Serin serout problem


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    Quote Originally Posted by lerameur View Post
    TC=46c, Tf=114f
    getting...
    Ok, obviously the temp sensor code is working fine, and the receiver code is 'working'.

    Check your wiring again. This should be working just fine. I just built up the same thing (during the last 10 minutes), 2 PIC16F628A's, exact code, simulated the one-wire temp sensor in the transmit section with some dummy values, added a button to change the number when pressed.
    Both transmit and receive sections worked fine.
    Are both sections on the same power and ground lines?

    Use this code. Again, make the LCD work for you....

    'TRANSMIT
    INCLUDE "modedefs.bas"
    DEFINE OSC 20 'use external 20mhz crystal
    CMCON = 7 : ANSEL = 0 : ADCON1 = 7
    DEFINE LCD_DREG PORTA ' Set LCD Data port
    DEFINE LCD_DBIT 0 ' Set starting Data bit (0 or 4) if 4-bit bus
    DEFINE LCD_RSREG PORTB ' Set LCD Register Select port
    DEFINE LCD_RSBIT 1 ' Set LCD Register Select bit
    DEFINE LCD_EREG PORTB ' Set LCD Enable port
    DEFINE LCD_EBIT 0 ' Set LCD Enable bit
    DEFINE LCD_BITS 4 ' Set LCD bus size (4 or 8 bits)
    DEFINE LCD_LINES 2 ' Set number of lines on LCD
    try1 var byte : output portb.2 : input portb.3 : dq var portb.4 : temp var word : tempf var word
    pause 2500

    loop:
    try1 = try1 + 1
    lcdout $fe , $c0 , "Getting..." , DEC3 try1 , "," , DEC3 try2
    owout DQ , 1 , [ $cc ] : owout DQ , 0 , [ $44 ] : Pause 500
    owout DQ , 1 , [ $cc ] : owout DQ , 0 , [ $be ]
    owin DQ , 0 , [ temp.LOWBYTE , temp.HIGHBYTE , skip 6 ]
    tempf = temp * 9 : tempf = tempf / 5 : tempf = tempf + 32
    lcdout $fe , $c0 , "Displaying" , DEC3 try1 , "," , DEC3 try2
    lcdout $fe , $80 , "Tc=" , DEC temp , "C,Tf=" , DEC tempf , "F.."
    lcdout $fe , $c0 , "Sending..." , DEC3 try1 , "," , DEC3 try2
    serout portb.2 , n2400 , [ temp.highbyte , temp.lowbyte ]
    serout portb.2 , n2400 , [ tempf.highbyte , tempf.lowbyte ]
    lcdout $fe , $c0 , "Data Sent." , DEC3 try1 , "," , DEC3 try2
    goto loop
    End




    'RECEIVE
    INCLUDE "modedefs.bas"
    DEFINE OSC 20 'use external 20mhz crystal
    CMCON = 7 : ANSEL = 0 : ADCON1 = 7
    DEFINE LCD_DREG PORTA ' Set LCD Data port
    DEFINE LCD_DBIT 0 ' Set starting Data bit (0 or 4) if 4-bit bus
    DEFINE LCD_RSREG PORTB ' Set LCD Register Select port
    DEFINE LCD_RSBIT 1 ' Set LCD Register Select bit
    DEFINE LCD_EREG PORTB ' Set LCD Enable port
    DEFINE LCD_EBIT 0 ' Set LCD Enable bit
    DEFINE LCD_BITS 4 ' Set LCD bus size (4 or 8 bits)
    DEFINE LCD_LINES 2 ' Set number of lines on LCD

    'try1 = count of times waiting for bytes, try2 = count of bytes received
    try1 var byte : try2 var byte : temp var word : tempf var word : input portb.3 : pause 2500

    loop:
    lcdout $fe , $c0 , "Waiting..." , DEC3 try1 , "," , DEC3 try2
    try1 = try1 + 1
    serin portB.3 , n2400 , 1000 , loop , [ temp.highbyte , temp.lowbyte , tempf.highbyte , tempf.lowbyte ]
    try2 = try2 + 2
    lcdout $fe , $c0 , "Received.." , DEC3 try1 , "," , DEC3 try2
    lcdout $fe , $c0 , "Displaying" , DEC3 try1 , "," , DEC3 try2
    lcdout $fe , $80 , "Tc=" , DEC temp , "C,Tf=" , DEC tempf , ".."
    lcdout $fe , $c0 , "Displayed." , DEC3 try1 , "," , DEC3 try2
    goto loop
    End
    Last edited by skimask; - 24th December 2006 at 00:24. Reason: Added code

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