Always a zero return from Wire.endTransmission() in G2553

Wire.endTransmission() always returns a zero even when I2C scanner looking for addresses. Fixed by adding a Wire.write(1) before the command. Grant.

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// I2C scanner for M430G2553
// Added  Wire.write(1);  for sketch to work.
// Grant Forest May 2014
#include "Wire.h"
uint8_t error, address;
void setup () {
    Serial.begin(9600);
    Serial.println("G'Day MyI2C_ScannerV1");
    Wire.begin();
}
void loop () {
  Serial.print(" Scanning...");
  for(address = 1; address < 127; address++ )
  {
    Wire.beginTransmission(address);
    Wire.write(1);  ///////////////////////////////////// sketch works ok when this line added
    error = Wire.endTransmission();
    if (error==0) {
      Serial.print("Found Address 0x");
      if (address<15) Serial.print('0');
      Serial.print(address,HEX);
      Serial.print(", ");
      }
  }   

  Serial.println();  

   delay(2000);
}

energia / Energia

Always a zero return from Wire.endTransmission() in G2553 #387