#include???????
#include?“derivative.h“

int?u_lu_ru0;????int?speedbackq;??????
float?u1u2m;

//設(shè)置鎖相環(huán)

void?PLL_Init（void）????????????//總線頻率80M
{
????CLKSEL_PLLSEL?=?0;?????????//不選擇鎖相環(huán)
????PLLCTL_PLLON?=?0;??????????//關(guān)閉鎖相環(huán)電路
????SYNR?=?0xc0?|?0x09;????????//倍頻???????????????????????????????
????REFDV?=?0xc0?|?0x01;???????//分頻?????
???????????????????????????????//計(jì)算公式：??f（OSC）=16??f（VCO）=?2?×?f（OSC）*?（1+SYNDIV）/（REFDIV?+?1）=128M????
????POSTDIV?=?0x00;????????????//一分頻;?f（PLL）=f（VCO）=64M???????????????????????????????????????????????????
????PLLCTL_PLLON?=?1;??????????????????????????
????while（CRGFLG_LOCK?==?0）;??
????CLKSEL_PLLSEL?=?1;?????????//選擇鎖相環(huán)時(shí)鐘???????
??
?}??????????????????????????????????????????????????????????????????????????????????????????????



//延時(shí)函數(shù)

void?DelayMs（unsigned?int?i）???????//總線頻率為80MHz時(shí)??i=???1????時(shí)間為????1ms
???????????????????????????????????
{??????????????????????????????????
?????????????????????????????