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Discussions on the software and hardware for Atmel's STK standard.
By LEDblinkin
#173696
Hey all,
I've been playing around with microcontroller dev kits for a while, and am thinking it'd be fun to design a board myself for my next project.

I was looking over the ATMega32u4 product page (http://www.atmel.com/devices/atmega32u4 ... parameters) and saw that it listed it has two SPI peripherals, which is what I need for my project. However, when I look at the pinout on the datasheet, I only see mention of a single set of MOSI/MISO/SCK/SS pins. Is my mistake in how I'm reading the product page (that the chip supports two instances of an SPI peripheral that can be run in parallel) or in the datasheet (that there is only one set of SPI pins)?

Thanks!
User avatar
By Ross Robotics
#173704
The product page doesn't say that the SPI ports can be run in parallel. It states there are 2 parameters for SPI. Which means that you can run SPI in slave or master modes.