Article ID: 000086536 Content Type: Troubleshooting Last Reviewed: 07/18/2017

Why does Cyclone V SoC not boot from N25Q512 QSPI after reset issued during flash memory command execution?

Environment

  • Intel® Quartus® Prime Pro Edition
  • BUILT IN - ARTICLE INTRO SECOND COMPONENT
    Description

    When the Cyclone® V SoC on the Altera Development Kit is reset during QSPI erase or write command execution, subsequent boots from N25Q512 QSPI flash may fail due to unexpected status received from memory in u-boot initialization.  

    The N25Q512 QSPI device stays in an unexpected state until board is power cycled or QSPI is reset by SW command. The hardware reset of N25Q512 QSPI does not recover memory to expected state required by u-boot driver. 

    Resolution

    There is no plan to replace Micron's N25Q512 QSPI memory on Cyclone V SoC Altera Development Kit.

    The QSPI memory can be recovered by SW reset commands (Reset Enable, Reset Memory). 

    Related Products

    This article applies to 5 products

    Cyclone® V SX SoC FPGA
    Cyclone® V ST SoC FPGA
    Cyclone® V SE SoC FPGA
    Arria® V SX SoC FPGA
    Arria® V ST SoC FPGA

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