diff options
| author | Yuval Adam <yuv.adm@gmail.com> | 2014-08-08 14:42:07 +0300 |
|---|---|---|
| committer | Yuval Adam <yuv.adm@gmail.com> | 2014-08-08 14:42:07 +0300 |
| commit | a6163888f3c56123b1db313743c6147ba498732c (patch) | |
| tree | ff7d15d991d1d09ba6cbc0cec80924f57445bfdd /third_party/FreeRTOS/Demo/CORTEX_LM3Sxxxx_Rowley/IntQueueTimer.c | |
| parent | c3e4c9a25c2910d2d66d52215b3406b13d5b23d5 (diff) | |
Add third_party libs
Diffstat (limited to 'third_party/FreeRTOS/Demo/CORTEX_LM3Sxxxx_Rowley/IntQueueTimer.c')
| -rw-r--r-- | third_party/FreeRTOS/Demo/CORTEX_LM3Sxxxx_Rowley/IntQueueTimer.c | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/third_party/FreeRTOS/Demo/CORTEX_LM3Sxxxx_Rowley/IntQueueTimer.c b/third_party/FreeRTOS/Demo/CORTEX_LM3Sxxxx_Rowley/IntQueueTimer.c new file mode 100644 index 0000000..5d360cb --- /dev/null +++ b/third_party/FreeRTOS/Demo/CORTEX_LM3Sxxxx_Rowley/IntQueueTimer.c @@ -0,0 +1,133 @@ +/*
+ FreeRTOS V7.6.0 - Copyright (C) 2013 Real Time Engineers Ltd.
+ All rights reserved
+
+ VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
+
+ ***************************************************************************
+ * *
+ * FreeRTOS provides completely free yet professionally developed, *
+ * robust, strictly quality controlled, supported, and cross *
+ * platform software that has become a de facto standard. *
+ * *
+ * Help yourself get started quickly and support the FreeRTOS *
+ * project by purchasing a FreeRTOS tutorial book, reference *
+ * manual, or both from: http://www.FreeRTOS.org/Documentation *
+ * *
+ * Thank you! *
+ * *
+ ***************************************************************************
+
+ This file is part of the FreeRTOS distribution.
+
+ FreeRTOS is free software; you can redistribute it and/or modify it under
+ the terms of the GNU General Public License (version 2) as published by the
+ Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.
+
+ >>! NOTE: The modification to the GPL is included to allow you to distribute
+ >>! a combined work that includes FreeRTOS without being obliged to provide
+ >>! the source code for proprietary components outside of the FreeRTOS
+ >>! kernel.
+
+ FreeRTOS 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. Full license text is available from the following
+ link: http://www.freertos.org/a00114.html
+
+ 1 tab == 4 spaces!
+
+ ***************************************************************************
+ * *
+ * Having a problem? Start by reading the FAQ "My application does *
+ * not run, what could be wrong?" *
+ * *
+ * http://www.FreeRTOS.org/FAQHelp.html *
+ * *
+ ***************************************************************************
+
+ http://www.FreeRTOS.org - Documentation, books, training, latest versions,
+ license and Real Time Engineers Ltd. contact details.
+
+ http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
+ including FreeRTOS+Trace - an indispensable productivity tool, a DOS
+ compatible FAT file system, and our tiny thread aware UDP/IP stack.
+
+ http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
+ Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS
+ licenses offer ticketed support, indemnification and middleware.
+
+ http://www.SafeRTOS.com - High Integrity Systems also provide a safety
+ engineered and independently SIL3 certified version for use in safety and
+ mission critical applications that require provable dependability.
+
+ 1 tab == 4 spaces!
+*/
+
+/* Scheduler includes. */
+#include "FreeRTOS.h"
+
+/* Demo includes. */
+#include "IntQueueTimer.h"
+#include "IntQueue.h"
+
+/* Library includes. */
+#include "hw_ints.h"
+#include "hw_memmap.h"
+#include "hw_types.h"
+#include "interrupt.h"
+#include "sysctl.h"
+#include "lmi_timer.h"
+
+#define tmrTIMER_2_FREQUENCY ( 2000UL )
+#define tmrTIMER_3_FREQUENCY ( 2001UL )
+
+void vInitialiseTimerForIntQueueTest( void )
+{
+unsigned long ulFrequency;
+
+ /* Timer 2 and 3 are utilised for this test. */
+ SysCtlPeripheralEnable( SYSCTL_PERIPH_TIMER2 );
+ SysCtlPeripheralEnable( SYSCTL_PERIPH_TIMER3 );
+ TimerConfigure( TIMER2_BASE, TIMER_CFG_32_BIT_PER );
+ TimerConfigure( TIMER3_BASE, TIMER_CFG_32_BIT_PER );
+
+ /* Set the timer interrupts to be above the kernel. The interrupts are
+ assigned different priorities so they nest with each other. */
+ IntPrioritySet( INT_TIMER2A, configMAX_SYSCALL_INTERRUPT_PRIORITY + ( 1 << 5 ) ); /* Shift left 5 as only the top 3 bits are implemented. */
+ IntPrioritySet( INT_TIMER3A, configMAX_SYSCALL_INTERRUPT_PRIORITY );
+
+ /* Ensure interrupts do not start until the scheduler is running. */
+ portDISABLE_INTERRUPTS();
+
+ /* The rate at which the timers will interrupt. */
+ ulFrequency = configCPU_CLOCK_HZ / tmrTIMER_2_FREQUENCY;
+ TimerLoadSet( TIMER2_BASE, TIMER_A, ulFrequency );
+ IntEnable( INT_TIMER2A );
+ TimerIntEnable( TIMER2_BASE, TIMER_TIMA_TIMEOUT );
+
+ /* The rate at which the timers will interrupt. */
+ ulFrequency = configCPU_CLOCK_HZ / tmrTIMER_3_FREQUENCY;
+ TimerLoadSet( TIMER3_BASE, TIMER_A, ulFrequency );
+ IntEnable( INT_TIMER3A );
+ TimerIntEnable( TIMER3_BASE, TIMER_TIMA_TIMEOUT );
+
+ /* Enable both timers. */
+ TimerEnable( TIMER2_BASE, TIMER_A );
+ TimerEnable( TIMER3_BASE, TIMER_A );
+}
+/*-----------------------------------------------------------*/
+
+void vT2InterruptHandler( void )
+{
+ TimerIntClear( TIMER2_BASE, TIMER_TIMA_TIMEOUT );
+ portEND_SWITCHING_ISR( xFirstTimerHandler() );
+}
+/*-----------------------------------------------------------*/
+
+void vT3InterruptHandler( void )
+{
+ TimerIntClear( TIMER3_BASE, TIMER_TIMA_TIMEOUT );
+ portEND_SWITCHING_ISR( xSecondTimerHandler() );
+}
+
+
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