{ GPIO Pin Toggle Test using libsimpleio }

{ Copyright (C)2019-2023, Philip Munts dba Munts Technologies.                }
{                                                                             }
{ Redistribution and use in source and binary forms, with or without          }
{ modification, are permitted provided that the following conditions are met: }
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{ * Redistributions of source code must retain the above copyright notice,    }
{   this list of conditions and the following disclaimer.                     }
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{ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" }
{ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE   }
{ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE  }
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{ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR         }
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{ POSSIBILITY OF SUCH DAMAGE.                                                 }

namespace test_gpio;

  procedure Main(args: array of String);

  begin
    writeLn;
    writeLn('GPIO Pin Toggle Test using libsimpleio');
    writeLn;

    // Create GPIO pin object

    var desg : IO.Objects.SimpleIO.Device.Designator;

    write('GPIO chip number?    ');
    desg.chip := Integer.Parse(readLn());

    write('GPIO channel number? ');
    desg.chan := Integer.Parse(readLn());

    var Output : IO.Interfaces.GPIO.Pin :=
      new IO.Objects.SimpleIO.GPIO.Pin(desg,
      IO.Interfaces.GPIO.Direction.Output, false);

    // Toggle the GPIO output

    loop begin
      Output.state := not Output.state;
    end;
  end;

end.