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BLE通信



  在BLE已成功连接后,OSAL中的一个事件运行时间过长,会导致BLE连接断开,无法正常通信,请问有什么方法可以解决这个问题?

  • hi jianlong,

    是什么类型的事件呢?

    能否用timer之类的定时隔段时间去处理呢?

  • 不能用定时器,是一个需要较长时间处理的子程序,可以用延时来代替进行模拟:

    HalLcd_HW_WaitUs(1000); //延时一秒钟

    void HalLcd_HW_WaitUs(uint16 microSecs)
    {
    while(microSecs--)
    {
    /* 32 NOPs == 1 usecs */
    asm("nop"); asm("nop"); asm("nop"); asm("nop"); asm("nop");
    asm("nop"); asm("nop"); asm("nop"); asm("nop"); asm("nop");
    asm("nop"); asm("nop"); asm("nop"); asm("nop"); asm("nop");
    asm("nop"); asm("nop"); asm("nop"); asm("nop"); asm("nop");
    asm("nop"); asm("nop"); asm("nop"); asm("nop"); asm("nop");
    asm("nop"); asm("nop"); asm("nop"); asm("nop"); asm("nop");
    asm("nop"); asm("nop");
    }
    }