Extend IO Ports using PIC

Extend I/O Ports using PIC Microcontroller

The mikroC PRO for PIC provides a library for communication with the Microchip’s Port Expander MCP23S17 via SPI interface. Connections of the PIC compliant MCU and MCP23S17 is given on the schematic at the bottom of this page.   Important : The library uses the SPI module for communication. User must initialize the appropriate SPI […]

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