Elisa3
spi.h
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00001 /*
00002  * spi.h
00003  *
00004  *  Created on: 24-Jan-2009
00005  *      Author: Neil MacMillan
00006  *
00007  *  Macros and prototypes for using the AT90 as an SPI master.
00008  *
00009  *  References:
00010  *    Engelke, Stefan.  AVR-Lib/SPI.  http://www.tinkerer.eu/AVRLib/SPI
00011  *    Tanner, Justin.  LED Wheel: Code.  http://webhome.csc.uvic.ca/~mcheng/samples/led_wheel/wheel_demo.zip
00012  *    Atmel.  AT90USB1287 Hardware Manual.  http://www.atmel.com/dyn/resources/prod_documents/doc7593.pdf
00013  *
00014  *    All the hard work for this was done by [Engelke].
00015  */
00016 
00017 #ifndef SPI_H_
00018 #define SPI_H_
00019 
00020 #include <stdio.h>
00021 #include <avr/io.h>
00022 #include <stdlib.h>
00023 
00024 #include "variables.h"
00025 
00026 #ifdef __cplusplus
00027 extern "C" {
00028 #endif
00029 
00034 void initSPI();
00035 
00043 void SPI_ReadWrite_Block (uint8_t * data, uint8_t * buffer, uint8_t len);
00044 
00050 void SPI_Write_Block (uint8_t * data, uint8_t len);
00051 
00055 uint8_t SPI_Write_Byte (uint8_t data);
00056 
00057 void closeSPI();
00058 
00059 #ifdef __cplusplus
00060 } // extern "C"
00061 #endif
00062 
00063 #endif /* SPI_H_ */
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