随笔分类 - RTOS
摘要：OS_Alloc.o OS_free OS_Alloc.o OS_malloc OS_Alloc.o OS_realloc OS_ARM720_MMU.o OS_ARM720_...
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摘要：/* ---------------------------------------------------------------------- * Copyright (C) 2011 ARM Limited. All rights reserved. * * $Date: 10....
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摘要：Detailed DescriptionGeneric CAN Driver.This module implements a generic CAN (Controller Area Network) driver allowing the exchange of information at f...
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摘要：A task may be in one of several states at any given time. When a task is created, it isplaced into the READY state.A task in the READY state is activa...
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摘要：the difference between an embOS interrupt and a zero latency interrupt is the interrupt priority level and the usage of OS_EnterInterrupt()/OS_LeaveIn...
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摘要：信号量的分类Mutual Exclusion Semaphores（互斥）：一种特殊的二进制信号量，专门针对互斥操作进行了优化。Binary Semaphores（二进制）：完成互斥、同步操作的最佳方式；速度最快，最常用。Counting Semaphores（计数）：类似于二进制信号量，可记录信号...
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摘要：#ifndef __CMSIS_OS_H__#define __CMSIS_OS_H__#include #include #include "RTOS.h"// API version (main [31:16] .sub [15:0])#define osCMSIS ...
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摘要：1 /*---------------------------------------------------------------------------- 2 * RL-ARM - RTX 3 *--------------------------------------...
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摘要：1 /*---------------------------------------------------------------------------- 2 * RL-ARM - RTX 3 *-----------------------------------------...
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摘要：12 #include 3 4 #include "bsp-fifisdr.h"5 6 #include "lpclib.h"7 #include "task-gui.h"8 9 10 #define GUI_QUEUE_LENGTH ...
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摘要：1 /*---------------------------------------------------------------------------- 2 * RL-ARM - RTX 3 *--------------------------------------...
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摘要：1 osTimerId timer; 2 3 uint32_t cnt=0; 4 void timerHandler( void * arg ) 5 { 6 cnt++; 7 osTimerStart( timer, 100 ); 8 } 9 10 osTimerDef( timer, ...
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摘要：osMutexDef( Mutex );osMutexId mutex;void Thread0( void * arg);void Thread1( void * arg);osThreadDef( Thread0, Thread0, osPriorityNormal, 512 );osThrea...
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摘要：1 #include "cmsis_os.h" 2 3 void Thread0( void * arg); 4 void Thread1( void * arg); 5 6 osThreadDef( Thread0, Thread0, osPriorityNormal, 512 ); 7 o...
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摘要：http://www.kalinskyassociates.com/Wpaper4.htmlArchitecture of Device I/O DriversMany embedded systems developers will tell you that writing a device driver consists of a lot of "bit-bashing andregister-twiddling" to convince some ornery unit of hardware to submit to the control of driver s
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摘要：mutex和semaphore有什么区别呢？mutex是用作互斥的，而semaphore是用作同步的。也就是说，mutex的初始化一定是为1，而semaphore可以是任意的数，所以如果使用mutex，那第一个进入临界区的进程一定可以执行，而其他的进程必须等待。而semaphore则不一定，如果一开...
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摘要：http://www.embedded.com/design/embedded/4231326/Taking-advantage-of-the-Cortex-M3-s-pre-emptive-context-switchesThe ARM Cortex-M3 (CM3) architecture is a 32-bit microcontroller core designed to replace many 8-bit and 16-bit devices by offering faster speeds and advanced system features.Leveraging th
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摘要：http://www.freertos.org/a00111.htmlThe RTOS kernel allocates RAM each time a task, queue, mutex, software timer or semaphore is created.The standard C library malloc() and free() functions can sometimes be used for this purpose, but...they are not always available on embedded systems,they take up va
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摘要：Task CreationxTaskCreatevTaskDeleteTask ControlvTaskDelayvTaskDelayUntiluxTaskPriorityGetvTaskPrioritySetvTaskSuspendvTaskResumexTaskResumeFromISRKernel ControltaskYIELDtaskENTER_CRITICALtaskEXIT_CRITICALtaskDISABLE_INTERRUPTStaskENABLE_INTERRUPTSvTaskStartSchedulervTaskEndSchedulervTaskSuspendAllxT
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摘要：http://www.freertos.org/a00110.htmlFreeRTOS is customised using a configuration file called FreeRTOSConfig.h. Every FreeRTOS application must have a FreeRTOSConfig.h header file in its pre-processor include path. FreeRTOSConfig.h tailors the RTOS kernel to the application being built. It is therefor
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