Slave firmware for InterconnectIO Board

Firmware information of the slave devices used on the interconnectIO Board of the First TestStation

Features

• The Pico slave firmware acts as the I2C slave controller for the InterconnectIO Box. The Pico slave receives 2 bytes of information (command + parameters) from the Master Pico, processes the command, and returns an answer if necessary.
• The Pico slave devices are used to perform only basic GPIO actions, which do not require speed.
• Commands supported by the Pico slave firmware are listed in the GitHub repository InterconnectIO_Slave. For details, refer to the readme.md
• The I2C addresses used to communicate with the Pico slaves are defined by two hardware lines connected to ground (0) or left open (1).
• The slave firmware needs to be loaded onto the three Pico controllers and installed at the location marked in the picture above.

Flowchart

• The flowchart below illustrates the algorithm used to process commands received from the Master Pico on the I2C port.