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Altera_Forum
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20 years ago

User Guide Puzzle

Turn to page 1-6 of the document of "Nios II Flash Programmer User Guide". ¡°The flash programmer first checks the size of the FPGA configuration data, then appends the software content to the end of...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

The firmware ROM inside the EPCS controller has software that examines the contents of EPCS flash, searches for the beginning of FPGA configuration data (if present), and extracts the precise length of that configuration data. Then, the EPCS is accessed at an offset equal to that length, which is where the .elf data will be programmed, and where the firmware ROM will start its .elf copy/relocation job.