Hey guys, i wrote a code for the I2C read for my pic32. Basically the pic32 reads from a control chip DS2482-800. which that chip reads from an ID chip DS2401. If you can check my code and tell me if it looks write. its still giving me problems.
Thank you
Rich (BB code):
unsigned char I2C_Read_Register(void)
{
int result;
unsigned char data;
// 1-Wire Read Bytes (Case C)
// S AD,0 [A] 1WRB [A] Sr AD,1 [A] [Status] A [Status] A\
// \--------/
// Repeat until 1WB bit has changed to 0
// Sr AD,0 [A] SRP [A] E1 [A] Sr AD,1 [A] DD A\ P
//
// [] indicates from slave
// DD data read
I2CStart(I2C1);
I2CSetSlaveAddress(I2C1, 0x30, 0, 0);
if(I2CByteWasAcknowledged(I2C1)){
result = I2CSendByte(I2C1,0x96);
}
if(result == 0){
I2CRepeatStart(I2C1);
}
I2CSetSlaveAddress(I2C1, 0x31, 0, 0);
if(I2CByteWasAcknowledged(I2C1)){
if (I2CReceivedDataIsAvailable(I2C1)) {
I2CAcknowledgeByte(I2C1, TRUE);
data = I2CGetByte(I2C1);
}
}
I2CStop(I2C1);
return data;
}
