Why does the Altera® FPGA Temperature Sensor IP core readout always return 0 when using Quartus® Prime Pro Edition software version  20.1?

Description

Due to a problem in the Quartus® Prime Pro Edition Software version 20.1, you may see the Intel® FPGA Temperature Sensor IP core always return code 0 when reading the junction temperature on Arria® 10 FPGA or Cyclone® 10 GX FPGA devices.

Resolution

To work around this problem, a patch is available for the Quartus® Prime Pro Edition Software version 20.1.
Download and install Patch 0.18 for 20.1 below.

This problem is fixed starting with the Quartus® Prime Pro Edition Software version 20.2.