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Altera_Forum
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15 years ago

Cyclone III configuration query

Hi, I have a query for CycloneIII device configuration. Can SPI based flash memories like 25LC512 be used with Cyclone III device for Active serial configuration mode? If not, then what ...
Altera_Forum's avatar
Altera_Forum
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15 years ago

Altera only officially supports AS configuration from their own EPCS devices. However, if you can find an SPI flash device that is similar enough to the EPCS parts, they will work.

I just checked very quickly but I have a feeling the 24LC512 would not be a suitable replacement. The 24LC512 supports a max clock of 20MHz which is too slow for the Cyclone III.

One example of a part that I know works well is the Numonyx M25P64. If you search these forums you can find other examples that people have indicated success with.