Rainbow-electronics ATmega64C1 Manual do Utilizador descarregar pdf (Página 161)

100

101

161

7647A–AVR–02/08

ATmega32/64/M1/C1

Note: 1. The example code assumes that the part specific header file is included.

Assembly Code Example

(1)

SPI_SlaveInit:

; Set MISO output, all others input

ldi r17,(1<<DD_MISO)

out DDR_SPI,r17

; Enable SPI

ldi r17,(1<<SPE)

out SPCR,r17

ret

SPI_SlaveReceive:

; Wait for reception complete

sbis SPSR,SPIF

rjmp SPI_SlaveReceive

; Read received data and return

in r16,SPDR

ret

C Code Example

(1)

void SPI_SlaveInit(void)

{

/* Set MISO output, all others input */

DDR_SPI = (1<<DD_MISO);

/* Enable SPI */

SPCR = (1<<SPE);

}

char SPI_SlaveReceive(void)

{

/* Wait for reception complete */

while(!(SPSR & (1<<SPIF)))

;

/* Return data register */

return SPDR;

}

1 2 ... 156 157 158 159 160 161 162 163 164 165 166 ... 365 366

Comentários a estes Manuais

Sem comentários

Rainbow-electronics ATmega64C1 Manual do Utilizador Página 161

Comentários a estes Manuais

Manuais e produtos relacionados com Sensores Rainbow-electronics ATmega64C1