Memrogram Seri Atmel AT89 Melalui Arduino

Kode

• File tanpa judul

File tanpa judulC/C++

#define dummyData 0xAA#define RDY 75#define NRDY 76const int _MISO =4;const int _MOSI =5;const int _CLK =3;const int RST =2;/* Variable definition block */byte data;byte AL ,AH; // byte alamat 16-bit lockByte; // sematkan bit kunci dengan ini SigH,SigL; // Signature Bytesvoid setup(){pinMode(_MISO, INPUT);pinMode(_MOSI, OUTPUT);pinMode(_CLK, OUTPUT);pinMode(RST, OUTPUT);Serial.begin(115200); // tergantung pada pengaturan PC host}void loop(){ while (!Serial.available()); // tunggu karakter if (Serial.available()> 0) switch (Serial.read()) { case 'p':Serial.write(progEnable()); merusak; case 'r':readProgmem(); Serial.tulis(data); merusak; case 'a':while(!Serial.available()); AL =Serial.read(); merusak; case 'A':while(!Serial.available()); AH =Serial.read(); merusak; case 'd':while(!Serial.available()); data =Serial.read(); merusak; kasus 'S':AH =0; AL =0; SigH =readSign(); Serial.write(SigH); merusak; kasus 's':AH =2; AL =0; SigL =readSign(); Serial.write(SigL); AH =1; AL =0; SigL =readSign(); Serial.write(SigL); merusak; // baca kasus SigL 'o':digitalWrite(RST,1);break; huruf 'c':digitalWrite(RST,0);break; kasus 'e':eraseChip(); Serial.write(RDY); merusak; kasus 'j':istirahat; kasus 'w':writeProgmem(); merusak; }}unsigned char SendSPI(data char unsigned){ 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 =digitalBaca(_MISO); digitalWrite(_CLK,0); jika (t) retval |=1; lain retval &=0xFE; retval<<=1; intData<<=1; delayMicroseconds(1); } if (intData &0x80) digitalWrite(_MOSI,1); else digitalWrite(_MOSI,0); digitalWrite(_CLK,1); delayMicroseconds(1); t =digitalBaca(_MISO); digitalWrite(_CLK,0); jika (t) retval |=1; lain retval &=0xFE; pengembalian kembali; }byte progEnable(){ SendSPI(0xAC); KirimSPI (0x53); KirimSPI(data dummy); return SendSPI(dummyData);}void eraseChip(){ SendSPI(0xAC); KirimSPI (0x9F); KirimSPI(data dummy); KirimSPI(data dummy); delay(520);}void readProgmem(){ SendSPI(0x20); Kirim SPI(AH); Kirim SPI(AL); data =SendSPI(dummyData);}void writeProgmem(){ SendSPI(0x40); Kirim SPI(AH); Kirim SPI(AL); SendSPI(data);}kosongkan writeLockBits(){ SendSPI(0xAC); KirimSPI(lockByte); KirimSPI(data dummy); SendSPI(dummyData);}batalkan readLockBits(){ SendSPI(0x24); KirimSPI(data dummy); KirimSPI(data dummy); lockByte =SendSPI(dummyData);}byte readSign(){ SendSPI(0x28); Kirim SPI(AH); Kirim SPI(AL); return SendSPI(dummyData);}

Skema