' Name        : ADCIN1X4.pbp
' Compiler    : PICBASIC PRO Compiler 2.6
' Assembler   : PM or MPASM
' Target PIC  : PIC12F683
' Hardware    : LAB-X4 Experimenter Board
' Oscillator  : 4MHz internal
' Keywords    : ADCIN, SEROUT
' Description : PICBASIC PRO program to display result of 10-bit A/D
' conversion on LCD.
'

Include "modedefs.bas"   ' Mode definitions for Serout

' Define ADCIN parameters
Define ADC_BITS     10   ' Set number of bits in result
Define ADC_CLOCK    3    ' Set clock source (3=rc)
Define ADC_SAMPLEUS 50   ' Set sampling time in uS

LCD   Var GPIO.1     ' LCD TX pin
adval Var Word       ' Create adval to store result

   ADCON0.7 = 1      ' Right justify result
   ANSEL = %00111000 ' Set AN3 analog, rest digital
   CMCON0 = 7        ' Analog comparators off
   Pause 500         ' Wait .5 second for LCD to init

mainloop:
   ADCIN 3, adval               ' Read channel 3 to adval
   Serout LCD, T2400, [$fe, 1]  ' Clear screen
   Serout LCD, T2400, ["Value: ", #adval] ' Display the decimal value  
   Pause 100            ' Wait .1 second
   Goto mainloop                ' Do it forever

   End