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Altera_Forum's avatar
Altera_Forum
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14 years ago

How to use an EPCS Flash

Hallo together, I'm actually trying to save data from NIOS II into an EPCS64 device. My system contains an EPCS controller. But now the confusion is complete, there are so many files for usin...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

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Because I can boot from this flash, it should work principally with this device!? Right?

I suggest you to firstly debug init of epcs verifying flash->silicon_id is returned as an EPCS64 (16h); then you should check if alt_flash_device_register is correctly performed with a good ret_code. After this 2 easy check start the difficult debugging of alt_flash_open_dev trying to understand if alt_find_dev is successful and then what is performed at dev->open call.

I would do in this way...

Good luck :)

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Is 16h the id?

What's the id for an EPCS16?

With the id there could maybe a problem. Because, to boot from Flash I had to check the "Disable EPCS id check" option while converting the programming file.