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How many SPI interfaces does the OPI PC Plus have?

MarshallMCH
in Allwinner sunxi

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I'm looking to add two ENC28J60 Ethernet interfaces to my OPI, does it have two SPI interfaces available?  From my reading, it appears the onboard NAND flash takes up one SPI interface, but I cannot find any information on whether there is 1 or 2 other SPI interfaces available? 

  • Author

So it looks like SPI0 has 4 pins, but SPI1 only has 2 pins?  Can you clarify if both are available, or if SPI1 is already assigned to NAND? 

spi1_opi_plus.jpg.53831c169739a93c9ce236aa7090eec1.jpg

MOSI and MISO of SPI1 are used for other purposes...

 

But since SPI is a bus you might use 2 different CS pins to use your SPI devices on the same bus. Read through this things might help a little bit.

http://linux-sunxi.org/SPIdev

 

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