Honored Contributor
Honored ContributorIt seems you're right and I'll upgrade soon to make tests !
I just read the following in the last "Nios II Embedded Design Suite Release Notes and Errata" July 10 : Flash Programmer Errata This section describes in detail the Nios II EDS issues related to the flash programmer. Unable to Configure FPGA from Flash with Parallel Flash Loader If you program an FPGA image to flash memory on a board that utilizes the Parallel Flash Loader, the FPGA subsequently fails to load from flash memory. This issue arises because the sof2flash utility generates a flash file with an incompatible Programmer Object File (.pof) bitstream format. Affected Configurations This issue impacts the following target hardware: ■ The Stratix IV GX FPGA Development Kit ■ The Arria® II GX FPGA Development Kit ■ Any hardware using the Parallel Flash Loader Workaround 1. Visit the MySupport website and request Nios II EDS patch 0.73. Alternatively, upgrade to the Nios II EDS v. 9.1 SP1 or later. 2. Invoke sof2flash with the following options: ■ --pfl ■ --optionsbits=<option bit address> With these options, sof2flash generates a flash file with a compatible .pof file bitstream format. Solution Status : Fixed in v. 9.1 SP1 of the Nios II EDS