Hello. I have the following basic stamp code:

Code:
' {$STAMP BS2}
' {$PBASIC 2.5}

MXCS PIN 0
MXSO PIN 1
MXSCLK PIN 2
degCouple VAR Word
degCinternal VAR Word
TCtemp1 VAR Word
TCtemp0 VAR Word
faults VAR Nib


SCVfault VAR faults.BIT2
SCGfault VAR faults.BIT1
OCfault VAR faults.BIT0

DO
  LOW MXCS 'chip select low
    SHIFTIN MXSO, MXSCLK, MSBPRE, [TCtemp1\16,TCtemp0\16] 'shift in the data
  HIGH MXCS 'chip select high
  degCouple = TCtemp1 >> 2 + (-TCtemp1.BIT15 << 14)   ' the last term extends the sign bit
  degCinternal = TCtemp0 >> 4 + (-TCtemp0.BIT15 << 12)
  faults = TCtemp0.NIB0
  degCouple = (TCtemp1 >> 2) / 4
  DEBUG SDEC degCouple, TAB, SDEC degCinternal, TAB, BIN3 faults
  PAUSE 1000
  DEBUG CLS

LOOP
Since it is not fully compatible, I've modified faults VAR Nib to faults VAR Byte, and also, instead of "DEBUG", I'm using LCDOUT.

Still does not works, returns 0 instead of temperature. When same hardware connected to BS2, the code works properly. Pinout seems to be correct. What else can be reason?