?? main.c
字號:
/*************************************
Copyright 2001 by Haia Tech
海佳科技有限公司
www.haia2004.com
Email:haia2004@vip.sina.com
Tel:0731-4552122 4553216
*************************************/
#include "cpu_reg.h"
#include "string.h"
#define word_port (unsigned short *)0x007e
#define order_port (unsigned short *)0x007d
void print(unsigned short word);
int ms,f;
void main()
{
asm(" STM #0000h,CLKMD ");
while(*CLKMD & 0x01 );
asm(" STM #50c7h,CLKMD "); //設置CPU運行頻率=101M
/* 40c7h:5*clkin =60
50c7h:6*clkin =101M
8107h:9*clkin =108
7107h:8*clkin =96
*/
asm(" stm #4240h, SWWSR ");
//2 wait except for on-chip program 1
asm(" stm #00a0h, PMST "); //MP/MC = 0, IPTR = 001,ovly=1
asm(" stm #0802h, BSCR ");
asm(" STM #0h,IMR ");
asm(" STM #0010h,TCR "); //關定時器
asm(" STM #0186ah,PRD ");//1ms
asm(" STM #0C2fh,TCR "); //TCR=最后四位
asm(" STM #0008h,IFR ");
asm(" ORM #0008h,*(IMR) ");/*開時間中斷*/
asm(" RSBX INTM "); /*開中斷*/
print(0x1234);
print(0x5678);
// print(0x1234);
// f=0x4648;
// print((unsigned short)f);
f=1;
ms=0;
while(1)
{
while(ms<500/f); //LED_flash
ms=0;
asm(" RSBX XF ");
while(ms<500/f);
ms=0;
asm(" SSBX XF ");
}
}
interrupt void timer0()
{
ms++;
}
void print(unsigned short word)
{
unsigned int x,i;
*word_port=word;
*order_port=0x01;
for(i=0;i<20;i++)
for(x=0;x<30000;x++);
}
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