134 lines
6.0 KiB
C
134 lines
6.0 KiB
C
//****************************************************************************
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// File Name XC8Memory.c
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//----------------------------------------------------------------------------
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// Derivatives Infineon XC88x AA and AB
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//
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// Description Sets of function to handle the memory in the XC88x AA.
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// In particular, the Flash handling is taken care of here.
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//
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//----------------------------------------------------------------------------
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// Date 14.03.2006 10:48:38
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// Copyright (c) 2006 Infineon Technologies
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//****************************************************************************
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#include "XC8Memory.h"
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/*
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// **************************************************************************
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// Function Name: void LoadXD2WLBuf (unsigned char xdata *address)
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// Description: Load 32byte of data from the XDATA to the WLBuf
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// WLBuf is a buffer that is located in the IDATA-space
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// Input Parameter: *address ==> pointer to the address
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// in the XDATA memory
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// Output Parameter: none
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// NOTE: Execution time and code can saved,
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// if you have the possibility to write directly in
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// the buffer
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// **************************************************************************
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void LoadXD2WLBuf(unsigned char xdata *address)
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{
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// Loads Wordline Buffer with 32bytes from given address in XDATA
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unsigned char i;
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for (i=0; i<BYTES_PER_WORDLINE; i++) {WLBuf[i] = *address++;}
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}
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// ***********************************************************************
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// Function Name: void LoadConst2WLBuf (unsigned char code *address)
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// Description: Load 32byte of data from the CODE to the WLBuf
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// WLBuf is a buffer that is located in the IDATA-space
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// This is used to copy data from one Flash location to another.
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// Input Parameter: *address ==> pointer to the address
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// in the CODE memory
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// Output Parameter: none
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// NOTE: Execution time and code can saved,
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// if you have the possibility to write directly in
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// the buffer
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// ***********************************************************************
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void LoadConst2WLBuf(unsigned char code *address)
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{
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// Loads Wordline Buffer with 32bytes from given address in CODE
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unsigned char i;
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for (i=0; i<BYTES_PER_WORDLINE; i++)
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{ WLBuf[i] = *address++;
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}
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}
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// **************************************************************************************
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// Function Name: bit ProgWL (unsigned char code *AdrBnkXSecYWLZ)
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// Description: Program the data from the WLBuf to the location in the Flash
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// which is pointed by *AdrBnkXSecYWLZ
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// Input Parameter: *AdrBnkXSecYWLZ ==> pointer to the location in the FLASH.
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// The address must be aligned to a 32byte boundary
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// Output Parameter: 1 = Success
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// 0 = Fail
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// Note: used Stack Size = 12
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// **************************************************************************************
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bit ProgWL(unsigned char code *AdrBnkXSecYWLZ)
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{
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unsigned int i;
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i = AdrBnkXSecYWLZ;
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MEM_DPH = i>>8;
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MEM_DPL = i;
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return (FlProg(&WLBuf[0]));
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}
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// *************************************************************************************
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// Function Name: void LoadConst2XD (unsigned char xdata *dstaddress,
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// unsigned char code *srcaddress, unsigned int length)
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// Description: Copy the data from the CODE memory to XDATA memory
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// Input Parameter: *srcaddress ==> pointer to the location in the FLASH/EEPROM.
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// lenght ==> The number of byte to be copied
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// Output Parameter: *dstaddress ==> pointer to the location in the XDATA memory.
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// The data will be copied to this location
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// NOTE: Execution time and code can saved,
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// if you have the possibility to write directly in
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// the buffer
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// *************************************************************************************
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void LoadConst2XD(unsigned char xdata *dstaddress, unsigned char code *srcaddress, unsigned char length)
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{
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// Loads number of constants to XDATA at given addresses
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unsigned char i;
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for (i=0; i<length; i++)
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{ *dstaddress++ = *srcaddress++;
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}
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}
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// *************************************************************************************
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// Function Name: void LoadXD2XD (unsigned char xdata *dstaddress,
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// unsigned char xdata *srcaddress, unsigned int length)
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// Description: Copy the data from the XDATA memory to XDATA memory
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// Input Parameter: *srcaddress ==> pointer to the location in the XDATA memory.
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// No byte alignment is necessary
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// lenght ==> The number of byte to be copied
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// Output Parameter: *dstaddress ==> pointer to the location in the XDATA memory.
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// The data will be copied to this location
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//
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// NOTE: Execution time and code can saved,
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// if you have the possibility to write directly in
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// the buffer
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// *************************************************************************************
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void LoadXD2XD(unsigned char xdata *dstaddress, unsigned char xdata *srcaddress, unsigned int length)
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{
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// Copies number of bytes in XDATA to XDATA at given addresses
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unsigned int i;
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for (i=0; i<length; i++)
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{ *dstaddress++ = *srcaddress++;
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}
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}
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// *************************************************************************************
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// Function Name: unsigned char ReadConst (unsigned char code *address)
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// Description: Read from CODE memory
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// Input Parameter: *address ==> pointer to the location in the CODE memory.
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// No byte alignment is necessary
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// Return Value: Data Byte
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// *************************************************************************************
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unsigned char ReadConst(unsigned char code *address)
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{
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return (*address);
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}
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*/ |