Mikroelektronika MIKROE-742 데이터 시트

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- SOFTWARE AND HARDWARE SOLUTIONS FOR EMBEDDED WORLD

CHAPTER 6

MCU must have SPI module.

// Set SPI to the Master Mode, clock = Fosc/32 , clock idle
level is high, data sampled on falling edge:

SPI1_Init_Advanced(_SPI_MASTER, _SPI_FCY_DIV32,
_SPI_CLK_HI_TRAILING);

function SPI1_Read(buffer: byte): byte;

Received data.

Reads one byte from the SPI bus.

Parameters : 

- 

buffer

: dummy data for clock generation (see device Datasheet for SPI mod

ules implementation details) 

SPI module must be initialized before using this function. See SPI1_Init and
SPI1_Init_Advanced routines.

// read a byte from the SPI bus 
var take, dummy1 : byte ;
...
take := SPI1_Read(dummy1);

procedure SPI1_Write(wrdata: byte);

Nothing.

Writes byte via the SPI bus.

Parameters : 

- 

wrdata

: data to be sent 

SPI module must be initialized before using this function. See SPI1_Init and
SPI1_Init_Advanced routines.

// write a byte to the SPI bus
var buffer : byte;
...
SPI1_Write(buffer);