AN 709: HPS SoC Boot Guide - Cyclone V SoC Development Kit

ID 683265
Date 1/27/2016
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1.2.2.5. FPGA Fallback Boot

When the Boot ROM did not successfully load any image, it tries to boot from an FPGA fallback image:

  • Checks if the FPGA is configured and in user mode
  • Verifies that the fallback image was enabled in the FPGA fabric
  • Jumps to address 0xC0000000, corresponding to offset 0 on the HPS-2-FPGA bridge
Note: The configuration on the FPGA side needs to enable the signal notifying the HPS that an FPGA fallback image is available (f2h_boot_from_fpga_on_failure).