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Altera_Forum
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10 years ago

Qsys SPI(3 Wire Serial) control

Hey, I am trying to build a SPI interface using the Qsys tool for a Cyclone IV I am using but I can't seem to figure out how to use the SPI (3 Wire Serial) IP in the catalog. It requires an Avalon M...
Altera_Forum's avatar
Altera_Forum
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10 years ago

I've not installed Quartus 16. However, I'd be amazed if they've changed any part of the SPI core when moving to it.

If using the core as a master - to connect to slaves external to the FPGA - then yes. You are going to need to export the SPI signals (SCLK, SS_N, MISO & MOSI) and assign them to pins in the pin planner.

Chapter 9 of the "embedded peripherals ip user guide (https://www.altera.com/content/dam/altera-www/global/en_us/pdfs/literature/ug/ug_embedded_ip.pdf)" covers the core, and how to configure it, in detail.

Cheers,

Alex