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Recent content by chilly85

  1. C

    ADC module PIC 16F877

    Thanks Mike. Your example is very clear.
  2. C

    ADC module PIC 16F877

    Hi all, Could you explain why we need the step "Wait for A/D conversion to complete" in ADC module? I've read data sheet and some tutorial but I'm still confused about this step. Thanks for reading this.
  3. C

    Display analog output proplem

    The parallel I'm using is bi-directional one. So I can use D0-D7 as input or output
  4. C

    Display analog output proplem

    Thanks for your suggestion. I would like to thank for your PIC tutorial online too. I have learn a lot from that.
  5. C

    Display analog output proplem

    I'm not sure what I'm doing is correct or not. Each I/O pin of parallel port I connect to outside circuit by a wire. So I can use each pin separately (from D0 to D7) By the way, I will read more about parallel port configuration. Thanks Eric
  6. C

    Display analog output proplem

    Hi Nigel Goodwin, I have a serial port. But could you tell me which program should I use in computer for reading this analog signal? Can I use Labview?
  7. C

    Display analog output proplem

    Hi Mike, Did you mean that I have to use 3 bits like: 1 bit for Enable, 1 bit for Clock, 1 bit for Data? Could you explain more detail?
  8. C

    Display analog output proplem

    In the parallel port I have 8 pin for input and output.But I used 5 pins for output already. So I have 3 pins left for input
  9. C

    Display analog output proplem

    Hi Eric, I would like to send the output from PIC to computer by parallel port But in parallel port I have only 3 bit (3 pin ) to read this data. That's why I have to change from 8bit to 3 bit
  10. C

    Display analog output proplem

    Hi all, I'm working with ADC in PIC16F877. The output is written on PortC in 8 bit.Could I display this output in 3 bit? For example PortC = 11111111 -> PortE = 111 PortC = 01111011 -> PortE = 011 PortC = 00010001 -> PortE = 010 Could I do something like this? (I checked but not worked) movlw...
  11. C

    PIC 16F877 read 2 analog signal

    Hi Mike, I've tried my program with your fixing code. It's worked. From this I got more understanding about assembly language Thanks for your support
  12. C

    PIC 16F877 read 2 analog signal

    Could anyone help me to find out what wrong with my code My program will check value from portB If portB =11000 PIC will read analog input from RA0 then send digital value to PORTC If PortB not equal 11000 PIC will read analog input from RA1 then send digital value to PORTC Here is my source...
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