UCOSIII的例4-1中主函数和开始任务有的地方没看懂，求教

2938690046 · 发表于 2016-2-23 20:52:18

int main(void)
{

while（1）；//我将其注释掉，也不影响程序运行呀？？
}

//开始任务函数
void start_task(void *p_arg)
{

OS_ERR err;
CPU_SR_ALLOC();
p_arg = p_arg;
CPU_Init();//我将其注释掉，也不影响程序运行呀？？

}

恳请赐教

augustedward · 发表于 2016-2-23 20:52:19

第一个当然不影响运行了，只是出于程序完整性，习惯加上去的！
第二个如果不要的话，应该是会出问题的。只是目前你没遇到尔已！
/*
*********************************************************************************************************
*                                           CPU_Init()
*
* Description : (1) Initialize CPU module :
*
*                (a) Initialize CPU timestamps
*                (b) Initialize CPU interrupts disabled time measurements
*                (c) Initialize CPU host name
*
*
* Argument(s) : none.
*
* Return(s) : none.
*
* Caller(s) : Your Product's Application.
*
*             This function is a CPU initialization function & MAY be called by application/
*             initialization function(s).
*
* Note(s)    : (2) CPU_Init() MUST be called ... :
*
*                (a) ONLY ONCE from a product's application; ...
*                (b) BEFORE product's application calls any core CPU module function(s)
*
*             (3) The following initialization functions MUST be sequenced as follows :
*
*                (a) CPU_TS_Init()          SHOULD precede ALL calls to other CPU timestamp functions
*
*                (b) CPU_IntDisMeasInit() SHOULD precede ALL calls to CPU_CRITICAL_ENTER()/CPU_CRITICAL_EXIT()
*                                                 & other CPU interrupts disabled time measurement functions
*********************************************************************************************************
*/