Tag Archives: Redwood EDA

13-Year-Old, Nicholas Sharkey, Creates a RISC-V Core

It was also a real testament to Nicholas’s thirst for knowledge and the outside-the-box thinking of his home-schooling parents, Rasa and Mike. Having a 13-year-old of my own, I was particularly impressed by Nicholas’s willingness to put himself out there, asking questions and joining Zoom calls (not to mention his familiarity with Linux). I’ve since learned that Nicholas has been awarded in spelling bees and math competitions and is an expert at solving the Rubik’s Cube. Somehow, I’m not surprised.

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From VLSI to System Design (SoC) – The choice of SPI

SPI model is a master/slave model. There’s some SPI master which determines who gets to transmit and who gets to receive. The output from SPI master is called MOSI (Master Out Slave In). If you have 2 slaves, slave 1 and slave 2, as shown below, MOSI goes to all the slaves .Then you have another line MISO (Master In Slave Out). All the wires are connected, as shown in below image. Then you have a master only function called SCLK, which goes to all the slaves. Now also, there must be a slave select (SS) for S1 and a slave select for S2.

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