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Altera_Forum
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8 years ago

SPI through FPGA not working on Cyclone V SoC Terasic DE1SoC board

Hi, I have connected the external SPI device through FPGA fabric to GPIO pins on the board. I'm using SPIM0 (0xFFF00000) I have created new preloader, uboot and linux distro, rbf and dtb file, e...
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Altera_Forum
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8 years ago

If you want more information on interfacing AD7791 to FPGA via NIOS, there's a design example here https://wiki.analog.com/resources/fpga/altera/bemicro/cn0216

but its for a custom BeMicro kit. The point is you can get a fair idea on the interfacing and SW drivers from this example. This may help you setup your design or troubleshoot it.