led.c

LPC2129实现从SPI通讯和两个串口定时器中断

 #include "led.h"
 
 #define led 0x00010000	   //P1.16

void delay_ns(int ns)
{
  int delay;
  for(;ns>0;ns--)
     for(delay=0;delay<5000;delay++);
}

void led_on()
{
  PINSEL1=0x00000000;
  IO1DIR=led;
while(1)
{
  IO1SET=led;
  delay_ns(100);
  IO1CLR=led;
  delay_ns(100);
}
}