs? " in the Intel FPGA Knowledge Base.

Some Intel® Stratix® 10 devices are incorrectly blocked from using simple quad-port memory mode. For details and the availability of a fix, refer to " Why are there functional errors in my simple quad port mode M20K RAM? " in the Intel FPGA Knowledge Base.

You can find known issue information for previous versions of the Quartus® Prime software on the Intel FPGA Knowledge Base web page.

Information about known software issues that affect previous versions of the Quartus® II software is available on the Intel® Quartus® Prime and Quartus II Software Support web page.

Information about issues affecting the Intel® FPGA IP Library is available in the release notes for each IP. You can find the IP release notes on the Intel® FPGAs and Programmable Devices Release Notes web page.