Forum Discussion
EugenyB
Occasional Contributor
Occasional ContributorPerforming 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...
EugenyBOccasional Contributor
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?
EugenyBOccasional Contributor
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.
