Baca dan Tulis Memori EEPROM
>Tuliskan sintaks
program berikut ini pada Arduino IDE, kemudian lakukan kompilasi dan upload
program ke mikrokontroler,
#include <EEPROM.h> boolean exitProgram = 0;
void
setup() {
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Serial.begin(9600);
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Serial.println("=========
EEPROM
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Access Via
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Serial
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==== ====");
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Serial.println("Type this command
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to execute
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EEPROM opera tion");
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Serial.println("write : For write
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data to EEPROM");
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Serial.println("read
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: For read
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data
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from
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EEPROM");
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Serial.println("clear
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: For
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clear
all
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data
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in EEPROM");
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Serial.println("exit
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: For
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exit
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from
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program");
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}
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void loop() { int command;
while(!exitProgram)
{ do {
Serial.print("Type Command >>
"); while(Serial.available()==0); command = readCommandFromSerial();
switch(command) {
case 1 :
Serial.println("Write EEPROM Selected"); writeEEPROM();
break;
case 2 :
Serial.println("Read EEPROM Selected"); readEEPROM();
break;
case 3 : Serial.println("Clear EEPROM Selected"); clearEEPROM();
Serial.println("Clear EEPROM
Finished"); break;
case 4 :
Serial.println("Exit From Program"); exitProgram = 1;
break;
default : Serial.println("Wrong Command,
Please Ty pe Again !"); break;
}
}
while(command == 0);
}
}
int readCommandFromSerial() { char stringFromSerial[10]; char data;
int command;
int countData = 0; for(int i=0;i<10;i++)
{
stringFromSerial[i]=0;
}
while(true) { if(Serial.available())
{
data = Serial.read(); Serial.write(data); if(data=='\n') {
break;
}
else { if(data!='\r') {
stringFromSerial[countData] = data; countData++;
}
}
}
}
if(strcmp(stringFromSerial,"write")==0){ command
= 1;
}
else if(strcmp(stringFromSerial,"read")==0){ command
= 2;
}
else if(strcmp(stringFromSerial,"clear")==0){ command
= 3;
}
else if(strcmp(stringFromSerial,"exit")==0){ command
= 4;
}
else{
command = 0;
return
command;
}
int readValFromSerial()
{ char stringFromSerial[10]; char data;
int val;
int countData = 0; for(int i=0;i<10;i++)
{
stringFromSerial[i]=0;
}
while(true) { if(Serial.available())
{
data = Serial.read(); Serial.write(data); if(data=='\n') {
break;
}
else { if(data!='\r') {
stringFromSerial[countData] = data; countData++;
}
}
}
}
sscanf(stringFromSerial,"%d",&val);
return val;
}
void clearEEPROM() { for(int i=0;i<512;i++)
{
EEPROM.write(i,0);
}
}
void writeEEPROM() { int address;
do {
Serial.print("Address : ");
address = readValFromSerial(); if(address>512)
{
Serial.println("Addres maximal is 512 !, Please type again !");
}
}
while(address>512); int data;
do {
Serial.print("Data : ");
data = readValFromSerial(); if(data>512) {
Serial.println("Data maximal is 512 !, Please type ag ain !");
}
}
while(data>512); EEPROM.write(address,data); Serial.println("EEPROM Write Success !");
}
void
readEEPROM()
{
int address; do
{
Serial.print("Address : ");
address = readValFromSerial(); if(address>512)
{
Serial.println("Addres maximal is 512 !, Please type again !");
}
}
while(address>512);
int data = EEPROM.read(address); Serial.print("Data
in Address "); Serial.print(address,DEC);
Serial.print(" : ");
Serial.println(data,DEC);
}
> Setelah itu upload program yang telah decompile ke mikrokontroler
> Kemudian
bukalah serial monitor pada menu tools atau dengan menekan CTRL+SHIFT+M dan atur baudrate diserial monitor pada
posisi 9600 dan ubah juga pengiriman data karakter CR + LF ,sehingga muncul
gambar seperti dibawah ini:
