Occasional Contributor
Regular ContributorHi 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.
Occasional Contributor>It can be used as user I/O after configuration.
Do I understand it properly - if I use AS configuration mode, the ASDO pin will only be an output in user mode? Or can I configure it do be bi-directional?
Occasional ContributorSome progress here. I was able to allocate 4 serial flash pins in the design, and project compiled without problems, declaring DI/DO as input/output pins. So now testing stage.
I was doing the stupid mistake - trying to allocate these 4 pins of serial flash without removing cycloneii_asmiblock from the design, and this cycloneii_asmiblock was hijacking programming pins before high level module and of course the module was failing to see these pins as available for the design.
