Device Family: Intel® Stratix® 10

Intel Software: Quartus Prime Pro

Type: Answers

Area: Component, Tools


Last Modified: October 23, 2020
Version Found: v20.3
Bug ID: 2205702846

Could not allocate the following pins to any bank: - pins at mV in the Intel® FPGA Power and Thermal Calculator (PTC)

Description

Due to a problem with the Intel® FPGA Power and Thermal Calculator (PTC) in Intel® Quartus® Prime Pro Edition software version 20.3 and earlier, you may see this error even if there are still available pins when differential input pins are used and the VCCIO voltages of all I/O banks are not 2.5V in Intel® Stratix® 10 devices.

Here is an example.

Device: 1SG280H
Package: F50
Number of user I/O: 672
Number of I/O bank: 14
Number of pin pre I/O bank: 48
User I/O usage:
1.2 V output * 625 pins
LVDS input * 1 pair
In this case, since 625 pins are used for 1.2V output, the VCCIO voltages of 14 I/O banks are 1.2V.

LVDS input is powered by VCCPT, not VCCIO. So a pair of LVDS input should be able to be assigned to remaining pins, but the PTC incorrectly displays an error like shown in the following image.
 

Workaround/Fix

You can safely ignore this error.

This problem is scheduled to be fixed in future release of the Intel® FPGA Power and Thermal Calculator (PTC) in the Intel® Quartus® Prime Pro Edition software.