CC2640R2F&TI-RTOS 拿到 TI CC2640R2F 开发板第四件事就是修改第三件事信号量超时改为事件超时，并增加事件控制，用于控制LED 闪烁时间或者关闭...-白红宇

CC2640R2F&TI-RTOS 拿到 TI CC2640R2F 开发板第四件事就是修改第三件事信号量超时改为事件超时，并增加事件控制，用于控制LED 闪烁时间或者关闭...

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发布时间：2019-06-20

本文共 3534 字，大约阅读时间需要 11 分钟。

/* * data_process.c * *  Created on: 2018年7月5日 *      Author: admin */#include "board_led.h"#include "board_uart.h"#include "data_process.h"// Task configuration#define LF_TASK_PRIORITY      1#define LF_TASK_STACK_SIZE   512// Task configurationTask_Struct lfTask;Char lfTaskStack[LF_TASK_STACK_SIZE];Event_Handle eventLedFickerHandle;/********************************************************************* * @fn      LedFicker_createTask * * @brief   Task creation function for the led ficker. * * @param   None. * * @return  None. */void LedFicker_createTask(void){  Task_Params taskParams;  // Configure task  Task_Params_init(&taskParams);  taskParams.stack = lfTaskStack;  taskParams.stackSize = LF_TASK_STACK_SIZE;  taskParams.priority  = LF_TASK_PRIORITY;  Task_construct(&lfTask, LedFicker_taskFxn, &taskParams, NULL);}/********************************************************************* * @fn      LedFicker_taskFxn * * @brief   Application task entry point for the Led Ficker. * * @param   a0, a1 - not used. * * @return  None. */static void LedFicker_taskFxn(UArg a0, UArg a1){
    /* LED 闪烁任务，默认200ms闪烁一次，可以通过事件通知的方式更改LED闪烁频率 */    uint32_t events;    uint32_t timeoutInTicks = 200 * (1000/Clock_tickPeriod);    Event_Params eventParams;    Event_Struct structEvent; /* Memory allocated at build time */    Event_Params_init(&eventParams);    Event_construct(&structEvent, &eventParams);    /* It's optional to store the handle */    eventLedFickerHandle = Event_handle(&structEvent);    if (eventLedFickerHandle == NULL) {        /* PIN_open() failed */        bspDebugPrintf( true,"eventLedFickerHandle Init false.\r\n" );        while (1);    }    else    {      bspDebugPrintf( true,"eventLedFickerHandle Init ok.\r\n" );    }    // Application main loop    for (;;)    {        /* Wait for an event to be posted */        events = Event_pend(eventLedFickerHandle,                            Event_Id_NONE,                            LED_FICKER_OFF_EVT |                            LED_FICKER_100MS_EVT |                            LED_FICKER_1S_EVT,                            timeoutInTicks);        //翻转LED灯        ledBoardToggle( ledBlueBoard );        ledBoardToggle( ledRedBoard );        if (events & LED_FICKER_OFF_EVT)        {            timeoutInTicks = BIOS_WAIT_FOREVER;/* 超时时间改为永久，这样就关闭了LED */            //关闭LED灯            ledBoardOff( ledBlueBoard );            ledBoardOff( ledRedBoard );        }        if (events & LED_FICKER_100MS_EVT)        {            timeoutInTicks =  100 * (1000/Clock_tickPeriod);/* 超时时间改为100ms，这样LED就会100ms翻转一次 */        }        if (events & LED_FICKER_1S_EVT)        {            timeoutInTicks = 1000 * (1000/Clock_tickPeriod);/* 超时时间改为1s，这样LED就会1s翻转一次 */        }    }}void eventLedFicker_post( uint32_t event ){    if( eventLedFickerHandle )        Event_post(eventLedFickerHandle, event);}

/* * data_process.h * *  Created on: 2018年7月5日 *      Author: admin */#ifndef APPLICATION_DATA_PROCESS_H_#define APPLICATION_DATA_PROCESS_H_#include 
     
      #include 
      
       #include 
       
        #include 
        
         #define LED_FICKER_OFF_EVT            Event_Id_00 /* led 闪烁关闭 */#define LED_FICKER_100MS_EVT          Event_Id_01 /* led 100MS 闪烁一次 */#define LED_FICKER_1S_EVT             Event_Id_02 /* led 1S 闪烁一次 */void LedFicker_createTask(void);static void LedFicker_taskFxn(UArg a0, UArg a1);void eventLedFicker_post( uint32_t event );#endif /* APPLICATION_DATA_PROCESS_H_ */