110 lines
4.2 KiB
C
110 lines
4.2 KiB
C
#ifndef _MEMORY_H
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#define _MEMORY_H
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/**************************************************************************
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* Written by Marcin O'BenY Benka <obeny@obeny.net>
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* Version 1.1 (20091124)
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*
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* NOTE:
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*
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* Operations on volatile SRAM memory.
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**************************************************************************/
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/***************************************************************************
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* INCLUDES
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***************************************************************************/
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#include "global.h"
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/***************************************************************************
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* DEFINITIONS
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***************************************************************************/
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/* GLOBAL: data send/receive buffer for communication with PC */
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extern BYTE data_buffer[262];
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/***************************************************************************
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* FUNCTIONS
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***************************************************************************/
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/* clear whole memory, writting 0x00 to each cell */
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/* -----------------------------------------------------------------------
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RETURN VAL : TRUE on success, FALSE on fail
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ARGS : NONE
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* ----------------------------------------------------------------------- */
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BOOL memoryClear();
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/* test SRAM memory, writting different patterns */
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/* -----------------------------------------------------------------------
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RETURN VAL : TRUE on success, FALSE on fail
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ARGS : NONE
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* ----------------------------------------------------------------------- */
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BOOL memoryTest();
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/* write byte to memory */
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/* -----------------------------------------------------------------------
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RETURN VAL : TRUE on success, FALSE on fail
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ARGS : addr - address in memory matrix
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byte - byte to write to memory
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* ----------------------------------------------------------------------- */
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BOOL memoryWrite(const UINT16 addr, const BYTE byte);
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/* write block of data to memory */
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/* -----------------------------------------------------------------------
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RETURN VAL : TRUE on success, FALSE on fail
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ARGS : addr - address of first byte in memory matrix
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size - bytes number to write to memory
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buffer - pointer to data buffer with data to write
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* ----------------------------------------------------------------------- */
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BOOL memoryWriteBlock(const UINT16 addr, const UINT16 size, const BYTE* buffer);
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/* read byte from memory */
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/* -----------------------------------------------------------------------
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RETURN VAL : pointer to byte read
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ARGS : addr - address in memory matrix
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* ----------------------------------------------------------------------- */
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BYTE* memoryRead(const UINT16 addr);
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/* read block of data from memory */
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/* -----------------------------------------------------------------------
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RETURN VAL : pointer to data read
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ARGS : addr - address of first byte in memory matrix
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size - bytes number to read from memory
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buffer - pointer to buffer where data will be written
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* ----------------------------------------------------------------------- */
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BYTE* memoryReadBlock(const UINT16 addr, const UINT16 size, BYTE* buffer);
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/* enable ECU to read from memory */
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/* -----------------------------------------------------------------------
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RETURN VAL : NONE
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ARGS : NONE
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* ----------------------------------------------------------------------- */
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void setMemoryAccessEcuRead();
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/* enable MCU to read from memory */
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/* -----------------------------------------------------------------------
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RETURN VAL : NONE
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ARGS : NONE
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* ----------------------------------------------------------------------- */
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void setMemoryAccessMcuRead();
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/* enable MCU to write to memory */
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/* -----------------------------------------------------------------------
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RETURN VAL : NONE
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ARGS : NONE
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* ----------------------------------------------------------------------- */
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void setMemoryAccessMcuWrite();
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/* set memory address */
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/* -----------------------------------------------------------------------
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RETURN VAL : NONE
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ARGS : NONE
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* ----------------------------------------------------------------------- */
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void setMemoryAddress(const UINT16 addr);
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#endif /* _MEMORY_H */
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/* END */
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