hatuan291,
What PIC are you using? The DS1820 has its limits in speed as stated in the datasheet. First try using a PAUSEUS after the conversion command.
Double check that your PIC is working with the new oscillator settings. Try a blinking LED first with the new settings.Code:OWOut DQ, 1, [$CC, $44] ' Start temperature conversion
http://datasheets.maxim-ic.com/en/ds/DS18S20.pdf
Robert
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