Article ID: 000086763 Content Type: Troubleshooting Last Reviewed: 01/03/2023

Why do I see reconfiguration failure in Intel® Stratix® 10 devices when using the Temperature or Voltage Sensor Intel® Stratix® 10 FPGA IP?


  • Intel® Quartus® Prime Pro Edition
  • Voltage Sensor Intel® Stratix® 10 FPGA IP
  • Temperature Sensor Intel® Stratix® 10 FPGA IP

    During user mode, when asserting the nCONFIG pin low, you might observe unexpected behavior where nSTATUS stays high, which prevents the restarting of the configuration process for Intel® Stratix® 10 devices. This is due to an SDM mailbox flooding event using the Temperature or Voltage Sensor Intel Stratix 10 FPGA IP. A request to perform reconfiguration cannot interrupt the SDM process causing the configuration process to fail.




    During normal user mode operation, to prevent the SDM mailbox flooding event, do the following :

    1. In each Sensor IP, after issuing one request, wait for the response
    2. After the response is received, wait for 1 second before issuing a new request

    To perform reconfiguration:

    1. Before asserting nCONFIG, disable each Sensor IP to prevent any sampling request to the Temperature or Voltage Intel Stratix 10 FPGA IP
    2. Wait for at least 1 second
    3. Assert nCONFIG to start the reconfiguration


    Related Products

    This article applies to 1 products

    Intel® Stratix® 10 FPGAs and SoC FPGAs



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