SPI

APPLICATION FILE PAGE

SPI.DSN

SPIM.ASM

SPIST.ASM

SPISR.ASM

Proteus VSM design file created as ISIS interactive schematic

Source code file MASTER PROGRAM (U1)

Source code file SLAVE TRANSMITTER (U2)

Source code program SLAVE RECEIVER (U3)

 

OPERATION

 

This system demonstrates SPI serial communication. Each chip has its own program.

 

Plain BCD numerical data is generated by the slave transmitter from a thumbwheel switch, and read by the master using the slave select input.

 

The master then re-sends the same data to the slave receiver, which responds to an SPI interrupt when data input is detected.