[Mspgcc-users] reading ports

[karan]

hi,
im trying to bit-bang i2c...
here's part of my code for checking the line on the port..

BYTE is an unsigned char

void SDA_Write()
{ P2DIR |= DATABIT; }

short isSDA_Low()
{ 
  SDA_Read(); BYTE incoming;
  incoming = P2IN & DATABIT;
  if (incoming == 0x00)
    return 1;
  else
    return 0;
//return ( ((P2IN & DATABIT) == 0x00) ? 1 : 0 ); 
}

short isSCL_High()
{ 
  SCL_Read(); BYTE incoming;
  incoming = P2IN & CLKBIT;
  if (incoming == CLKBIT)
    return 1;
  else
    return 0;
//return ( ((P2IN & CLKBIT) == CLKBIT) ? 1 : 0 ); 
}

is this correct.....???
if this is not enough to figure out..
plz tell me and ill put in the entire code...

thanks,
karan
CM II
Resolution Systems Inc.