1 SPI: The serial peripheral interface
Ben Eater's clear hardware-level explanation of SPI is widely suggested to anyone trying to understand the protocol or debug a misbehaving bus.
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Ben Eater's clear hardware-level explanation of SPI is widely suggested to anyone trying to understand the protocol or debug a misbehaving bus.
Often suggested for understanding how keyboards talk to a host, with Ben Eater walking through the clocked PS/2 signalling and the codes sent for each key.
Electronoobs gives a short animated overview of UART, SPI and I2C, recommended for filling gaps and understanding how the common protocols differ.
Praised as a visual walk-through of the I2C protocol, driving the bus by hand so each clock and data transition can be seen.