FX3/CX3 timestamp

Cypress 有一个函数CyU3PGetTime 来获取系统运行后的时间，单位是毫秒，返回值是32位的整数。
代码如下：

uint32_t time0 = CyU3PGetTime();// ms
void  CyCx3AppThread_Entry (uint32_t input)
{
    CyCx3AppDebugInit();
    for (;;)
        {
                CyU3PThreadSleep (1000);
                CyU3PDebugPrint (2, "time from start in ticks: %d\n", CyU3PGetTime ());
        }
}