main.c

来自「LPC23XX GPIO 例程 来自MCU123开发板配套光盘」· C语言 代码 · 共 38 行

/*============================================================
LPC23XX 学习板 GPIO功能演示
作者: Mingtree	[e-mail]   http://www.mcu123.com
==============================================================
*/


#include <LPC23xx.H>
//

void delay (unsigned int dly)
{
	unsigned int i;
	
	for ( ; dly>0; dly--)
		for (i=0; i<50000; i++);
}

int main (void) {
  unsigned int n;

 PINSEL10 = 0;		 //禁止ETM

 FIO2DIR=0x000000ff;
 FIO2MASK = 0x00000000;



  while (1) {                               /* Loop forever */
    for (n = 0x00000001; n <= 0x00000080; n <<= 1) {
      /* Blink LED 0, 1, 2, 3, 4, 5, 6, 7 */
      FIO2SET = n;                           /* Turn on LED */
      delay(30);                              /* Delay */
      FIO2CLR = 0x000000FF;                  /* Turn off LEDs */
    }
  }
}