ARM流水燈實(shí)驗(yàn) LPC213芯片

ID:665425 · 發(fā)表于 2019-12-18 15:13

#include  "config.h"
#include "lpc213x.h"

void DelayNs(uint32 dly)
{       uint32       i;
      for(;dly;dly--)
            for(i=0;i<5000;i++);
}

void Left()
{
      uint8       i;
      uint32  MOVE ;
      for (i=0;i<8;i++)
      {
            MOVE  = 1 << i;
            IO0CLR = MOVE ;
            DelayNs(10);
            IO0SET = MOVE ;
            DelayNs(10);
      }
}

void Right()
{
      uint8       i;
      uint32  MOVE;
      for (i=0;i<8;i++)
      {
            MOVE  = 0X80 >> i;
            IO0CLR = MOVE ;
            DelayNs(10);
            IO0SET = MOVE ;
            DelayNs(10);
            }
}

int main(void)
{
      PINSEL0       = 0x00000000;
      PINSEL1       = 0x00000000;
      IO0DIR = 0x000000FF;
      IO0SET = 0x000000FF; //高電平為關(guān)燈.
      while(1)
      {
      if(IO0PIN&0x20000000)
               Left();
      else
               Right();
      }
}

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ARM流水燈實(shí)驗(yàn) LPC213芯片

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