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• This comparison shows the changes necessary to convert path

  → /branches/V0.82b-Arthur-P/HMC58X3/examples/HMC58X3_registers_scan/HMC58X3_registers_scan.pde @ 1992

  → /branches/V0.82b-Arthur-P/HMC58X3/examples/HMC58X3_registers_scan/HMC58X3_registers_scan.pde @ 1993

  ↔ Reverse comparison

• Compare Path:	Rev

  With Path:	Rev

Ignore whitespace Rev 1992 → Rev 1993

/branches/V0.82b-Arthur-P/HMC58X3/examples/HMC58X3_registers_scan/HMC58X3_registers_scan.pde
0,0 → 1,80
/*HMC5883LRegisterScanner.pde
**A sketch that attempts to read every register from a slave device
**Written by Wayne Truchsess http://dsscircuits.com
*/
#include "Wire.h"
#define I2C 0x1E
byte x;
void setup() {
Wire.begin();
Serial.begin(9600);
delay(1000);
Wire.beginTransmission(I2C); // start transmission to device
Wire.send(0); // send register address
Wire.send(0x70); // send value to write
Wire.endTransmission(); // end transmission
delay(10);
Wire.beginTransmission(I2C); // start transmission to device
Wire.send(1); // send register address
Wire.send(B11000000); // send value to write
Wire.endTransmission(); // end transmission
delay(10);
Wire.beginTransmission(I2C); // start transmission to device
Wire.send(2); // send register address
Wire.send(0x00); // send value to write
Wire.endTransmission(); // end transmission
delay(100);
baselineRegisters();
}
void loop() {
int x,y,z;
Wire.beginTransmission(I2C);
Wire.send(3); // will start from DATA X MSB and fetch all the others
Wire.endTransmission();
Wire.beginTransmission(I2C);
Wire.requestFrom(I2C, 6);
if(6 == Wire.available()) {
// read out the 3 values, 2 bytes each.
x = (Wire.receive() << 8) + Wire.receive();
y = (Wire.receive() << 8) + Wire.receive();
z = (Wire.receive() << 8) + Wire.receive();
// the HMC5843 will automatically wrap around on the next request
}
Wire.endTransmission();
Serial.print(x);
Serial.print(" ");
Serial.print(y);
Serial.print(" ");
Serial.println(z);
delay(100);
return;
}
void baselineRegisters() {
for(int l = 0x00; l < 0x12; l++){
Wire.beginTransmission(I2C);
Wire.send(l);
Wire.endTransmission();
//delay(100);
Wire.beginTransmission(I2C);
Wire.requestFrom(I2C,1);
x = Wire.receive();
Serial.print("Register Address ");
Serial.print(l,DEC);
Serial.print(" = ");
Serial.print(x,BIN);
Serial.print(" = ");
Serial.print(x,DEC);
Serial.println(" ");
Wire.endTransmission();
}
}