Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 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
Icon for Honored Contributor rankHonored Contributor
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