I2C数据收得不对,,大虾快来.

只看该作者 · 2008-11-18 10:42

我在发送
const BYTE SetDisrtibutorAttitudeAddr=0x12;
const char SetHDFormatAddr=0x15;

void I2Cm_SendCommand(char CommandAddr,char CommandByte)
{
   char DataBuffer[2];
   DataBuffer[0]=CommandAddr;
   DataBuffer[1]=CommandByte;
// Send the contents of the data in txBuffer
   I2CHW_bWriteBytes(SLAVER_ADDRESS, DataBuffer, 2, I2CHW_CompleteXfer);
    // Wait until the data is transferred

   while(!I2CHW_bReadI2CStatus() & I2CHW_WR_COMPLETE);

    // Clear Write Complete Status bit
   I2CHW_ClrWrStatus();
}

main函数中:
  M8C_EnableGInt;
/* Start the master */
    I2CHW_Start();
    I2CHW_EnableMstr();
I2CHW_EnableInt();

I2Cm_SendCommand(SetDisrtibutorAttitudeAddr,0xff);
I2Cm_SendCommand(SetHDSleepingAddr,0x0);

的时候,这两条不同的发送语句在slaver和示波器中收到的数据都是: c5和0B,
百思不得其解...