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Altera_Forum
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22 years ago

Cyclone SL811HS interrupts

I think there's a problem with the Cyclone Development Board. I am using the NIOS-II Kitchen sink design, and I have coded a small USB driver for the board. I am now capable of performing a...
Altera_Forum's avatar
Altera_Forum
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22 years ago

The interface component we created to connect the SL811HS to the Avalon bus has an extra facility for enabling/diabling interrupts. The bit to allow interrupts to pass through lives in the 3rd register of our interface component (usb_base_address+8) at bit 2. Writing a 0x4 to this register will enable interrupts from the SL811HS to reach the Nios processor.

I am emailing you the most recent version of our document describing our USB reference project (a similar document should have come on the CD with your board). It contains a description of our SL811HS-to-Avalon interface.

Dennis Scott

Microtronix Datacom Ltd.