infomem.h

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/*
Copyright 2006, Freie Universitaet Berlin. All rights reserved.

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Systems and Telematics group.

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- Neither the name of Freie Universitaet Berlin (FUB) nor the names of its
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this software without specific prior written permission.

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This implementation was developed by the CST group at the FUB.

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*/

/**
 * @file		infomem.h
 * @addtogroup		storage
 * @brief		MSP430 Infomemory Storage
 * 
 * @author		Michael Baar	<[e-mail]>
 */

#ifndef INFOMEM_H
#define INFOMEM_H

#if !defined(INFOMEM_START) || !defined(INFOMEM_BLOCK_SIZE)
  #error "infomem position (INFOMEM_START) and block size (INFOMEM_BLOCK_SIZE) need to be defined for the platform"
#endif

/**
 * @brief	Read bytes from infomemory
 * @param[out]		buffer		Pointer to buffer for read data
 * @param[in]		offset		Offset in infomemory (0-254)
 * @param[in]		size		Number of bytes to read
 */
void infomem_read(void *buffer, unsigned int offset, unsigned char size);

/**
 * @brief	Write bytes to infomemory
 * @param[in]		offset		Offset in infomemory (0-254)
 * @param[in]		count		Number of items following
 *					each item is a pair pointer, length
 *
 * Example: Infomem_write( 0, 2, &a,3, &b,1 );
 *
 * \note: The MSP430 has two consecutive blocks of infomemory.
 *        Each is 128 bytes large. The offset is the relative address 
 *        starting at the beginning of the first block. You can write an 
 *        arbitrary number of bytes at any offset, but this function 
 *        cannot write across the two blocks of infomemory.
 */
bool infomem_write(unsigned int offset, unsigned char count, ...);

#endif // !INFOMEM_H