Amiga Format 44/af044.adf/Serious_Stuff/Controller.AMOS/Controller.amosSourceCode

AMOS Source Code | 1993-01-21 | 6KB | 174 lines

'14/12/92
'                          POWER SUPPLY CONTROLLER SOFTWARE
'                                BY Stuart Tavener
'
'                                  Calibration (On/Off)
'                                  Manual Output
'                                  Automatic Output
'
'
'Procedure to output value to chip selected by pin 10
'
'clear all select lines for clean start(this could be done at the start of
'                                       THE MAIN PROGRAM)
'Bclr 0,P            - Changes 1 bit of DATA 'P' which is the parallel port
'                      I/O register to 0 and Parallel Port pin 10 to 0 volts
'Bclr 1,P            - Clear the other two as well (Pin 11)
'Bclr 2,P            - (Pin 12)
'
'Poke (PRA),P        - Actually sends the changed value of 'P' to the Port
'                      register, only now will it take effect.
'
'Set the chip select line
'Bset 0,P            - Set only first Bit high, which will set pin 10 on
'                      the parallel port to 5 Volts after 'P' is 'Poked'
'
'Then output value to the parallel port register
'Poke (PRB),136      - Poke ANY value (0 to 255) to the Parallel Port Register
'
'Then activate the Select line to let correct DAC recive the value on the port
'Poke (PRA),P        - Pokes previously changed value P which set the
'                    - Pin 10 at 5 Volts for the DAC to become active.
'
'Then Clear the Select line so that the DAC is not selected...
'Bclr 0,P
'Poke (PRA),P
'
'Then the Parallel port data can be changed and the next DAC or next set
'of data be sent out as from the beginning
'This can be simplified of course to fit on one line as in the program
'below.
' The only RULE to be followed is that the chip select line should NOT
' be set high BEFORE the data is output, otherwise the data recived
' by the DAC will change and old voltages will appear first before
' the new data is sent out.
'
'
   Screen Open 1,640,256,8,Hires
   Curs Off
                              Rem Setup Port Addresses
   PRB=$BFE101
   DDRB=$BFE301
   PRA=$BFD000
   DDRA=$BFD200
                              Rem Set Port Directions
   Poke(DDRB),%11111111
   Poke(DDRA),%111
                              Rem Let Parallel Port Data be global
   P=Peek(PRA)
MENU:
'
                              Rem Clear Data on Port
   Bclr 0,P : Poke(PRB),0 : Poke(PRA),P
'
                              Rem Setup Menu Screen
   Cls
   Locate 0,5
   Print "                     Computer Controlled Power Supply"
   Print "                           By Stuart Tavener"
   Print ""
   Print "                        Using PSU Output board"
   Print "                      With Select line on Pin 10"
   Print ""
   Print "                          1 - Calibration"
   Print "                          2 - Output Value"
   Print "                          3 - Ramp"
   Print ""
   Print "                          4 - Quit Program"
   Print ""
   Print "                          Enter Choice - "
'
   Do
      A$=Inkey$
      If A$="1" Then Goto CALIBRATION
      If A$="2" Then Goto OUTPUT
      If A$="3" Then Goto RAMP
      If A$="4" Then End
   Loop
'
 CALIBRATION:
'
   Cls
   Locate 0,5
   Print "                             CALIBRATION SETUP"
   Print ""
   Print ""
   Print "               Press LEFT Mouse Button To set Output at FULL"
   Print "               and then alter the Maximum Output Voltage"
   Print "               by turning the 100K Preset"
   Print ""
   Print "               Press RIGHT Mouse Button to set Output at ZERO"
   Print ""
   Print "                Hit 'Q' to Quit and return to the Main Menu"
'
   Do
'
                                    Rem Return to Menu if Q is pressed
      QUIT$=Inkey$ : If QUIT$="q" Then Goto MENU
'
      Locate 20,20
      If Mouse Key=1 Then Bset 0,P : Poke(PRB),255 : Poke(PRA),P : Print "FULL"
      If Mouse Key=2 Then Bclr 0,P : Poke(PRB),0 : Poke(PRA),P : Print "ZERO"
   Loop
'
'
 OUTPUT:
   Cls
   Locate 0,5
   Print "                       Manual Output Control"
   Print ""
   Print "             Please Type in a number between 0 and 255"
   Print "          this will output a ratio of your Input Voltage"
   Print "          i.e if using 12v Power Supply, Smallest Step"
   Print "                of 1 will be 12v/255 steps = 0.05v"
   Print "                  50 will be     0.05 * 50 = 2.5v"
   Print ""
   Print "           Type '999' to Quit and return to the Main Menu"
'
   Do
      Locate 39,15 : Print "           "
      Locate 0,15
      Input "                  Please Input Value = ";VOLTAGE
      If VOLTAGE=999 Then Goto MENU
      If VOLTAGE<0 Then VOLTAGE=0
      If VOLTAGE>255 Then VOLTAGE=255
      Bset 0,P : Poke(PRB),VOLTAGE : Poke(PRA),P
      Locate 39,20 : Print "    "
      Locate 0,20
      Print "                 Output Value now at = ";VOLTAGE
   Loop
'
'
 RAMP:
   Bset 0,P : Poke(PRA),P
   Cls
   Locate 0,5
   Print "                       Automatic Output Control"
   Print ""
   Print "         The computer is Constantly increasing the output"
   Print "         voltage in single steps up to the user definable"
   Print "         value (max is 255), "
   Print "        use the '+' Key on the KEYPAD to Increase this Value"
   Print "        use the '-' Key on the KEYPAD to Decrease this Value"
   Print ""
   Print "                Hit 'Q' to Quit and return to the Main Menu"
'
   Do
'
      QUIT$=Inkey$ : If QUIT$="q" Then Goto MENU
      Locate 39,15 : Print "         "
      Locate 0,15
      Print "                 The current Value = ";HIGHEST
'
      Locate 0,20
      Print "                The current Output = ";OUT
'
      CHANGE$=Inkey$
      If CHANGE$="+" Then Inc HIGHEST
      If CHANGE$="-" Then Dec HIGHEST
      If HIGHEST<0 Then HIGHEST=0
      If VOLTAGE>255 Then HIGHEST=255
      Inc OUT
      If OUT=>HIGHEST Then OUT=0 : Locate 39,20 : Print "   "
      Poke(PRB),OUT
   Loop