PIC to PIC TX RX and PIC to PC COM RX ..a little help please


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  1. #1


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    Default a change in the code ...

    Hi again Dave

    Thanks for your help so far , I really am learning a lot :-)

    To double check that nothing on the circuit had changed I loaed the code for the serin and serout examples from earlier and all still works , which tells me the problem has something to do with the debug code.

    Reading through the help and forums and manual I noticed that DEBUGIN requires it's own set of defines .
    I'm still checking to see if the baud rate must be defines eg. debugin_baud ..which I tried anyway and the compiler didn't complain.
    So I tried it the code again with the updated degug statements but still no joy :-(

    Here's the updated receiver code:
    Receiver
    Code:
     'debugin defines
        DEFINE DEBUGIN_REG PORTC      ' Set Debugin port
        DEFINE DEBUGIN_BIT 4          ' Set Debugin pin bit
        DEFINE DEBUGIN_MODE 0         ' Set Debugin mode: 0 = true, 1 = inverted
        Define DEBUGIN_BAUD 2400      'set Debugin baud rate
        'Debugin defines end here
    'debugin commands end here
    
    'debug defines begin here - necessary for degug operation
     '   DEFINE DEBUG_MODE 0    ' Debug sending TRUE serial data
     '   DEFINE DEBUG_REG PORTC  ' Debug Port = PortC
     '   DEFINE DEBUG_BIT 4      ' Debug.bit = PortC.4
     '   DEFINE DEBUG_BAUD 2400  ' Default baud rate = 2400
        'debug defines end here
        
    'Main code begins here       
    
            Pause 2000       ' Wait for LCD to startup
            
    test:                                                         
            lcdout $fe,1 
                    lcdout "starting tx rx"
         '*******************************************           
        '*SERIN PORTC.4,T2400,[9],net 'prepare to receive the data from other PIC
        '*this lines works perfectly to send data
         '*******************************************
         '
         '****heres the same thing using debugin (RX)- check/adjust defines for settings
         DEBUGIN [WAIT("9"),DEC net]
         '****end of debug line
        lcdout "rx complete"
        pause 1000
        lcdout $fe,1 'clear lcd screen
    IF net = 3 then 
        lcdout $fe,1 
        LCDOUT "data is ",dec net 'look for the number 3 
        pause 2000
    endif  
        lcdout $fe,1
        lcdout "begin serout to hyperterminal"
        pause 1000
        LOOKUP  net,[0,"123A456B789C*0#D"],net 'use lookup table to diplay proper display in hyperterminal
    
        serout PORTC.3,T2400,["the key pressed or received value is ",net,10,13]
        lcdout $fe,1
        lcdout datatx
        pause 1000
        goto test
    end
    Kind regards

    Dennis

  2. #2
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    Default

    Try
    DEBUG "9",DEC 3
    Dave
    Always wear safety glasses while programming.

  3. #3


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    Default nope :-(

    tried it ...still no joy

  4. #4


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    Default

    Dave ...

    Do I need the defines on the receiver for debugin ???

  5. #5
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    Default

    Yes, you need DEBUGIN and DEBUG defines.

    I am giving you this stuff from memory and evidently I have forgotton something. When I get back to the shop tonight I will test it and see what I am missing.

    Maybe someone will fill in my blanks
    Dave
    Always wear safety glasses while programming.

  6. #6
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    The send code
    Code:
        DEFINE DEBUG_MODE  1    ' Debug sending INVERTED serial data
        DEFINE DEBUG_REG PORTB  ' Debug Port = PortC
        DEFINE DEBUG_BIT 3      ' Debug.bit = PortC.4
        DEFINE DEBUG_BAUD 2400  ' Default baud rate = 2400
    
    DEBUG "9",DEC 3,$d,$a
    The receive code
    Code:
        DEFINE DEBUGIN_MODE  1    ' Debug sending INVERTED serial data
        DEFINE DEBUGIN_REG PORTB  ' Debug Port = PortC
        DEFINE DEBUGIN_BIT 4      ' Debug.bit = PortC.4
        DEFINE DEBUGIN_BAUD 2400  ' Default baud rate = 2400
    
    DEBUGIN [WAIT("9"),DEC NET]
    I just ran this in real life, it works.
    Sorry for giving it wrong before.
    Dave
    Always wear safety glasses while programming.

  7. #7


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    Default pssst Dave .....

    IT WORKS !!!
    WOOOOOOHOOOOOOOOOO you ROCK ! :-)

    Thank you thank you thank you :-)

    By the way that memory of yours was pretty damn close :-)
    Seems inverted mode was needed ?

    What are the $d and $a for in the line below by the way ?

    Code:
    DEBUG "9",DEC 3,$d,$a
    And now for HSERIN and OUT

    A few questions first ..

    1. With HSERIN and OUT , is it a necessity to use the onboard TX/RX pins , in my case PORTC. and PORTC.7 ?

    2. Is it pretty much a case of replacing the debug lines with HSERIN as you said in a n earlier posting ?

    Thanks again Dave

    Dennis

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