Pi 4 Board-to-Board Communication #piday #raspberrypi @Raspberry_Pi « Adafruit Industries – Makers, hackers, artists, designers and engineers!

Pi 4 Board-to-Board Communication #piday #raspberrypi @Raspberry_Pi « Adafruit Industries – Makers, hackers, artists, designers and engineers!

by way of Raspberry Pi Projects

On this lab, you'll set up UART based mostly communication channels between the Pi 4 and the HiFive 1 boards.

Half 0: Setup the UART connections (for TAs)
On this half, we are going to join the HiFive1 and the Raspberry Pi 4 boards by way of two UART channels.

(Observe that this step shall be carried out by the TAs.)

The Pi 4 has 4 UARTs and we are going to use two of them (uart2 and uart3). Add the next line on the finish of the /boot/config.txt file to allow uart2 and uart3.

dtoverlay=uart2,115200 dtoverlay=uart3,115200

After rebooting the system, /dev/ttyAMA1 and /dev/ttyAMA2 shall be created.

Read more.

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