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/*
* spi_430.h - common function declarations for different SPI implementations
*
* Copyright (c) 2012 by Rick Kimball <rick@kimballsoftware.com>
* spi abstraction api for msp430
*
* This file is free software; you can redistribute it and/or modify
* it under the terms of either the GNU General Public License version 2
* or the GNU Lesser General Public License version 2.1, both as
* published by the Free Software Foundation.
*
*/
#ifndef _SPI_430_H_
#define _SPI_430_H_
#if defined(__MSP430_HAS_USCI__)
#define SPI_CLOCK_DIV1 1
#define SPI_CLOCK_DIV2 2
#define SPI_CLOCK_DIV4 4
#define SPI_CLOCK_DIV8 8
#define SPI_CLOCK_DIV16 16
#define SPI_CLOCK_DIV32 32
#define SPI_CLOCK_DIV64 64
#define SPI_CLOCK_DIV128 128
#elif defined(__MSP430_HAS_USI__)
#define SPI_CLOCK_DIV1 0
#define SPI_CLOCK_DIV2 USIDIV_1
#define SPI_CLOCK_DIV4 USIDIV_2
#define SPI_CLOCK_DIV8 USIDIV_3
#define SPI_CLOCK_DIV16 USIDIV_4
#define SPI_CLOCK_DIV32 USIDIV_5
#define SPI_CLOCK_DIV64 USIDIV_6
#define SPI_CLOCK_DIV128 USIDIV_7
#else
#error "SPI not supported by hardware on this chip"
#endif
void spi_initialize(void);
void spi_disable(void);
uint8_t spi_send(const uint8_t);
void spi_set_bitorder(const uint8_t);
void spi_set_datamode(const uint8_t);
void spi_set_divisor(const uint16_t clkdivider);
#endif /*_SPI_430_H_*/
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