XS128外部H7口J0口中断例程

凌风 · 发表于 2010-2-26 13:22:40

XS128外部H7口J0口中断例程
[ 2009-4-19 4:58:00 | By: 龙丘 ]

0
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龙丘智能车多功能开发平台
Designed by Chiu Sir
E-mail:chiusir@163.com
软件版本:V1.0
最后更新:2009年4月19日
相关信息参考下列地址：
博客：  http://longqiu.21ic.org
淘宝店：http://shop36265907.taobao.com
------------------------------------
Code Warrior 5.0
Target : MC9S12XS128
Crystal: 16.000Mhz
busclock:16.000MHz
pllclock:32.000MHz

使用说明：
H7,J0外部中断演示，分别亮灭PB0和PB2。
============================================*/
＃i nclude "derivative.h"
＃i nclude <stdio.h>
＃i nclude <string.h>
＃i nclude "LQfun.h"
＃i nclude "LQ12864.h"

#pragma CODE_SEG __NEAR_SEG NON_BANKED
void interrupt 24 PORTJ_ISR(void)
{
  PORTB_PB0=~PORTB_PB0;
  PIFJ_PIFJ0=1; //清除中断标志位
}
#pragma CODE_SEG __NEAR_SEG NON_BANKED
void interrupt 25 PORTH_ISR(void)
{
  PORTB_PB2=~PORTB_PB2;
  PIFH_PIFH7=1; //清除中断标志位
}
static void Port_Init(void)
{
DDRA = 0xff;  //LCD1100,PA0--4,PA67 D1D2
PORTA= 0x00;

DDRB = 0xff;  //LED  PTB0--7,
PORTB= 0xff;  //LEDs on

DDRE = 0xFF;  //MOTOR CONTROL
PORTE= 0x00;  //P

DDRH = 0x00; // PORTH input
PTIH = 0X00; // KEY,PH0--5
PERH = 0xff; // PORTH pull up
PPSH = 0x00; // Port H Polarity Select Register-falling edge
PIEH = 0x80; // PORTH interrut disable,
               // PH7判断奇偶场换场信号

DDRJ = 0X00; // PJ0判断行同步脉冲到达
//PPSJ = 0x01; // Port J Polarity Select Register-rising EDGE
PPSJ = 0x00; // Port J Polarity Select Register-falling EDGE
PIEJ = 0X01; // VIDEO SYNC INTERRUPT DISABLED,BUT NOT IN MAIN()
PERJ = 0xff;

DDRM = 0XFF; // motor2的驱动模块MC33886的初始化子程序
PTIM = 0X01; // EN

M0=0,operating run;
PERM = 0xff; // EN:PM0=1,full run;

DDR1AD0=0xF8;
PT1AD0 =0xFF;
}
void SetBusCLK_32M(void)
{
CLKSEL=0X00; // disengage PLL to system
PLLCTL_PLLON=1; // turn on PLL
SYNR =0x40 | 0x03;  // pllclock=2*osc*(1+SYNR)/(1+REFDV)=64MHz;
REFDV=0xc0 | 0x01;
POSTDIV=0x00;
_asm(nop);       // BUS CLOCK=32M
_asm(nop);
while(!(CRGFLG_LOCK==1)); //when pll is steady ,then use it;
CLKSEL_PLLSEL =1;       //engage PLL to system;
}
void Dly_ms(int ms)
{
int ii,jj;
if (ms<1) ms=1;
for(ii=0;ii<ms;ii++)
   //for(jj=0;jj<1335;jj++);  //16MHz--1ms
   for(jj=0;jj<2770;jj++);  //32MHz--1ms
   //for(jj=0;jj<4006;jj++);  //48MHz--1ms
   //for(jj=0;jj<5341;jj++); //64MHz--1ms
}

//============================MAIN()===========================
void main(void)
{
  /* put your own code here */
  byte i=0;

  Port_Init();          // initial board
  SetBusCLK_32M();
  PORTB=0XFF;
  EnableInterrupts;
  for(;;)
  {
   Dly_ms(500);
   PORTB_PB1=~PORTB_PB1;
  }
  /* please make sure that you never leave this */
}