4 Replies Latest reply on Nov 9, 2016 10:53 PM by user_476765129

    PSOC4 IR NEC Decoding

    user_476765129

      Hello All
      Is there anyone, decoded NEC protocol of IR signal on PSOC4?
      I have preferred following website for deep study of NEC protocol,
      https://www.stwing.upenn.edu/~geykhman/seas/350/contentremote.html
      http://ustr.sancaleve.com/infrared/nec.shtml
      I have also tried to implement time period measurement,
      http://www.cypress.com/knowledge-base-article/time-period-measurement-ps...
      But unable to do so. As we need to count period of each and every rising or falling edge. There
      will be different parts as follows,
      1. 9-10 msec active high: wakeup signal
      2. 4.3 msec low: start recording data
      3. data part1: 560 usec active high: bit separator
      4. data part2: if 560 usec low: record bit as 0
                             if 1.6 msec low: record bit as 1
      5. repeat 3 & 4 till 32 bits data get recorded.
      6. error checking: first 8 bits should be compliment of second 8 bits and third 8 bits should be
      compliment of forth 8 bits.
      7. if no error found you will get your 32 bit data for particular NEC protocol based IR signal.
      Kindly update if anyone did the same before.
      Thank you in advance