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Altera_Forum
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16 years ago

NIOS SOPC Flash Memory Interface (CFI)

I am trying to read the Query values from a CFI compliant flash device, a PC28F128P30b85. I have implemented a NIOS SOPC solution with a tri-state bridge module and cfi-flash module. The cfi-...
Altera_Forum's avatar
Altera_Forum
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16 years ago

IOWR and IORD use word offsets (32 bit word offsets)

The _8/16/32DIRECT macros use byte offsets.

My preference are the _xxDIRECT macros since the master is providing byte addresses to the fabric. The DIRECT macros give you control over the byte enables too.