There is very little documentation on the I2C controllers implemented in the Pi 5, but as they are based on the Synopsys DW_apb_i2c (v2.02) their details are described in the company’s databook which ...

Last time, I gave you an overview of what you get from I2C, basics like addressing, interface speeds, and a breakdown of pullups. Today, let’s continue looking into I2C capabilities and requirements – ...

Now we can re-write a Blinky style program to find out how fast the Pi 5 can toggle a GPIO line. We first have to map the peripherals area into user space and set up all of the addresses we want to ...