Knowledge Base Article
Can the SDM firmware cause an external voltage regulator to apply an incorrect voltage?
Description
Due to a problem in the Intel® Quartus® Prime Pro Edition Software Version 20.1 to 20.4, you may see that the voltage ID-enabled voltage regulators (VR) apply a voltage beyond the device's recommended operating conditions for Vcc and Vccp.
This problem may occur in the following conditions
- The device is an Intel® Stratix® 10 FPGA with SmartVID enabled
- The FPGA is master on the PMBus
- Slave mode is not affected
- VR using Direct Mode with m, b (non-zero value), R coefficient
- Linear Mode is not affected
- Unit is in Volts
- Unit in Millivolts(mV) is not affected
Resolution
This problem is fixed starting with the Intel® Quartus® Prime Pro Edition Software version 21.1.
To identify if your project is affected by this problem, run this script using the following command from your project directory.
- quartus_cdb -t check_vr_mode_usage.tcl
See script readme for more details. If your project is affected, download and install the relevant patch.
To resolve this problem, update the latest device manager firmware for the Intel® Quartus® Prime Pro Edition Software v21.2, 21.3, 21.4, 22.1, 22.2, and 22.3.
The latest device manager firmware versions are available from the following link:
What is the latest device firmware for Intel® Agilex™ and Intel® Stratix® 10 devices?
If the issue is not resolved after the patch is installed, or for further assistance, submit a request at the My Intel support page indicating reference HSD number 14012171603 and escalation path "PSG-PG-FPGA!"