' **********************************************************************
' ** Program: gmbade.BAS    -    Version : 1.1   -   15 June 2005     **
' ** Compiler : Bascom AVR IDE - LIB 1.11.7.4                         **
' ** Board : GMB HR168 and GMM AM32                                   **
' ** Society: grifo(r) ITALIAN TECHNOLOGY                             **
' ** Via Dell' Artigiano 8/6          40016 San Giorgio di Piano (BO) **
' ** Tel.+39 051 892 052     Fax +39 051 893 661                      **
' ** http://www.grifo.com    http://www.grifo.it                      **
' ** Written by:  Graziano Gaiba                                      **
' **********************************************************************
'
' 15.06.05 - Rel 1.1 By Graziano Gaiba
' This demo shows continuously on the console the combination read from
' analog input on pin 8 of CN7 on GMB HR 168, corresponding to ADC7 of micro.
' External Vref generated by GMB HR 168 is used.

'
'   Compiled file is smaller than 2048 bytes, so it can becompliled with free
'   demo of BASCOM AVR.
'
'
' !!!!!!!!!!!!!!!!!!!!!!!!!!! IMPORTANT !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
' In menu Options | Compiler | Chip, set:
'
' Chip:       M32
' HW Stack:   at least 64
' Soft Stack: at least 32
' Framesize:  at least 64
'
'
$regfile = "m32def.dat"
$crystal = 7372800
$baud = 19200
'
' ********************* Constans declarations *************************
'
Const Cret = 13                                             ' Codice di ritorno di carrello
Const Nl = 10                                               ' Codice nuova linea
Const Clrscr = 12                                           ' codice di clear screen
Const Bell = 7                                              ' codice di Bell
'
' ********************* Variables declarations ************************
'
Dim I As Byte , Conv_h As Byte , Conv_l As Byte
Dim A As Eram Byte At 1023

'
'*********** Configuration of internal devices and interrupt ************
'
' Configured AD converter for single conversion, use internal Vref and
' automatic prescaler.
'
Config Adc = Single , Prescaler = Auto , Reference = Internal
'
'
'****************** Procedures declartion **********************
'
Declare Sub Init()                                          ' Initializtion
Declare Sub Check_ready()
'
'*************************** Main program ******************************
'
Main:
Call Init()                                                 ' Initialize module


  Print Chr(clrscr);                                        ' Clears the screen
  Print "Demo 1.1 for GMM AM32 + GMB HR168"
  Print
  Call Check_ready()
  Do
      Print "A/D converter demo"
      Print
      Print "Analog signal present on pin 8 of CN7 is converted."
      Print "Connecting J11 in 1-2 the signal can range from 0 to 2.5 V,"
      Print "connecting J11 in 2-3 the signal can range from 0 to 10 V."
      Print "External 2.5 V reference voltage generated by GMB HR168 is used."
      Print "POLLING"
      Print
      Print "CH07"
      Start Adc                                             ' Enables A/D Converter
      Do
         Admux = 7                                          ' Selects channel ADC7
                                                            ' and external Vref
         Adcsr.adsc = 1                                     ' Begin conversion
         Do
         Loop Until Adcsr.adif = 1                          ' Waits for conversion end
         Adcsr.adif = 1                                     ' Resets end-of-conversion flag
         Conv_l = Adcl                                      ' Always read least significant byte
         Conv_h = Adch
         Print Hex(conv_h) ; Hex(conv_l) ;                  ' Prints conversion
         Print Chr(cret);                                   ' Carriage return
         Waitms 100                                         ' Delay for transmission
         I = Inkey()
      Loop Until I <> 0
      Stop Adc
   Loop
End
'
' *************************** Program end ******************************
'
'
' **************************** Procedures ******************************
'
' Initialize demo
Sub Init()
   ' No initialization
End Sub
'
'
' Check for hardware ready
'
Sub Check_ready()
Test:
   If A = &H55 Then
      Goto L2
   Else
      Goto Test
   End If
L2:
End Sub