2 FreeRTOS V9.0.0rc1 - Copyright (C) 2016 Real Time Engineers Ltd.
\r
5 VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
\r
7 This file is part of the FreeRTOS distribution.
\r
9 FreeRTOS is free software; you can redistribute it and/or modify it under
\r
10 the terms of the GNU General Public License (version 2) as published by the
\r
11 Free Software Foundation >>>> AND MODIFIED BY <<<< the FreeRTOS exception.
\r
13 ***************************************************************************
\r
14 >>! NOTE: The modification to the GPL is included to allow you to !<<
\r
15 >>! distribute a combined work that includes FreeRTOS without being !<<
\r
16 >>! obliged to provide the source code for proprietary components !<<
\r
17 >>! outside of the FreeRTOS kernel. !<<
\r
18 ***************************************************************************
\r
20 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
\r
21 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
\r
22 FOR A PARTICULAR PURPOSE. Full license text is available on the following
\r
23 link: http://www.freertos.org/a00114.html
\r
25 ***************************************************************************
\r
27 * FreeRTOS provides completely free yet professionally developed, *
\r
28 * robust, strictly quality controlled, supported, and cross *
\r
29 * platform software that is more than just the market leader, it *
\r
30 * is the industry's de facto standard. *
\r
32 * Help yourself get started quickly while simultaneously helping *
\r
33 * to support the FreeRTOS project by purchasing a FreeRTOS *
\r
34 * tutorial book, reference manual, or both: *
\r
35 * http://www.FreeRTOS.org/Documentation *
\r
37 ***************************************************************************
\r
39 http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading
\r
40 the FAQ page "My application does not run, what could be wrong?". Have you
\r
41 defined configASSERT()?
\r
43 http://www.FreeRTOS.org/support - In return for receiving this top quality
\r
44 embedded software for free we request you assist our global community by
\r
45 participating in the support forum.
\r
47 http://www.FreeRTOS.org/training - Investing in training allows your team to
\r
48 be as productive as possible as early as possible. Now you can receive
\r
49 FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers
\r
50 Ltd, and the world's leading authority on the world's leading RTOS.
\r
52 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
\r
53 including FreeRTOS+Trace - an indispensable productivity tool, a DOS
\r
54 compatible FAT file system, and our tiny thread aware UDP/IP stack.
\r
56 http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.
\r
57 Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.
\r
59 http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High
\r
60 Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS
\r
61 licenses offer ticketed support, indemnification and commercial middleware.
\r
63 http://www.SafeRTOS.com - High Integrity Systems also provide a safety
\r
64 engineered and independently SIL3 certified version for use in safety and
\r
65 mission critical applications that require provable dependability.
\r
70 /* FreeRTOS includes. */
\r
71 #include "FreeRTOS.h"
\r
73 /* Standard demo includes. */
\r
74 #include "IntQueueTimer.h"
\r
75 #include "IntQueue.h"
\r
77 /* Microchip includes. */
\r
78 #include "MEC14xx/mec14xx_timers.h"
\r
79 #include "MEC14xx/mec14xx_jtvic.h"
\r
80 #include "MEC14xx/mec14xx.h"
\r
82 /* The frequency of the two timers is offset so the time between the timers
\r
83 expiring is not always the same. */
\r
84 #define timerINTERRUPT0_FREQUENCY ( 2000UL )
\r
85 #define timerINTERRUPT1_FREQUENCY ( 2221UL )
\r
87 /* MEC14xx JTVIC external interrupt controller is mapped to M14K closely-coupled
\r
88 peripheral space. */
\r
89 #define portMMCR_JTVIC_GIRQ23_PRIA *((volatile uint32_t *)(0xBFFFC3F0ul))
\r
91 /*-----------------------------------------------------------*/
\r
93 /* These are the C handlers called from the asm wrappers. */
\r
94 void vT0InterruptHandler( void );
\r
95 void vT1InterruptHandler( void );
\r
97 /*-----------------------------------------------------------*/
\r
99 void vInitialiseTimerForIntQueueTest( void )
\r
101 /* Timer RT is used for the tick interrupt, timer 3 is used for the high
\r
102 frequency interrupt test. This file therefore uses timers 0 and 1. */
\r
103 uint32_t ulPreload = ( unsigned short ) ( ( configPERIPHERAL_CLOCK_HZ / ( unsigned long ) timerINTERRUPT0_FREQUENCY ) );
\r
105 btmr_sleep_en( BTMR0_ID, 0 );
\r
106 btmr_init( BTMR0_ID, BTMR_COUNT_DOWN + BTMR_AUTO_RESTART + BTMR_INT_EN, 0, ulPreload, ulPreload );
\r
107 btmr_start( BTMR0_ID );
\r
109 jtvic_clr_source( MEC14xx_GIRQ23_ID, 0 );
\r
110 portMMCR_JTVIC_GIRQ23_PRIA &= ~( 0x0Ful << 0 );
\r
111 portMMCR_JTVIC_GIRQ23_PRIA |= ( ( portIPL_TO_CODE( configMAX_SYSCALL_INTERRUPT_PRIORITY ) ) << 0 );
\r
112 jtvic_en_source( MEC14xx_GIRQ23_ID, 0, pdTRUE );
\r
114 ulPreload = ( unsigned short ) ( ( configPERIPHERAL_CLOCK_HZ / ( unsigned long ) timerINTERRUPT1_FREQUENCY ) );
\r
115 btmr_sleep_en( BTMR1_ID, 0 );
\r
116 btmr_init( BTMR1_ID, BTMR_COUNT_DOWN + BTMR_AUTO_RESTART + BTMR_INT_EN, 0, ulPreload, ulPreload );
\r
117 btmr_start( BTMR1_ID );
\r
119 jtvic_clr_source( MEC14xx_GIRQ23_ID, 1 );
\r
120 portMMCR_JTVIC_GIRQ23_PRIA &= ~( 0x0Ful << 4 );
\r
121 portMMCR_JTVIC_GIRQ23_PRIA |= ( ( portIPL_TO_CODE( configMAX_SYSCALL_INTERRUPT_PRIORITY ) ) << 4 );
\r
122 jtvic_en_source( MEC14xx_GIRQ23_ID, 1, pdTRUE );
\r
124 /*-----------------------------------------------------------*/
\r
126 void vT0InterruptHandler( void )
\r
128 /* Disable all interrupts because the source bit is shared with a bit used
\r
129 by the other timer and the high frequency timer test. */
\r
130 __asm volatile( "di" );
\r
131 /* Clear the timer interrupt. */
\r
132 jtvic_clr_source( MEC14xx_GIRQ23_ID, 0 );
\r
133 __asm volatile( "ei" );
\r
135 portEND_SWITCHING_ISR( xFirstTimerHandler() );
\r
137 /*-----------------------------------------------------------*/
\r
139 void vT1InterruptHandler( void )
\r
141 /* Disable all interrupts because the source bit is shared with a bit used
\r
142 by the other timer and the high frequency timer test. */
\r
143 __asm volatile( "di" );
\r
144 /* Clear the timer interrupt. */
\r
145 jtvic_clr_source( MEC14xx_GIRQ23_ID, 1 );
\r
146 __asm volatile( "ei" );
\r
148 portEND_SWITCHING_ISR( xSecondTimerHandler() );
\r