-- BSP.SIO -- Serial Input Output (Low level and polling driven)
-- Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
-- Written by Stephane Carrez (firstname.lastname@example.org)
-- This file is free software; you can redistribute it and/or modify it
-- under the terms of the GNU General Public License as published by the
-- Free Software Foundation; either version 2, or (at your option) any
-- later version.
-- In addition to the permissions in the GNU General Public License, the
-- Free Software Foundation gives you unlimited permission to link the
-- compiled version of this file with other programs, and to distribute
-- those programs without any restriction coming from the use of this
-- file. (The General Public License restrictions do apply in other
-- respects; for example, they cover modification of the file, and
-- distribution when not linked into another program.)
-- This file is distributed in the hope that it will be useful, but
-- WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-- General Public License for more details.
-- You should have received a copy of the GNU General Public License
-- along with this program; see the file COPYING. If not, write to
-- the Free Software Foundation, 59 Temple Place - Suite 330,
-- Boston, MA 02111-1307, USA.
package BSP.SIO is
-- Initializes the SCI.
-- This procedure configures the SCI to send at \c M6811_DEF_BAUD baud
-- rate. It must be called before any other serial operation unless
-- the program is started from another one (such as a monitor or
-- in bootstrap mode).
pragma Inline_Always (Initialize);
function Receive_Pending return Boolean;
-- Return true if there is a character to read from the SCI.
pragma Inline_Always (Receive_Pending);
-- Flush the SCI send queue.
-- This procedure waits for the transmission of the current character.
-- While waiting, the COP is reset.
procedure Send (C : in Character);
-- Send the character on the serial line.
-- Before sending, it calls \c Flush to make sure the
-- transmitter is ready. Once the function returns, the
-- character is in the SCI queue and it may not be sent completely
-- over the serial line.
procedure Send (S : in String);
-- Send the string on the serial line.
function Receive return Character;
-- Wait and return the character received on the SCI.
You may also see the corresponding body.
You may also see the list of program units.
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