demos_source/code_TestMinimal.c

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00001 /*
00002  * Femto OS v 0.91 - Copyright (C) 2008-2009 Ruud Vlaming
00003  *
00004  * This file is part of the Femto OS distribution.
00005  *
00006  * This program is free software: you can redistribute it and/or modify
00007  * it under the terms of the GNU General Public License as published by
00008  * the Free Software Foundation, version 3 of the License.
00009  *
00010  * This program is distributed in the hope that it will be useful,
00011  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00013  * GNU General Public License for more details.
00014  *
00015  * You should have received a copy of the GNU General Public License
00016  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
00017  *
00018  * Please note that, due to the GPLv3 license, for application of this
00019  * work and/or combined work in embedded systems special obligations apply.
00020  * If these are not to you liking, please know the Femto OS is dual
00021  * licensed. A commercial license and support are available.
00022  * See http://www.femtoos.org/ for details.
00023  */
00024 
00025 
00037 /* This this the only include needed in your code .*/
00038 #include "femtoos_code.h"
00039 
00040 /* use one (volatile!) byte to communicate from one task
00041  * to the other. Exercise: what happens when the keyword
00042  * volatile is left out?*/
00043 volatile Tuint08 state;
00044 
00045 /* Infinite task displaying the state */
00046 void appLoop_LEDtask(void)
00047 { devLedDRR = 0xFF;
00048   while (true)
00049   { devLedPORT = state; } }
00050 
00051 /* Infinite task reading the state */
00052 void appLoop_SWITCHtask(void)
00053 { /* This register is already zero per default, so we can save two bytes: devSwitchDRR = 0x00; */
00054   while (true)
00055   { state = devSwitchPIN;  } }
00056 
00057 

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