[分享] LPC824 之IO控制闪灯

chifen · 发表于 2016-10-31 20:07:33

本帖最后由 chifen 于 2016-11-1 10:24 编辑

/*********************************************************************************************************
** Function name: myDelay
**
** Descriptions: 软件延时
** input parameters: ulTime:延时时间(ms)
** output parameters: 无
** Returned value: 无
*********************************************************************************************************/
void myDelay (uint32_t ulTime)
{
uint32_t i;
while (ulTime--) {
for (i = 0; i < 2401; i++);
}
}
int main(void) {
// Local variables
uint32_t temp;
// Configure the debug uart (see Serial.c)
setup_debug_uart();
// Reset the GPIO module and enable its clock. See peripherals_lib
GPIOInit();
// Config. (red LED), (blue LED), (green LED) as outputs,
// with LEDs off ('1' = off). See utilities_lib
Config_LEDs(RED | BLUE | GREEN);
GPIOSetDir( PORT0, 16, 1 );
for(temp=0;temp<20;temp++)
{
LEDs_On( GREEN);//兰灯亮
GPIOSetBitValue( PORT0, 16, 1 );//绿灯灭
myDelay(1000);
LEDs_Off( GREEN); //兰灯灭
GPIOSetBitValue( PORT0, 16, 0 );//绿灯亮
myDelay(1000);
}
//----------------------
}