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Altera_Forum
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16 years ago

Writing to EPCS sectors

Hello, all, I have been struggling with this and I hope someone can shead some light. My project has a 3C25 along with a EPCS16 device. I would like to write some data to the EPCS16 some...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Hey jta1,

"erase block" is different than "sector/block". There are frequently only 1 or 2 erase blocks on most any flash device, whereas the number of sectors depends upon the sector size (commonly 128k or 64k) and overall size of the flash.

In your case, I think you should set the "block_offset" to 0 and the data_offset to 20*sector_size....0x280000 (128k sector_size), 0x140000 (64k sector_size). I don't recall exactly what the sector size is for an EPCS 16 device, but I'm pretty sure you can look it up :-)

Cheers, and Good luck!

- slacker