| /* | |
| FreeRTOS V8.1.2 - Copyright (C) 2014 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! | |
| */ | |
| /* Standard includes. */ | |
| #include <stdlib.h> | |
| /* Scheduler includes. */ | |
| #include "FreeRTOS.h" | |
| #include "task.h" | |
| /* Critical nesting should be initialised to a non zero value so interrupts don't | |
| accidentally get enabled before the scheduler is started. */ | |
| #define portINITIAL_CRITICAL_NESTING (( StackType_t ) 10) | |
| /* The PSW value assigned to tasks when they start to run for the first time. */ | |
| #define portPSW (( StackType_t ) 0x00000000) | |
| /* We require the address of the pxCurrentTCB variable, but don't want to know | |
| any details of its type. */ | |
| typedef void TCB_t; | |
| extern volatile TCB_t * volatile pxCurrentTCB; | |
| /* Keeps track of the nesting level of critical sections. */ | |
| volatile StackType_t usCriticalNesting = portINITIAL_CRITICAL_NESTING; | |
| /*-----------------------------------------------------------*/ | |
| /* Sets up the timer to generate the tick interrupt. */ | |
| static void prvSetupTimerInterrupt( void ); | |
| /*-----------------------------------------------------------*/ | |
| StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t pxCode, void *pvParameters ) | |
| { | |
| *pxTopOfStack = ( StackType_t ) pxCode; /* Task function start address */ | |
| pxTopOfStack--; | |
| *pxTopOfStack = ( StackType_t ) pxCode; /* Task function start address */ | |
| pxTopOfStack--; | |
| *pxTopOfStack = portPSW; /* Initial PSW value */ | |
| pxTopOfStack--; | |
| *pxTopOfStack = ( StackType_t ) 0x20202020; /* Initial Value of R20 */ | |
| pxTopOfStack--; | |
| *pxTopOfStack = ( StackType_t ) 0x21212121; /* Initial Value of R21 */ | |
| pxTopOfStack--; | |
| *pxTopOfStack = ( StackType_t ) 0x22222222; /* Initial Value of R22 */ | |
| pxTopOfStack--; | |
| *pxTopOfStack = ( StackType_t ) 0x23232323; /* Initial Value of R23 */ | |
| pxTopOfStack--; | |
| *pxTopOfStack = ( StackType_t ) 0x24242424; /* Initial Value of R24 */ | |
| pxTopOfStack--; | |
| #if (__DATA_MODEL__ == 0) || (__DATA_MODEL__ == 1) | |
| *pxTopOfStack = ( StackType_t ) 0x25252525; /* Initial Value of R25 */ | |
| pxTopOfStack--; | |
| #endif /* configDATA_MODE */ | |
| *pxTopOfStack = ( StackType_t ) 0x26262626; /* Initial Value of R26 */ | |
| pxTopOfStack--; | |
| *pxTopOfStack = ( StackType_t ) 0x27272727; /* Initial Value of R27 */ | |
| pxTopOfStack--; | |
| *pxTopOfStack = ( StackType_t ) 0x28282828; /* Initial Value of R28 */ | |
| pxTopOfStack--; | |
| *pxTopOfStack = ( StackType_t ) 0x29292929; /* Initial Value of R29 */ | |
| pxTopOfStack--; | |
| *pxTopOfStack = ( StackType_t ) 0x30303030; /* Initial Value of R30 */ | |
| pxTopOfStack--; | |
| *pxTopOfStack = ( StackType_t ) 0x19191919; /* Initial Value of R19 */ | |
| pxTopOfStack--; | |
| *pxTopOfStack = ( StackType_t ) 0x18181818; /* Initial Value of R18 */ | |
| pxTopOfStack--; | |
| *pxTopOfStack = ( StackType_t ) 0x17171717; /* Initial Value of R17 */ | |
| pxTopOfStack--; | |
| *pxTopOfStack = ( StackType_t ) 0x16161616; /* Initial Value of R16 */ | |
| pxTopOfStack--; | |
| *pxTopOfStack = ( StackType_t ) 0x15151515; /* Initial Value of R15 */ | |
| pxTopOfStack--; | |
| *pxTopOfStack = ( StackType_t ) 0x14141414; /* Initial Value of R14 */ | |
| pxTopOfStack--; | |
| *pxTopOfStack = ( StackType_t ) 0x13131313; /* Initial Value of R13 */ | |
| pxTopOfStack--; | |
| *pxTopOfStack = ( StackType_t ) 0x12121212; /* Initial Value of R12 */ | |
| pxTopOfStack--; | |
| *pxTopOfStack = ( StackType_t ) 0x11111111; /* Initial Value of R11 */ | |
| pxTopOfStack--; | |
| *pxTopOfStack = ( StackType_t ) 0x10101010; /* Initial Value of R10 */ | |
| pxTopOfStack--; | |
| *pxTopOfStack = ( StackType_t ) 0x99999999; /* Initial Value of R09 */ | |
| pxTopOfStack--; | |
| *pxTopOfStack = ( StackType_t ) 0x88888888; /* Initial Value of R08 */ | |
| pxTopOfStack--; | |
| *pxTopOfStack = ( StackType_t ) 0x77777777; /* Initial Value of R07 */ | |
| pxTopOfStack--; | |
| *pxTopOfStack = ( StackType_t ) 0x66666666; /* Initial Value of R06 */ | |
| pxTopOfStack--; | |
| *pxTopOfStack = ( StackType_t ) 0x55555555; /* Initial Value of R05 */ | |
| pxTopOfStack--; | |
| #if __DATA_MODEL__ == 0 || __DATA_MODEL__ == 1 | |
| *pxTopOfStack = ( StackType_t ) 0x44444444; /* Initial Value of R04 */ | |
| pxTopOfStack--; | |
| #endif /* configDATA_MODE */ | |
| *pxTopOfStack = ( StackType_t ) 0x22222222; /* Initial Value of R02 */ | |
| pxTopOfStack--; | |
| *pxTopOfStack = ( StackType_t ) pvParameters; /* R1 is expected to hold the function parameter*/ | |
| pxTopOfStack--; | |
| *pxTopOfStack = ( StackType_t ) portNO_CRITICAL_SECTION_NESTING; | |
| /* | |
| * Return a pointer to the top of the stack we have generated so this can | |
| * be stored in the task control block for the task. | |
| */ | |
| return pxTopOfStack; | |
| } | |
| /*-----------------------------------------------------------*/ | |
| BaseType_t xPortStartScheduler( void ) | |
| { | |
| /* Setup the hardware to generate the tick. Interrupts are disabled when | |
| this function is called. */ | |
| prvSetupTimerInterrupt(); | |
| /* Restore the context of the first task that is going to run. */ | |
| vPortStart(); | |
| /* Should not get here as the tasks are now running! */ | |
| return pdTRUE; | |
| } | |
| /*-----------------------------------------------------------*/ | |
| void vPortEndScheduler( void ) | |
| { | |
| /* It is unlikely that the V850ES/Fx3 port will get stopped. If required simply | |
| disable the tick interrupt here. */ | |
| } | |
| /*-----------------------------------------------------------*/ | |
| /* | |
| * Hardware initialisation to generate the RTOS tick. This uses | |
| */ | |
| static void prvSetupTimerInterrupt( void ) | |
| { | |
| TM0CE = 0; /* TMM0 operation disable */ | |
| TM0EQMK0 = 1; /* INTTM0EQ0 interrupt disable */ | |
| TM0EQIF0 = 0; /* clear INTTM0EQ0 interrupt flag */ | |
| #ifdef __IAR_V850ES_Fx3__ | |
| { | |
| TM0CMP0 = (((configCPU_CLOCK_HZ / configTICK_RATE_HZ) / 2)-1); /* divided by 2 because peripherals only run at CPU_CLOCK/2 */ | |
| } | |
| #else | |
| { | |
| TM0CMP0 = (configCPU_CLOCK_HZ / configTICK_RATE_HZ); | |
| } | |
| #endif | |
| TM0EQIC0 &= 0xF8; | |
| TM0CTL0 = 0x00; | |
| TM0EQIF0 = 0; /* clear INTTM0EQ0 interrupt flag */ | |
| TM0EQMK0 = 0; /* INTTM0EQ0 interrupt enable */ | |
| TM0CE = 1; /* TMM0 operation enable */ | |
| } | |
| /*-----------------------------------------------------------*/ | |