32 lines
612 B
C++
32 lines
612 B
C++
#pragma once
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#include <avr/io.h>
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#if defined __AVR_ATmega328P__
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#define SPI_DDR DDRB
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#define SPI_PORT PORTB
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#define SPI_SCK PB5
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#define SPI_MISO PB4
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#define SPI_MOSI PB3
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#define SPI_CS PB2
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#elif defined __AVR_ATmega32__ || defined __AVR_ATmega16__
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#define SPI_PORT PORTB
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#define SPI_DDR DDRB
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#define SPI_SCK PB7
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#define SPI_MOSI PB5
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#define SPI_CS PB4
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#endif
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namespace spi
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{
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void init();
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uint8_t transfer(uint8_t data);
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inline void cs_low() {SPI_PORT &= ~(1<<SPI_CS);}
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inline void cs_high() {SPI_PORT |= (1<<SPI_CS);}
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} // namespace spi
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