' **********************************************************************
' ** Program: S1DEB4 -  Version : 1.1   -   1    March    1999        **
' ** Compilator : BASCOM LT, (IDE V.1.20, LIB V.1.27)                 **
' ** Card : GPC(r) F2                                                 **
' ** Firm:    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                      **
' ** sales@grifo.it          tech@grifo.it          grifo@grifo.it    **
' **                                                                  **
' ** Developed by:  Enea Tassinari                                    **
' **********************************************************************
'
' This program allows to display on the A port the dip switch status if 
' any.
' In order to make an easier visualization of the status lines, it is 
' necessary to get a 20 pins flat cable for connecting GPC(r)F2 CN2 
' connector to TIO 16 CN1 connector, or DEB 01 CN15 connector.
'
'***********************************************************************
'
'*********************** Compiler directive ****************************
'
$romstart = &H8050                      ' address start of the code machine 
$ramstart = &HD000                      ' address start of the data area
$ramsize = &H2800                       ' put to 10K the data area
$crystal = 11059200                     ' clock frequency of the microcontroller
$baud = 9600                            ' RS-232 comunication speed
$large                                  ' address to 16 bit
'
'****************** Constant declaration *******************************
'
Dim Cnt As Const &HFA03                 ' register of command end control of the 82c55
Dim Pda As Const &HFA00                 ' data register of A port
Dim Pdb As Const &HFA01                 ' data register of B port
'
'****************** variables declaration  ****************************
'
Dim Portb As Byte                       ' variable for the read of the B port
'
'************************* Program main ********************************
'
Main:
Waitms 1                                ' delay for the signals arrangement
Out Cnt , 139                           ' program 0 mode, A port=output and B port=input
Out Pda , 255                           ' led of in the start time
Print
Print "     VISUALIZATION OF THE B PORT STATUS IN PROGRESS "
Print "                Reset the card for exit"
Print
Print "                 Status of the B port : "
Do
   Waitms 50
      Portb = Inp(pdb)                  ' read the B port status 
      Out Pda , Portb                   ' write on A port, the B port status
      Portb = Not Portb                 ' make a not
      Print "                           " ; Portb ; "        ";
   Print Chr(13);
Loop
End
'
'************************ End main program *****************************
'