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I2C EEPROM 24LC02 EXAMPLE
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/////////////////////////////////////////////////////////////////////////
//// EX_EXTEE.C ////
//// ////
//// This program uses the 24xx or 93xx external EEPROM drivers to ////
//// read and write to an external serial EEPROM. z ////
//// ////
//// Change the #include <9356.C> to any of the other drivers to ////
//// test other parts. Note each driver defines EEPROM_ADDRESS ////
//// indicate 8 or 16 bit addresses. ////
//// ////
//// (C) Copyright 1996,1997 Custom Computer Services ////
//// ////
/////////////////////////////////////////////////////////////////////////
#include <16F84.H>
#use delay(clock=4000000)
#use rs232(baud=9600, xmit=PIN_A3, rcv=PIN_A2)
#include
#include <2402.C>
main() {
byte value,cmd;
EEPROM_ADDRESS address;
init_ext_eeprom();
do {
do {
printf("\r\nRead or Write: ");
cmd=getc();
cmd=toupper(cmd);
putc(cmd);
} while ( (cmd!='R') && (cmd!='W') );
printf("\n\rLocation: ");
#if sizeof(EEPROM_ADDRESS)==1
address = gethex();
#else
#if EEPROM_SIZE>0xfff
address = gethex();
#else
address = gethex1();
#endif
address = (address<<8)+gethex();
#endif
if(cmd=='R')
printf("\r\nValue: %X\r\n",READ_EXT_EEPROM( address ) );
if(cmd=='W') {
printf("\r\nNew value: ");
value = gethex();
printf("\n\r");
WRITE_EXT_EEPROM( address, value );
}
} while (TRUE);
}
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