EEPROM.cpp

00001 //**********************
00002 // EEPROM.cpp for TG-LPC11U35-501
00003 // TG-LPC11U35-501 has 4K EEPROM.
00004 // 
00005 // usage:
00006 // EEPROM eeprom;
00007 // char RAM[100]
00008 // eeprom.write(0, RAM, 100);
00009 // eeprom.read(0, RAM, 100);
00010 // eeprom.put(0, 0x00);
00011 // i=eeprom.get(0);
00012 //
00013 // note:
00014 // valid EEPROM address range is between 0 to 4031
00015 // top 64 bytes are reserved
00016 //
00017 // (C)Copyright 2014 All rights reserved by Y.Onodera
00018 // http://einstlab.web.fc2.com
00019 //**********************
00020 #include "EEPROM.h"
00021 
00022 int EEPROM::write( unsigned int EEPROM_addr, char *RAM_addr, unsigned int n ) {
00023     command[0] = EEPROM_Write;
00024     command[1] = EEPROM_addr;
00025     command[2] = (unsigned int)RAM_addr;
00026     command[3] = n;
00027     command[4] = cclk_kHz;
00028  
00029     iap_entry( command, status );
00030  
00031     return ( (int)status[0] );
00032 }
00033 
00034 
00035 int EEPROM::read( unsigned int EEPROM_addr, char *RAM_addr, unsigned int n ) {
00036     command[0] = EEPROM_Read;    
00037     command[1] = EEPROM_addr;
00038     command[2] = (unsigned int)RAM_addr;
00039     command[3] = n;
00040     command[4] = cclk_kHz;
00041  
00042     iap_entry( command, status );
00043  
00044     return ( (int)status[0] );
00045 }
00046 
00047 
00048 int EEPROM::put( unsigned int EEPROM_addr, char data ) {
00049     dat[0]=data;
00050     command[0] = EEPROM_Write;
00051     command[1] = EEPROM_addr;
00052     command[2] = (unsigned int)dat;
00053     command[3] = 1;
00054     command[4] = cclk_kHz;
00055  
00056     iap_entry( command, status );
00057  
00058     return ( (int)status[0] );
00059 }
00060 
00061 
00062 char EEPROM::get( unsigned int EEPROM_addr ) {
00063     command[0] = EEPROM_Read;    
00064     command[1] = EEPROM_addr;
00065     command[2] = (unsigned int)dat;
00066     command[3] = 1;
00067     command[4] = cclk_kHz;
00068  
00069     iap_entry( command, status );
00070  
00071     return ( dat[0] );
00072 }