Intel® MAX® 10 FPGA Configuration User Guide

ID 683865
Date 3/27/2023
Document Table of Contents Remote System Upgrade Flow

Both the application configuration images, image 0 and image 1, are stored in the CFM. The Intel® MAX® 10 device loads either one of the application configuration image from the CFM.
Figure 3. Remote System Upgrade Flow for Intel® MAX® 10 Devices

The remote system upgrade feature detects errors in the following sequence:

  1. After power-up, the device samples the CONFIG_SEL pin to determine which application configuration image to load. The CONFIG_SEL pin setting can be overwritten by the input register of the remote system upgrade circuitry for the subsequent reconfiguration.
  2. If an error occurs, the remote system upgrade feature reverts by loading the other application configuration image. These errors cause the remote system upgrade feature to load another application configuration image:
    • Internal CRC error
    • User watchdog timer time-out
  3. Once the revert configuration completes and the device is in user mode, you can use the remote system upgrade circuitry to query the cause of error and which application image failed.
  4. If a second error occurs, the device waits for a reconfiguration source. If the Auto-restart configuration after error is enabled, the device will reconfigure without waiting for any reconfiguration source.
  5. Reconfiguration is triggered by the following actions:
    • Driving the nSTATUS low externally.
    • Driving the nCONFIG low externally.
    • Driving RU_nCONFIG low.

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