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Altera_Forum
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14 years ago

Loading SRAM,SDRAM or FLASH on DE1, using Linux, without Qsys, SOPC or NIOS

I have a design which needs data preloaded into one or more of NVRAM and/or SRAM and/or SDRAM on a DE1. I am using Quartus II Web Edition 11.1 sp1. I am not using Qsys, SOPC or NIOS, as the d...
Altera_Forum's avatar
Altera_Forum
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14 years ago

Flash memory is probably a parallel memory chip while the EPCS is a serial configuration device for the FPGA. Both are able to contain the .elf file. Do you really have both memories on the board? Do you intend to use one for the FPGA configuration and another one for the software?

With the EPCS there is a bootloader in the controller that copies the .elf contents to main RAM and runs the application there. With a parallel flash you have the choice between using a bootloader that would also copy the application to main memory, or execute the software directly from the flash.