请问单片机大佬们,keil5的debug中如何显示数组中的值？ -

标题: 请问单片机大佬们,keil5的debug中如何显示数组中的值？ [打印本页]

作者: 15119014737 时间: 2021-2-1 21:26
标题: 请问单片机大佬们,keil5的debug中如何显示数组中的值？
以下是小弟C51单片机显示交通灯的代码，个人觉得逻辑上没问题，编译也没错误没警告，但是程序跑起来是彻底乱套，于是想通过debug观察其中每一个变量的值，特别是 uchar xianshi[8] 这一个数组中的值，于是我在主函数的第一条语句设置了断点以后，设置了watch1，但是始终没有显示uchar xianshi[8] 中的内容，而是

  D:0x0B xianshi[] "" 是什么意思？

以下是小弟我的单片机交通灯代码：
# include "reg52.h"

typedef unsigned int uint;
typedef unsigned char uchar;

sbit traffic = P1;
sbit duanxuan = P0;

sbit LSA = P2^2;
sbit LSB = P2^3;
sbit LSC = P2^4;

sbit bao_ren_hong = P1^0;
sbit bao_ren_lv = P1^1;

sbit bao_ma_hong = P1^2;
sbit bao_ma_huang = P1^3;
sbit bao_ma_lv = P1^4;

sbit qian_ma_hong = P1^5;
sbit qian_ma_huang = P1^6;
sbit qian_ma_lv = P1^7;

sbit qian_ren_hong = P3^0;
sbit qian_ren_lv = P3^1;

uchar num = 0;

code uchar smgdx[16] = {0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};  //共阴

uchar xianshi[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};

void delay(uint i)
{
      while(i--);
}

void Timer0() interrupt 1
{
      static uint a;
TH0 = 0xfc;
      TL0 = 0x18;
      a++;
      if(a==1000)       //定时一秒
            {
                  num++;
                        a = 0;
            }
}

void display()
{
uchar j;
      for(j=0;j<8;j++)
      {
            switch(j)
                              {
                                       //case 0: LSA=0,LSB=0,LSC=0;break;
                           //case 1: LSA=1,LSB=0,LSC=0;break;
                           case 2: LSA=0,LSB=1,LSC=0;break;
                           case 3: LSA=1,LSB=1,LSC=0;break;
                           //case 4: LSA=0,LSB=0,LSC=1;break;
                           //case 5: LSA=1,LSB=0,LSC=1;break;
                           case 6: LSA=0,LSB=1,LSC=1;break;
                           case 7: LSA=1,LSB=1,LSC=1;break;
                              }
                              if(num<31)
                              {
                                 xianshi[0] = 0x00;
                                       xianshi[1] = 0x00;
                                       xianshi[2] = smgdx[(30-num)/10];
                                       xianshi[3] = smgdx[(30-num)%10];
                                       xianshi[4] = 0x00;
                                       xianshi[5] = 0x00;
                                       xianshi[6] = smgdx[(30-num)/10];
                                       xianshi[7] = smgdx[(30-num)%10];
                                       duanxuan = xianshi[j];
                                 delay(50);
                                 duanxuan = 0x00;
                              }
                              if((31<=num)&&(num<36))
                              {
                                 xianshi[0] = 0x00;
                                       xianshi[1] = 0x00;
                                       xianshi[2] = smgdx[(35-num)/10];
                                       xianshi[3] = smgdx[(35-num)%10];
                                       xianshi[4] = 0x00;
                                       xianshi[5] = 0x00;
                                       xianshi[6] = smgdx[(35-num)/10];
                                       xianshi[7] = smgdx[(35-num)%10];
                                       duanxuan = xianshi[j];
                                 delay(50);
                                 duanxuan = 0x00;
                              }
      if((36<=num)&&(num<66))
                              {
                                 xianshi[0] = 0x00;
                                       xianshi[1] = 0x00;
                                       xianshi[2] = smgdx[(66-num)/10];
                                       xianshi[3] = smgdx[(66-num)%10];
                                       xianshi[4] = 0x00;
                                       xianshi[5] = 0x00;
                                       xianshi[6] = smgdx[(66-num)/10];
                                       xianshi[7] = smgdx[(66-num)%10];
                                       duanxuan = xianshi[j];
                                 delay(50);
                                 duanxuan = 0x00;
                              }
                              if((num<=66)&&(num<71))
                              {
                                 xianshi[0] = 0x00;
                                       xianshi[1] = 0x00;
                                       xianshi[2] = smgdx[(71-num)/10];
                                       xianshi[3] = smgdx[(71-num)%10];
                                       xianshi[4] = 0x00;
                                       xianshi[5] = 0x00;
                                       xianshi[6] = smgdx[(71-num)/10];
                                       xianshi[7] = smgdx[(71-num)%10];
                                       duanxuan = xianshi[j];
                                 delay(50);
                                 duanxuan = 0x00;
                              }
}
}
void Timer0_open()
{
TMOD = 0x01;
      EA = 1;
      ET0 = 1;
      TR0 = 1;
      TH0 = 0xfc;    //定时1ms
      TL0 = 0x18;
}
void main()
{
Timer0_open();
      while(1)
{
            if(num<31)
                  {
         traffic = 0xff;             //先让全部交通灯熄灭
                                       bao_ren_hong = 0;
         bao_ma_hong = 0;
         qian_ma_lv = 0;
         qian_ren_lv = 0;
                                       display();
                  }
                              if((31<=num)&&(num<36))
                              {
                                       traffic = 0xff;             //先让全部交通灯熄灭
                                       bao_ren_hong = 0;
         bao_ma_hong = 0;
         qian_ma_huang = 0;
         qian_ren_lv = 0;
                                       display();
                              }
            if((36<=num)&&(num<66))
                              {
                                       traffic = 0xff;          //先让全部交通灯熄灭
         bao_ren_lv = 0;
         bao_ma_lv = 0;
         qian_ma_hong = 0;
         qian_ren_hong = 0;
                                       display();
                              }
                              if((num<=66)&&(num<71))
                              {
                                       traffic = 0xff;             //先让全部交通灯熄灭
         bao_ren_lv = 0;
         bao_ma_huang = 0;
         qian_ma_hong = 0;
         qian_ren_hong = 0;
                                       display();
                              }
                              if(num==70)
                                       num = 0;
}
}

小弟我就想问一下keil 5 的debug中如何显示一个数组的值，是需要手动输入数组的初值吗？  watch 1中显示的D:0x0B xianshi[] ""  是什么意思呢？谢谢各位大佬！

作者: csmyldl 时间: 2021-2-2 09:22
D:0x0B xianshi[] "" 是什么意思？这个意思是数组分配的地址在内存0x0B开始的存储单元，要看到数据，只需要通过菜单打开：VIEW→MEMORY WINDOWS→MEMORY1, 然后在弹昢的窗口中输入d:0x0B 就可以看到连续8个存储单元的值是该数组的值

作者: 我一岁 时间: 2021-2-2 16:16
左侧小加号可以展开的啊

作者: 15119014737 时间: 2021-2-2 23:51

csmyldl 发表于 2021-2-2 09:22
D:0x0B xianshi[] "" 是什么意思？这个意思是数组分配的地址在内存0x0B开始的存储单元，要看到数据，只需要 ...

感谢您的解答！可我按照您的操作，view→memory windows→memory 1操作以后，出现这个界面：C:\Users\11587\Desktop ，我点击单步执行，xianshi[] 的寄存器中值一直都没有变？

作者: jack-tommy 时间: 2021-2-3 09:10
把“+”号点开就行了

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