' Name : A2D10.pbp ' Compiler : PICBASIC PRO Compiler 2.6 ' Assembler : PM or MPASM ' Target PIC : 40-pin 16F, 18F types ' Hardware : Lab-X1 or Lab-X2 board ' Oscillator : 4MHz internal or external ' Keywords : LCDOUT, A/D ' Description : PICBASIC PRO program to display result of 10-bit ' A/D conversion on LCD. Connect analog input to channel-0 (RA0). ' ' Define LCD registers and bits Define LCD_DREG PORTD Define LCD_DBIT 4 Define LCD_RSREG PORTE Define LCD_RSBIT 0 Define LCD_EREG PORTE Define LCD_EBIT 1 adval Var word ' Create adval to store result TRISA = %11111111 ' Set PORTA to all input ADCON1 = %10000010 ' Set PORTA analog and RIGHT justify result ADCON0 = %11000001 ' Configure and turn on A/D Module Pause 500 ' Wait .5 second mainloop: ADCON0.2 = 1 ' Start Conversion notdone: Pause 5 If ADCON0.2 = 1 Then notdone ' Wait for low on bit-2 of ADCON0, conversion finished adval.highbyte = ADRESH ' Move HIGH byte of result to adval adval.lowbyte = ADRESL ' Move LOW byte of result to adval Lcdout $fe, 1 ' Clear screen Lcdout "Value: ", DEC adval ' Display the decimal value Pause 100 ' Wait .1 second Goto mainloop ' Do it forever End