資源簡(jiǎn)介
自己寫的代碼，調(diào)試能用，車賽中用過。沒有用ECT和H口資源，用通用IO口發(fā)送和接送脈沖來驅(qū)動(dòng)超聲波工作，用定時(shí)器定時(shí)。
代碼片段和文件信息
#include???????/*?common?defines?and?macros?*/
#include?“derivative.h“??????/*?derivative-specific?definitions?*/
?
unsigned?int?time_start=0;
unsigned?int?time_over=0;
float?time_rising=0;
unsigned?int?distance=0;
unsigned?char?LedCode[]={0xc00xf90xa40xb00x990x920x820xf80x800x900xbf};
unsigned?char?LedData[]={0000};
unsigned?char?LedNum=0;
uchar?PA1=0;
int?flag1=0;
int?flag2=0;
int?flag3=0;
int?flag4=0;
unsigned?int?time=0;
//----------------
/****************************準(zhǔn)確延時(shí)*****************************/
//---------------------------2us準(zhǔn)確延時(shí)__40M-----------------------------
/*void?delay2us（int?c）?
{
??int?cnt0;
??for（cnt0=0;cnt0<2*c;cnt0++）?
??{
??????_asm?NOP;?_asm?NOP;_asm?NOP;_asm?NOP;
??????_asm?NOP;?_asm?NOP;_asm?NOP;_as 評(píng)論
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