Forum Discussion

Occasional Contributor

5 years ago

Performing user access to the configuration serial flash device

Cyclone III. I need access to the serial flash device (W25Q128) after configuration completes. I am unable to select pins connected to the flash chip using my "user" code. Whatever I set in the dev...

Ash_R_Intel

Regular Contributor

5 years ago

Hi Eugeny,

The ASDO pin is a dedicated output pin in Active Serial (AS) mode. It can be an input during configuration while in Passive Serial (PS) and Fast Passive Parallel (FPP) modes.

It can be used as user I/O after configuration.

Refer below Pin Connection Guidelines:

https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/dp/cyclone3/pcg-01003.pdf

Regards.

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Performing user access to the configuration serial flash device

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