32 lines
521 B
C
32 lines
521 B
C
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/*
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spi lib 0x01
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copyright (c) Davide Gironi, 2012
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References:
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- This library is based upon SPI avr lib by Stefan Engelke
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http://www.tinkerer.eu/AVRLib/SPI
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Released under GPLv3.
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Please refer to LICENSE file for licensing information.
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*/
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#ifndef _SPI_H_
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#define _SPI_H_
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#include <avr/io.h>
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//spi ports
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#define SPI_DDR DDRB
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#define SPI_PORT PORTB
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#define SPI_MISO PB4
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#define SPI_MOSI PB3
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#define SPI_SCK PB5
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#define SPI_SS PB2
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extern void spi_init();
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extern uint8_t spi_writereadbyte(uint8_t data);
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#endif
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