From: elbric0 <jasmin.stlaurent@gmail.com>
Subject: How to use GNAT.Serial_Communications ?
Date: Fri, 13 Sep 2013 18:39:27 -0700 (PDT)
Date: 2013-09-13T18:39:27-07:00 [thread overview]
Message-ID: <05ecdd0e-41cf-4961-88db-22e0a8cba3f6@googlegroups.com> (raw)
Hi,
I am learning Ada and try to figure how to communicate with an electronic device on a serial port.
I think the code to print 'A' to COM1 on Windows should be about that.
----------------------------------------------------------------
with GNAT.Serial_Communications; use GNAT.Serial_Communications;
procedure Test_Serial is
Serial : Serial_Port;
C : Character;
begin
Open (Port => Serial, Name => Name (1));
C := 'A';
Character'Write (Serial, C);
Close (Serial);
end Test_Serial;
----------------------------------------------------------------
However the type of the first parameter of Character'Write is not correct. I get this error message: "expected access to Ada.Streams.Root_Stream_Type'Class".
Can someone tell me what I should put there instead of Serial?
Do you know any tutorial or code example that can help me?
next reply other threads:[~2013-09-14 1:39 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-14 1:39 elbric0 [this message]
2013-09-14 5:42 ` How to use GNAT.Serial_Communications ? Simon Wright
2013-09-14 12:10 ` jasmin.stlaurent
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