STM32 高级定时TIM 死区时间计算--C语言实现

#include <stdio.h>
#include <math.h>
#include <stdlib.h>
#include <string.h>
int DTG[8]={0,0,0,0,0,0,0,0};
///是十进制转二进制
int dectobin(int n)
{
    int sum = 0;
    int y, x = 1; // y表示余数，x为叠加的系数
    while (n != 0)
    {
        y = n % 2;
        sum += x * y;
        x *= 10;
        n /= 2;
    }
    return sum;    
}
int main()
{
    double TDTS;
    double Tdtg1,Tdtg2,Tdtg3,Tdtg4;
    char str[100];
    double time;
    unsigned int frequency;
    bzero(str,sizeof(str));
    printf("1s = 1000ms \t 1ms = 1000us \t 1us = 1000ns\n");
    printf("输入定时器频率(MHZ)\n");
    scanf("%d",&frequency);
    TDTS = (1*1000.0*1000.0*1000.0)/(frequency*1000000.0);
    printf("TDTS: %0.2lf  ns\n",TDTS);
    sprintf(str,"%0.2lf",TDTS);    
    Tdtg1 = atof(str);
    printf("Tdtg1:%0.2lf\n",Tdtg1);
    
    printf("----------------第一种-------------\n");
    double DT1;///持续时间
    printf("tTdtg: %lf  ns\n",Tdtg1);
    printf("DTG[7:5]= 0xx => DT=DTG[6:0] × Tdtg1,Tdtg1 = TDTS\n");
    printf("Tdtg1: %0.2lf  ns\n",Tdtg1);
    DT1 = (pow(2,7)-1)*Tdtg1;
    printf("0--(2^(7)-1)*Tdtg1 :\n DT1 = 0ns ~~~~~%0.2lf ns\n",DT1);
    
    printf("----------------第二种-------------\n");
    double DT2_0,DT2_1;///持续时间
    Tdtg2 = atof(str)*2;
    printf("Tdtg2 = TDTS*2: %0.2lf ns\n",Tdtg2);
    printf("DTG[7:5]=10x => DT=(64+DTG[5:0])Tdtg2 , Tdtg2 = 2×TDTS\n");
    DT2_0 = 64*Tdtg2;
    DT2_1 = (64+(pow(2,6)-1))*Tdtg2;
    printf("(64 + 0 ~ 64 + 2 ^ 6 - 1)*2* Tdtg2:\n DT2 =%0.2lf ns~~~%0.2lf ns\n",DT2_0,DT2_1);
    
    printf("----------------第三种-------------\n");
    double DT3_0,DT3_1;///持续时间
    Tdtg3 = atof(str)*8;
    printf("Tdtg3 = TDTS*8: %0.2lf ns\n",Tdtg3);
    DT3_0 = 32*Tdtg3;
    DT3_1 = (32+(pow(2,5)-1))*Tdtg3;
    printf("DTG[7:5]=110 => DT=(32+DTG[4:0]) × Tdtg3,Tdtg3 = 8 × TDTS\n");
    printf("(32 + 0 ~ 32 + 2 ^ 5 - 1)*2* Tdtg3:\n DT3 =%0.2lf ns~~~%0.2lf ns\n",DT3_0,DT3_1);
    
    printf("----------------第四种-------------\n");
    double DT4_0,DT4_1;///持续时间
    Tdtg4 = atof(str)*16;
    printf("Tdtg4 = TDTS*16: %0.2lf ns\n",Tdtg4);
    DT4_0 = 32*Tdtg4;
    DT4_1 = (32+(pow(2,5)-1))*Tdtg4;
    printf("DTG[7:5]=110 =16> DT=(32+DTG[4:0]) × Tdtg4,Tdtg4 = 8 × TDTS\n");
    printf("(32+0~32+ 2^4 - 1)*2* Tdtg4: \n DT4 =%0.2lf ns~~~%0.2lf ns\n",DT4_0,DT4_1);
    
    printf("输入你需要死区时间(ns)--尽量选在区域内的范围的死区时间\n");
    scanf("%lf",&time);
    
    double ret = 0;
    int result = 0;
    if(time ==DT1 || time < DT1)
    {
        DTG[7]=0;
        printf("属于第一情况:最高永远为 0 \n");
        printf("DT1:%0.2lf\n",Tdtg1);
        ret =  time / Tdtg1+0.5; ////四舍五入
        printf("time / Tdtg1 =%0.0lf\n",ret);
        result = dectobin(ret);
        printf("位数不够7位时,在给寄存器赋值时要自已在前面手动补0----DTG[6:0]\n");
        printf("DTG[6:0]:%d\n",result);
　　　　 printf("DTG[7:0]:0b0 %d\n",result);　　
        return 0;

    }
    if((time >DT2_0 && time < DT2_1) || time == DT2_0 || time == DT2_1)
    {
        DTG[0]=1;DTG[1]=1;
        printf("属于第二情况:DTG[7:6]永远为 10 \n");
        printf("DT1:%0.2lf\n",Tdtg2);
        ret =  time / Tdtg2 - 64+0.5;    ////四舍五入
        printf("time / Tdtg2 =%0.0lf\n",ret);
        result =dectobin(ret);
        printf("位数不够6位时,在给寄存器赋值时要自已在前面手动补0----DTG[5:0]\n");
        printf("DTG[5:0]:%d\n",result);    
        printf("DTG[7:0]:0b10 %d\n",result);
        return 0;
    }
    if((time >DT3_0 && time < DT3_1 )|| time == DT3_0 || time == DT3_1)
    {
        DTG[0]=1;DTG[1]=1;DTG[2]=0;
        printf("属于第三情况:DTG[7:5]永远为 110 \n");
        printf("DT1:%0.2lf\n",Tdtg3);
        ret =  time / Tdtg3 - 32+0.5;    ////四舍五入
        printf("time / Tdtg3 =%0.0lf\n",ret);
        result =dectobin(ret);
        printf("位数不够5位时,在给寄存器赋值时要自已在前面手动补0----DTG[4:0]\n");
        printf("DTG[4:0]:%d\n",result);    
        printf("DTG[7:0]:0b110 %d\n",result);
        return 0;
    }
    if((time >DT4_0 && time < DT4_1 )|| time == DT4_0 || time == DT4_1)
    {
        DTG[0]=1;DTG[1]=1;DTG[2]=1;
        printf("属于第四情况:DTG[7:5]永远为 111 \n");
        printf("DT1:%0.2lf\n",Tdtg4);
        ret =  time / Tdtg4 - 32+0.5;    ////四舍五入
        printf("time / Tdtg4 =%0.0lf\n",ret);
        result =dectobin(ret);
        printf("位数不够5位时,在给寄存器赋值时要自已在前面手动补0----DTG[4:0]\n");
        printf("DTG[4:0]:%d\n",result);    
        printf("DTG[7:0]:0b110 %d\n",result);
    }
    return 0;
}

## 本次代码实现有些瑕疵，
**例如图片上第三种情况：**  定时器频率：72Mhz     死区时间：5000ns
## 这里的DTG[4:0]应该是 01101；DTG[7:0]应该是0b110 01101；
## 有能力者可以帮我完善一下也行！哈哈哈！## 有错误请指出