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[/] [openrisc/] [trunk/] [rtos/] [ucos-ii/] [2.91/] [common/] [main.c] - Rev 776
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/* ---------------------------------------------------------------------- CHiPES Embedded RTR Systems Copyright (c) Tim Oliver 2002-2004 ---------------------------------------------------------------------- File : main.c Author(s) : Tim Oliver, timtimoliver@yahoo.co.uk Julius Baxter, julius@opencores.org ---------------------------[Description]------------------------------ Very simple MicroC/OS-II test application for the ORP Uses the UART as standard io Initialises RTOS Calls task init hook that should be provided by another file. Starts multitasking */ /* This program 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 of the License, or (at your option) any later version. This program 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; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include "includes.h" /* Prototype for function we'll call to install real tasks */ void TaskStart(void *data); extern void TaskStartCreateTasks(void); /* Hook to function provided elsewhere */ /* main() prototype */ void main (void); #define TASK_STK_SIZE 256 OS_STK TaskStartStk[TASK_STK_SIZE]; /* Main loop */ void main(void) { char c; /* OS Init function */ OSInit(); /* Clear console */ console_init(80,24); console_puts(28,7,"************************"); console_puts(28,8,"* uC/OS-II on OpenRISC *"); console_puts(28,9,"************************"); console_puts(1, 14,"OS Initialising..."); /* Init first task, which will spawn all others */ OSTaskCreate(TaskStart, (void *)0, &TaskStartStk[TASK_STK_SIZE - 1], 0); console_puts(1,12,"Press a key to start OS"); c = getc(); console_puts(1,14,"OS Starting..."); /* Init OR1K tick timer */ OSInitTick(); /* Kick off multi-tasking */ OSStart(); } /* This task is set to run from main() */ void TaskStart (void *pdata) { char c; OS_CPU_SR cpu_sr; pdata = pdata; /* Prevent compiler warning */ /* Do other user task init things here ... */ OSStatInit(); /* Initialize uC/OS-II's statistics */ TaskStartCreateTasks(); /* Create all other tasks */ for (;;) { /* Maybe do something like update a display here */ /* Check if UART has received anything, potentialy abort due to it. */ c = testc(); if (c) { if (c=='q') { /* Clear up console */ console_finish(); /* Disable interrupts */ OS_ENTER_CRITICAL() /* Exit if simulator, reboot if board */ asm("l.ori r3, r0, 0; \ l.nop 0x1; \ l.movhi r3, 0xf000; \ l.ori r3,r3,0x100; \ l.jr r3; \ l.nop 0x1"); } } OSCtxSwCtr = 0; /* Clear context switch counter */ OSTimeDly(OS_TICKS_PER_SEC); /* Wait one second */ } }
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