artfullpac

• The simplicity of the FTP reduces the amount of AT89C51 program memory used in the. The load address field contains the address at which the data is to be. Programming and Interfacing the 8051 Microcontroller in C and Assembly Sencer Yeralan, P.E., Ph.D. Processing Unit (CPU), program and data memory.
• Hi Micheal got to my homepage at Save yourself a lot of money with free ide's,diagrams of programmer, and how to set up for programming in the ide All instructions there for you to look at Then if you also download Avr studio look inside the folders after.

• How To Load Program In At89c51

#define dummyData 0xAA

Water level controller using 8051-An Automatic Water Level Controller and Indicator Project and Circuit with Motor ON and OFF for Engineering Students.

#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

How To Load Program In At89c51

}

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);

Kamli dhoom 3 mp4 download free. 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); }