Hello Andre, > Hi All, > > I am having hard time to determine the length of uart RX data. Use a timer. Every time you receive a byte, clear the timer. Set a=20 timeout value and once the UART stops receiving the bytes, the timer=20 times out and you know that no more bytes are coming in. Cheers Ravi --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .