' Name        : ADC8X2.pbp
' Compiler    : PICBASIC PRO Compiler 2.6
' Assembler   : PM or MPASM
' Target PIC  : 28/40-pin PIC types compatible with LAB-X2 board
' Hardware    : LAB-X2 Experimenter Board
' Oscillator  : 4MHz external crystal
' Keywords    : ADCIN, SEROUT2
' Description : PICBASIC PRO program to read an analog voltage on
' RA0 and send the decimal representation of the value on the serial
' port at 2400 baud. 8-bit conversion yields 0-255 result for 0-5 volt
' input.
'

' Define LOADER_USED to allow use of the boot loader.
' This will not affect normal program operation.
Define LOADER_USED 1

' Define ADCIN parameters
Define ADC_BITS     8   ' Set number of bits in result
Define ADC_CLOCK    3   ' Set clock source (3=rc)
Define ADC_SAMPLEUS 50  ' Set sampling time in uS

adval Var Byte          ' Create adval to store result

   TRISA = %11111111    ' Set PORTA to all input
   ADCON1 = %00000010   ' Set PORTA analog

mainloop:
   ADCIN 0, adval       ' Read channel 0 to adval
   Serout2 PORTC.6, 396, ["Value: ", DEC adval, 13, 10] ' Display value
   Pause 100            ' Wait .1 second
   Goto mainloop        ' Do it forever

   End