Patel Darshil
Published © GPL3+

Programming Atmel AT89 Series Via Arduino

This Project will show you how to Burn Hex File For Atmel Microcontroller using Arduino Uno.

BeginnerFull instructions provided1 hour13,198
Programming Atmel AT89 Series Via Arduino

Things used in this project

Hardware components

Arduino UNO & Genuino UNO
Arduino UNO & Genuino UNO
×1
LED (generic)
LED (generic)
×1

Software apps and online services

Arduino IDE
Arduino IDE
8051 SPI Programmer

Hand tools and fabrication machines

Soldering iron (generic)
Soldering iron (generic)

Story

Read more

Schematics

Interfacing LED

Connecting Atmel to Arduino UNO

Code

Untitled file

C/C++
#define dummyData 0xAA
#define RDY 75
#define NRDY 76

const int _MISO = 4;
const int _MOSI = 5;
const int _CLK = 3;
const int RST = 2;

/* Variable definition block */

byte data;
byte AL,AH; // 16-bit address
byte lockByte; // embed lock bits here
byte SigH,SigL; // Signature Bytes

void setup()
{
pinMode(_MISO, INPUT);
pinMode(_MOSI, OUTPUT);
pinMode(_CLK, OUTPUT);
pinMode(RST, OUTPUT);
Serial.begin(115200); // depends on the setting of the host PC

}



void loop()
{ 
  while (!Serial.available()); // wait for character
        if (Serial.available() > 0)
        switch (Serial.read())
        {
        case 'p': Serial.write(progEnable());
                  break; 
        case 'r': readProgmem(); 
                  Serial.write(data);
                  break;
        case 'a': while(!Serial.available());
                  AL = Serial.read();
                  break; 
        case 'A': while(!Serial.available()); 
                  AH = Serial.read();
                  break; 
        case 'd': while(!Serial.available()); 
                  data = Serial.read();
                  break; 
        case 'S': AH = 0;
                  AL = 0;
                  SigH = readSign();
                  Serial.write(SigH);
                  break; 
        case 's': AH = 2;
                  AL = 0;
                  SigL = readSign();
                  Serial.write(SigL);
                  AH = 1;
                  AL = 0;
                  SigL = readSign();
                  Serial.write(SigL);
                  break; // read SigL
        case 'o': digitalWrite(RST,1);break; 
        case 'c': digitalWrite(RST,0);break; 
        case 'e': eraseChip();
                  Serial.write(RDY);
                  break; 
        case 'j': break;
        case 'w': writeProgmem();
                  break;
        }



}


unsigned char SendSPI(unsigned char data)
{ 
  uint8_t retval = 0;
  uint8_t intData = data;
  int t;
  
    for (int ctr = 0; ctr < 7; ctr++)
      { 
         if (intData & 0x80) digitalWrite(_MOSI,1);
            else digitalWrite(_MOSI,0);

        digitalWrite(_CLK,1); 
        delayMicroseconds(1); 

        t = digitalRead(_MISO); 
        digitalWrite(_CLK,0);

        if (t) retval |= 1; else retval &= 0xFE;
            retval<<=1;
            intData<<= 1;
        delayMicroseconds(1); 
    }


  if (intData & 0x80) digitalWrite(_MOSI,1);
    else digitalWrite(_MOSI,0);
  
    digitalWrite(_CLK,1);
    delayMicroseconds(1); 

    t = digitalRead(_MISO);
    digitalWrite(_CLK,0);
    
    if (t) retval |= 1; 
    else retval &= 0xFE;

    return retval; 
}


byte progEnable()
{ 
    SendSPI(0xAC);
    SendSPI(0x53);
    SendSPI(dummyData);
    
   return SendSPI(dummyData);
}

void eraseChip()
{
     SendSPI(0xAC);
     SendSPI(0x9F);
     SendSPI(dummyData);
     SendSPI(dummyData);
     
     delay(520);
}

void readProgmem()
{

    SendSPI(0x20);
    SendSPI(AH);
    SendSPI(AL);
    data = SendSPI(dummyData);
}

void writeProgmem()
{
    SendSPI(0x40);
    SendSPI(AH);
    SendSPI(AL);
    SendSPI(data);
}

void writeLockBits()
{
    SendSPI(0xAC);
    SendSPI(lockByte);
    SendSPI(dummyData);
    SendSPI(dummyData);
}

void readLockBits()
{ 
    SendSPI(0x24);
    SendSPI(dummyData);
    SendSPI(dummyData);
    lockByte = SendSPI(dummyData);
}

byte readSign()
{
    SendSPI(0x28);
    SendSPI(AH);
    SendSPI(AL);
    return SendSPI(dummyData);
}

Credits

Patel Darshil

Patel Darshil

29 projects • 106 followers
I am an Electronics Hobbyist pursuing my BE in Electronics and communication

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