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/*------------------------------------------------------------------------------
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-- This file is a part of the libuc, microcontroler library
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-- Copyright (C) 2011, Alexis Jeandet
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--
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-- This program is free software; you can redistribute it and/or modify
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-- it under the terms of the GNU General Public License as published by
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-- the Free Software Foundation; either version 3 of the License, or
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-- (at your option) any later version.
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--
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-- This program is distributed in the hope that it will be useful,
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of
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-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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-- GNU General Public License for more details.
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--
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-- You should have received a copy of the GNU General Public License
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-- along with this program; if not, write to the Free Software
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-- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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-------------------------------------------------------------------------------
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-- Author : Alexis Jeandet
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-- Mail : alexis.jeandet@gmail.com
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-------------------------------------------------------------------------------*/
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#include "24LC0X.h"
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#include "iic.h"
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#include "core.h"
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/*
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struct 24LC0X_str
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{
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i2cDev iicdev;
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unsigned char devAddress;
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unsigned char size;
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};
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*/
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void eeprom24lc0xopen(eeprom24lc0xDev* dev,i2cDev iicdev,unsigned char A0_A1_A2_val,unsigned int size)
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{
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dev->iicdev = iicdev;
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dev->devAddress = 0x50 | (A0_A1_A2_val & 0x7);
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if(size == 2048) dev->size = 2;
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if(size == 1024) dev->size = 1;
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}
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void eeprom24lc0xpagewrite(eeprom24lc0xDev dev,unsigned char address,unsigned char* page)
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{
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int cmdcnt=1,datacnt=8;
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i2cwrite2(dev.iicdev,dev.devAddress,&address,&cmdcnt,page,&datacnt);
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}
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void eeprom24lc0xpageread(eeprom24lc0xDev dev,unsigned char address,unsigned char* page)
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{
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int cmdcnt=1,datacnt=8;
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i2cwrite(dev.iicdev,dev.devAddress,&address,&cmdcnt);
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i2cread(dev.iicdev,dev.devAddress,page,&datacnt);
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}
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void eeprom24lc0xbytewrite(eeprom24lc0xDev dev,unsigned char address,unsigned char data)
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{
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int cmdcnt=1,datacnt=1;
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i2cwrite2(dev.iicdev,dev.devAddress,&address,&cmdcnt,&data,&datacnt);
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}
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unsigned char eeprom24lc0xbyteread(eeprom24lc0xDev dev,unsigned char address)
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{
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int cmdcnt=1,datacnt=1;
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unsigned char data = 0;
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i2cwrite(dev.iicdev,dev.devAddress,&address,&cmdcnt);
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i2cread(dev.iicdev,dev.devAddress,&data,&datacnt);
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return data;
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}
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void eeprom24lc0xreadn(eeprom24lc0xDev dev,unsigned char address,unsigned char* data, unsigned int count)
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{
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int cmdcnt=1,datacnt=count;
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i2cwrite(dev.iicdev,dev.devAddress,&address,&cmdcnt);
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i2cread(dev.iicdev,dev.devAddress,data,&datacnt);
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}
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void eeprom24lc0xwriten(eeprom24lc0xDev dev,unsigned char address,unsigned char* data, unsigned int count)
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{
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int cmdcnt=1,datacnt=8;
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while(count >8)
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{
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cmdcnt=1;datacnt=8;
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while(i2noerr!=i2cwrite2(dev.iicdev,dev.devAddress,&address,&cmdcnt,data,&datacnt)){cmdcnt=1;datacnt=8;}
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count-=8;
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address+=8;
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data+=8;
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}
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cmdcnt=1;datacnt=count;
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while(i2noerr!=i2cwrite2(dev.iicdev,dev.devAddress,&address,&cmdcnt,data,&datacnt)){cmdcnt=1;datacnt=count;}
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}
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