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硬件平台:stm32f103
软件环境:MDK5
移植ucosii花了我很多时间,首先看了正点哥的视频,看不太懂。接下来又看野火哥,野火哥用了一堆从
自己例程中复制过来的代码,看的有点蒙。接下来我就去看了cortex-m3中文权威指南,大概了解了m3的
通用寄存器、特殊寄存器、中断原理、滴答定时器的内容(cosii的函数都是基于这部分内容编写的,比如
临界区的概念建议要了解下),然后我就开始看cosii系统要编写的几个函数,最后还是回到原子哥的视频
着手移植。
为保证移植后编译错误只与ucosii有关,一定要保证移植前的程序无误。
以上用的例程来自原子哥的库函数版本跑马灯实验
1.在目录中创建文件夹UCOSII、UCOSII/CORE、UCOSII/PORT、UCOSII/CONFIG。
CORE用来存UCOSII源码
PORT存接口文件,移植于不同芯片,裁剪ucosii系统需要进行修改
CONFIG存配置文件
官方链接:(stm32fi03)
https://www.micrium.com/download/micrium_stm32f103-sk_ucos-ii/
下载得到文件目录如下
主要用到software\ucosII中的文件
\Ports\arm-cortex-m3\Generic\IAR
复制的我的工程目录UCOSII/PORT
\Source下文件复制到UCOSII/CORE
添加文件与添加头文件路径最终结果:
1.修改includes.h,这是ucos源码中通用的头文件,由于我复制的是其他工程项目的头文件,有些文件我并没有,所以改为以下代码:
>#ifndef __INCLUDES_H__ #define __INCLUDES_H__ //以上防重定义 //ucosii所用到的头文件 #include <stdio.h> #include <string.h> #include <ctype.h> #include <stdlib.h> #include <stdarg.h> #include "usart.h" #include "ucos_ii.h" #include "os_cpu.h" #include "os_cfg.h" #include <stm32f10x.h> #include "sys.h" //main例程要用的头文件 #include "delay.h" #include "led.h" #endif
2.修改os_cfg.h,这是用来配置和裁剪内核的,也是跟上面一样,摘抄原子哥的例程,这里很多都不懂的,先跑通一次,成功看到效果再来就这正确的模板深入学习
#ifndef OS_CFG_H #define OS_CFG_H /* ---------------------- MISCELLANEOUS ----------------------- */ #define OS_APP_HOOKS_EN 0u /* Application-defined hooks are called from the uC/OS-II hooks */ #define OS_ARG_CHK_EN 0u /* Enable (1) or Disable (0) argument checking */ #define OS_CPU_HOOKS_EN 1u /* uC/OS-II hooks are found in the processor port files */ #define OS_DEBUG_EN 0u /* Enable(1) debug variables */ #define OS_EVENT_MULTI_EN 0u /* Include code for OSEventPendMulti() */ #define OS_EVENT_NAME_EN 0u /* Enable names for Sem, Mutex, Mbox and Q */ #define OS_LOWEST_PRIO 63u /* Defines the lowest priority that can be assigned ... */ /* ... MUST NEVER be higher than 254! */ #define OS_MAX_EVENTS 10u /* Max. number of event control blocks in your application */ #define OS_MAX_FLAGS 5u /* Max. number of Event Flag Groups in your application */ #define OS_MAX_MEM_PART 0u /* Max. number of memory partitions */ #define OS_MAX_QS 5u /* Max. number of queue control blocks in your application */ #define OS_MAX_TASKS 10u /* Max. number of tasks in your application, MUST be >= 2 */ #define OS_SCHED_LOCK_EN 1u /* Include code for OSSchedLock() and OSSchedUnlock() */ #define OS_TICK_STEP_EN 1u /* Enable tick stepping feature for uC/OS-View */ #define OS_TICKS_PER_SEC 200u /* Set the number of ticks in one second */ /* --------------------- TASK STACK SIZE ---------------------- */ #define OS_TASK_TMR_STK_SIZE 128u /* Timer task stack size (# of OS_STK wide entries) */ #define OS_TASK_STAT_STK_SIZE 128u /* Statistics task stack size (# of OS_STK wide entries) */ #define OS_TASK_IDLE_STK_SIZE 128u /* Idle task stack size (# of OS_STK wide entries) */ /* --------------------- TASK MANAGEMENT ---------------------- */ #define OS_TASK_CHANGE_PRIO_EN 1u /* Include code for OSTaskChangePrio() */ #define OS_TASK_CREATE_EN 1u /* Include code for OSTaskCreate() */ #define OS_TASK_CREATE_EXT_EN 1u /* Include code for OSTaskCreateExt() */ #define OS_TASK_DEL_EN 1u /* Include code for OSTaskDel() */ #define OS_TASK_NAME_EN 1u /* Enable task names */ #define OS_TASK_PROFILE_EN 1u /* Include variables in OS_TCB for profiling */ #define OS_TASK_QUERY_EN 1u /* Include code for OSTaskQuery() */ #define OS_TASK_REG_TBL_SIZE 1u /* Size of task variables array (#of INT32U entries) */ #define OS_TASK_STAT_EN 1u /* Enable (1) or Disable(0) the statistics task */ #define OS_TASK_STAT_STK_CHK_EN 1u /* Check task stacks from statistic task */ #define OS_TASK_SUSPEND_EN 1u /* Include code for OSTaskSuspend() and OSTaskResume() */ #define OS_TASK_SW_HOOK_EN 1u /* Include code for OSTaskSwHook() */ /* ----------------------- EVENT FLAGS ------------------------ */ #define OS_FLAG_EN 1u /* Enable (1) or Disable (0) code generation for EVENT FLAGS */ #define OS_FLAG_ACCEPT_EN 1u /* Include code for OSFlagAccept() */ #define OS_FLAG_DEL_EN 1u /* Include code for OSFlagDel() */ #define OS_FLAG_NAME_EN 1u /* Enable names for event flag group */ #define OS_FLAG_QUERY_EN 1u /* Include code for OSFlagQuery() */ #define OS_FLAG_WAIT_CLR_EN 1u /* Include code for Wait on Clear EVENT FLAGS */ #define OS_FLAGS_NBITS 16u /* Size in #bits of OS_FLAGS data type (8, 16 or 32) */ /* -------------------- MESSAGE MAILBOXES --------------------- */ #define OS_MBOX_EN 1u /* Enable (1) or Disable (0) code generation for MAILBOXES */ #define OS_MBOX_ACCEPT_EN 1u /* Include code for OSMboxAccept() */ #define OS_MBOX_DEL_EN 1u /* Include code for OSMboxDel() */ #define OS_MBOX_PEND_ABORT_EN 1u /* Include code for OSMboxPendAbort() */ #define OS_MBOX_POST_EN 1u /* Include code for OSMboxPost() */ #define OS_MBOX_POST_OPT_EN 1u /* Include code for OSMboxPostOpt() */ #define OS_MBOX_QUERY_EN 1u /* Include code for OSMboxQuery() */ /* --------------------- MEMORY MANAGEMENT -------------------- */ #define OS_MEM_EN 1u /* Enable (1) or Disable (0) code generation for MEMORY MANAGER */ #define OS_MEM_NAME_EN 1u /* Enable memory partition names */ #define OS_MEM_QUERY_EN 1u /* Include code for OSMemQuery() */ /* ---------------- MUTUAL EXCLUSION SEMAPHORES --------------- */ #define OS_MUTEX_EN 1u /* Enable (1) or Disable (0) code generation for MUTEX */ #define OS_MUTEX_ACCEPT_EN 1u /* Include code for OSMutexAccept() */ #define OS_MUTEX_DEL_EN 1u /* Include code for OSMutexDel() */ #define OS_MUTEX_QUERY_EN 1u /* Include code for OSMutexQuery() */ /* ---------------------- MESSAGE QUEUES ---------------------- */ #define OS_Q_EN 1u /* Enable (1) or Disable (0) code generation for QUEUES */ #define OS_Q_ACCEPT_EN 1u /* Include code for OSQAccept() */ #define OS_Q_DEL_EN 1u /* Include code for OSQDel() */ #define OS_Q_FLUSH_EN 1u /* Include code for OSQFlush() */ #define OS_Q_PEND_ABORT_EN 1u /* Include code for OSQPendAbort() */ #define OS_Q_POST_EN 1u /* Include code for OSQPost() */ #define OS_Q_POST_FRONT_EN 1u /* Include code for OSQPostFront() */ #define OS_Q_POST_OPT_EN 1u /* Include code for OSQPostOpt() */ #define OS_Q_QUERY_EN 1u /* Include code for OSQQuery() */ /* ------------------------ SEMAPHORES ------------------------ */ #define OS_SEM_EN 1u /* Enable (1) or Disable (0) code generation for SEMAPHORES */ #define OS_SEM_ACCEPT_EN 1u /* Include code for OSSemAccept() */ #define OS_SEM_DEL_EN 1u /* Include code for OSSemDel() */ #define OS_SEM_PEND_ABORT_EN 1u /* Include code for OSSemPendAbort() */ #define OS_SEM_QUERY_EN 1u /* Include code for OSSemQuery() */ #define OS_SEM_SET_EN 1u /* Include code for OSSemSet() */ /* --------------------- TIME MANAGEMENT ---------------------- */ #define OS_TIME_DLY_HMSM_EN 1u /* Include code for OSTimeDlyHMSM() */ #define OS_TIME_DLY_RESUME_EN 1u /* Include code for OSTimeDlyResume() */ #define OS_TIME_GET_SET_EN 1u /* Include code for OSTimeGet() and OSTimeSet() */ #define OS_TIME_TICK_HOOK_EN 1u /* Include code for OSTimeTickHook() */ /* --------------------- TIMER MANAGEMENT --------------------- */ #define OS_TMR_EN 0u /* Enable (1) or Disable (0) code generation for TIMERS */ #define OS_TMR_CFG_MAX 16u /* Maximum number of timers */ #define OS_TMR_CFG_NAME_EN 1u /* Determine timer names */ #define OS_TMR_CFG_WHEEL_SIZE 8u /* Size of timer wheel (#Spokes) */ #define OS_TMR_CFG_TICKS_PER_SEC 10u /* Rate at which timer management task runs (Hz) */ #endif
3.打开sys.h,打开ucosii:
4.注释掉stm32f10x_it.c中与os_cpu.asm重了的两个函数
5.编译,应该能通过了,
至此,ucosii的移植就完成了,接下来就是软件设计部分
#include <includes.h> //****START任务***** //设置任务优先级 #define START_TASK_PRIO 10 //开始任务优先级为最低 //设置任务堆栈大小 #define START_STK_SIZE 128 //任务堆栈 OS_STK START_TASK_STK[START_STK_SIZE]; //任务函数 void start_task(void *pdata); //******LED0任务***** #define LED0_TASK_PRIO 7 #define LED0_STK_SIZE 64 OS_STK LED0_TASK_STK[LED0_STK_SIZE]; void led0_task(void *pdata); //****LED1任务***** #define LED1_TASK_PRIO 6 #define LED1_STK_SIZE 128 OS_STK LED1_TASK_STK[LED1_STK_SIZE]; void led1_task(void *pdata); //*****浮点测试任务**** #define FLOAT_TASK_PRIO 5 #define FLOAT_STK_SIZE 128 __align(8)OS_STK FLOAT_TASK_STK[FLOAT_STK_SIZE]; void float_task(void *pdata); int main(void ){ delay_init(); NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); uart_init(115200); LED_Init(); OSInit(); OSTaskCreate(start_task,(void*)0,(OS_STK*)&START_TASK_STK[START_STK_SIZE-1],\ START_TASK_PRIO); OSStart(); return 0; } void start_task(void*pdata){ OS_CPU_SR cpu_sr = 0; pdata=pdata; OSStatInit(); //开启统计任务 OS_ENTER_CRITICAL();//进入临界区 //创建任务 OSTaskCreate(led0_task,(void*)0,(OS_STK*)&LED0_TASK_STK[LED0_STK_SIZE-1],\ LED0_TASK_PRIO); OSTaskCreate(led1_task,(void*)0,(OS_STK*)&LED1_TASK_STK[LED0_STK_SIZE-1],\ LED1_TASK_PRIO); OSTaskCreate(float_task,(void*)0,(OS_STK*)&FLOAT_TASK_STK[LED0_STK_SIZE-1],\ FLOAT_TASK_PRIO); OSTaskSuspend(START_TASK_PRIO);//挂起开始任务 OS_EXIT_CRITICAL(); //退出临界区 } void led0_task(void *pdata){ while(1){ LED0 = 0; delay_ms(80); LED0 = 1; delay_ms(400); } } void led1_task(void *pdata){ while(1){ LED1 = 0; delay_ms(300); LED1 = 1; delay_ms(300); } } void float_task(void *pdata){ OS_CPU_SR cpu_sr = 0; static float float_num = 0.01; while(1){ float_num += 0.01f; OS_ENTER_CRITICAL(); printf("float_num 的值为:%4f\r\n",float_num); OS_EXIT_CRITICAL(); delay_ms(500); } }
LED任务直接可视
浮点测试则在串口调试助手中可以看
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