单片机ucosiii移植实验

单片机：STM32F407

开发板：DMF407电机开发板

平台：keil V5.31

HSE 为8MHZ

HSI为16MHZ

主函数：

复制代码

int main(void)
{
    HAL_Init();                         /* 初始化HAL库 */
    sys_stm32_clock_init(336, 8, 2, 7); /* 设置时钟,168Mhz */
    delay_init(168);                    /* 延时初始化 */
    usart_init(115200);                 /* 串口初始化为115200 */
    led_init();                         /* 初始化LED */
    lcd_init();                         /* 初始化LCD */
    key_init();                         /* 初始化按键 */
    my_mem_init(SRAMIN);                /* 初始化内部SRAM内存池 */
    my_mem_init(SRAMCCM);               /* 初始化内部SRAMCCM内存池 */
    
    uc_os3_demo();                      /* 运行uC/OS-III例程 */
}

ucos3：

复制代码

void uc_os3_demo(void)
{
    OS_ERR err;
    
    lcd_show_string(10, 10, 220, 32, 32, "STM32", RED);
    lcd_show_string(10, 47, 220, 24, 24, "uC/OS-III Porting", RED);
    lcd_show_string(10, 76, 220, 16, 16, "ATOM@ALIENTEK", RED);
    
    /* 初始化uC/OS-III */
    OSInit(&err);
    
    /* 创建Start Task */
    OSTaskCreate(   (OS_TCB        *)&StartTask_TCB,
                    (CPU_CHAR      *)"start_task",
                    (OS_TASK_PTR    )start_task,
                    (void          *)0,
                    (OS_PRIO        )START_TASK_PRIO,
                    (CPU_STK       *)StartTask_STK,
                    (CPU_STK_SIZE   )START_STK_SIZE / 10,
                    (CPU_STK_SIZE   )START_STK_SIZE,
                    (OS_MSG_QTY     )0,
                    (OS_TICK        )0,
                    (void          *)0,
                    (OS_OPT         )(OS_OPT_TASK_STK_CHK | OS_OPT_TASK_STK_CLR),
                    (OS_ERR        *)&err);
    
    /* 开始任务调度 */
    OSStart(&err);
    
    for (;;)
    {
        /* 不会进入这里 */
    }
}

task

复制代码

void start_task(void *p_arg)
{
    OS_ERR err;
    CPU_INT32U cnts;
    
    /* 初始化CPU库 */
    CPU_Init();
    
    /* 根据配置的节拍频率配置SysTick */
    cnts = (CPU_INT32U)(HAL_RCC_GetSysClockFreq() / OSCfg_TickRate_Hz);
    OS_CPU_SysTickInit(cnts);
    
    /* 开启时间片调度，时间片设为默认值 */
    OSSchedRoundRobinCfg(OS_TRUE, 0, &err);
    
    /* 创建Task1 */
    Task1Task_STK = (CPU_STK *)mymalloc(SRAMIN, TASK1_STK_SIZE * sizeof(CPU_STK));
    OSTaskCreate(   (OS_TCB        *)&Task1Task_TCB,
                    (CPU_CHAR      *)"task1",
                    (OS_TASK_PTR    )task1,
                    (void          *)0,
                    (OS_PRIO        )TASK1_PRIO,
                    (CPU_STK       *)Task1Task_STK,
                    (CPU_STK_SIZE   )TASK1_STK_SIZE / 10,
                    (CPU_STK_SIZE   )TASK1_STK_SIZE,
                    (OS_MSG_QTY     )0,
                    (OS_TICK        )0,
                    (void          *)0,
                    (OS_OPT         )(OS_OPT_TASK_STK_CHK | OS_OPT_TASK_STK_CLR),
                    (OS_ERR        *)&err);
    
    /* 创建Task2 */
    Task2Task_STK = (CPU_STK *)mymalloc(SRAMIN, TASK2_STK_SIZE * sizeof(CPU_STK));
    OSTaskCreate(   (OS_TCB        *)&Task2Task_TCB,
                    (CPU_CHAR      *)"task2",
                    (OS_TASK_PTR    )task2,
                    (void          *)0,
                    (OS_PRIO        )TASK2_PRIO,
                    (CPU_STK       *)Task2Task_STK,
                    (CPU_STK_SIZE   )TASK2_STK_SIZE / 10,
                    (CPU_STK_SIZE   )TASK2_STK_SIZE,
                    (OS_MSG_QTY     )0,
                    (OS_TICK        )0,
                    (void          *)0,
                    (OS_OPT         )(OS_OPT_TASK_STK_CHK | OS_OPT_TASK_STK_CLR),
                    (OS_ERR        *)&err);
    
    /* 删除Start Task */
    OSTaskDel((OS_TCB *)0, &err);
}

void task1(void *p_arg)
{
    uint32_t task1_num = 0;
    OS_ERR err;
    
    while(1)
    {
        lcd_clear(lcd_discolor[++task1_num % 14]);                      /* 刷新屏幕 */
        lcd_show_string(10, 10, 220, 32, 32, "STM32", RED);
        lcd_show_string(10, 47, 220, 24, 24, "uC/OS-III Porting", RED);
        lcd_show_string(10, 76, 220, 16, 16, "ATOM@ALIENTEK", RED);
        LED0_TOGGLE();                                                  /* LED0闪烁 */
        OSTimeDly(1000, OS_OPT_TIME_DLY, &err);                         /* 延时1000ticks */
    }
}

void task2(void *p_arg)
{
    float float_num = 0.0;
    OS_ERR err;
    
    while(1)
    {
        float_num += 0.01f;                         /* 更新数值 */
        printf("float_num: %0.4f\r\n", float_num);  /* 打印数值 */
        OSTimeDly(1000, OS_OPT_TIME_DLY, &err);     /* 延时1000ticks */
    }
}

测试结果：