+/*\r
+ FreeRTOS.org V5.0.2 - Copyright (C) 2003-2008 Richard Barry.\r
+\r
+ This file is part of the FreeRTOS.org distribution.\r
+\r
+ FreeRTOS.org is free software; you can redistribute it and/or modify\r
+ it under the terms of the GNU General Public License as published by\r
+ the Free Software Foundation; either version 2 of the License, or\r
+ (at your option) any later version.\r
+\r
+ FreeRTOS.org is distributed in the hope that it will be useful,\r
+ but WITHOUT ANY WARRANTY; without even the implied warranty of\r
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
+ GNU General Public License for more details.\r
+\r
+ You should have received a copy of the GNU General Public License\r
+ along with FreeRTOS.org; if not, write to the Free Software\r
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA\r
+\r
+ A special exception to the GPL can be applied should you wish to distribute\r
+ a combined work that includes FreeRTOS.org, without being obliged to provide\r
+ the source code for any proprietary components. See the licensing section\r
+ of http://www.FreeRTOS.org for full details of how and when the exception\r
+ can be applied.\r
+\r
+ ***************************************************************************\r
+ ***************************************************************************\r
+ * *\r
+ * SAVE TIME AND MONEY! We can port FreeRTOS.org to your own hardware, *\r
+ * and even write all or part of your application on your behalf. *\r
+ * See http://www.OpenRTOS.com for details of the services we provide to *\r
+ * expedite your project. *\r
+ * *\r
+ ***************************************************************************\r
+ ***************************************************************************\r
+\r
+ Please ensure to read the configuration and relevant port sections of the\r
+ online documentation.\r
+\r
+ http://www.FreeRTOS.org - Documentation, latest information, license and \r
+ contact details.\r
+\r
+ http://www.SafeRTOS.com - A version that is certified for use in safety \r
+ critical systems.\r
+\r
+ http://www.OpenRTOS.com - Commercial support, development, porting, \r
+ licensing and training services.\r
+*/\r
+\r
+/* Scheduler includes. */\r
+#include "FreeRTOS.h"\r
+\r
+/* Demo includes. */\r
+#include "IntQueueTimer.h"\r
+#include "IntQueue.h"\r
+\r
+/* Library includes. */\r
+#include "hw_ints.h"\r
+#include "hw_memmap.h"\r
+#include "hw_types.h"\r
+#include "interrupt.h"\r
+#include "sysctl.h"\r
+#include "lmi_timer.h"\r
+\r
+#define tmrTIMER_2_FREQUENCY ( 2000UL )\r
+#define tmrTIMER_3_FREQUENCY ( 2001UL )\r
+\r
+void vInitialiseTimerForIntQueueTest( void )\r
+{\r
+unsigned long ulFrequency;\r
+\r
+ /* Timer 2 and 3 are utilised for this test. */\r
+ SysCtlPeripheralEnable( SYSCTL_PERIPH_TIMER2 );\r
+ SysCtlPeripheralEnable( SYSCTL_PERIPH_TIMER3 );\r
+ TimerConfigure( TIMER2_BASE, TIMER_CFG_32_BIT_PER );\r
+ TimerConfigure( TIMER3_BASE, TIMER_CFG_32_BIT_PER );\r
+ \r
+ /* Set the timer interrupts to be above the kernel. The interrupts are\r
+ assigned different priorities so they nest with each other. */\r
+ IntPrioritySet( INT_TIMER2A, configMAX_SYSCALL_INTERRUPT_PRIORITY - 1 );\r
+ IntPrioritySet( INT_TIMER3A, configMAX_SYSCALL_INTERRUPT_PRIORITY );\r
+\r
+ /* Ensure interrupts do not start until the scheduler is running. */\r
+ portDISABLE_INTERRUPTS();\r
+ \r
+ /* The rate at which the timers will interrupt. */\r
+ ulFrequency = configCPU_CLOCK_HZ / tmrTIMER_2_FREQUENCY; \r
+ TimerLoadSet( TIMER2_BASE, TIMER_A, ulFrequency );\r
+ IntEnable( INT_TIMER2A );\r
+ TimerIntEnable( TIMER2_BASE, TIMER_TIMA_TIMEOUT );\r
+\r
+ /* The rate at which the timers will interrupt. */\r
+ ulFrequency = configCPU_CLOCK_HZ / tmrTIMER_3_FREQUENCY; \r
+ TimerLoadSet( TIMER3_BASE, TIMER_A, ulFrequency );\r
+ IntEnable( INT_TIMER3A );\r
+ TimerIntEnable( TIMER3_BASE, TIMER_TIMA_TIMEOUT );\r
+\r
+ /* Enable both timers. */ \r
+ TimerEnable( TIMER2_BASE, TIMER_A );\r
+ TimerEnable( TIMER3_BASE, TIMER_A );\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
+void vT2InterruptHandler( void )\r
+{\r
+ TimerIntClear( TIMER2_BASE, TIMER_TIMA_TIMEOUT ); \r
+ portEND_SWITCHING_ISR( xFirstTimerHandler() );\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
+void vT3InterruptHandler( void )\r
+{\r
+ TimerIntClear( TIMER3_BASE, TIMER_TIMA_TIMEOUT );\r
+ portEND_SWITCHING_ISR( xSecondTimerHandler() );\r
+}\r
+\r
+\r
projects / freertos / commitdiff