海思寄存器操作

谁借莪１个温暖的怀抱￠ 2022-05-21 04:14 336阅读 0赞

**如何查看和修改寄存器**

*   在程序中可以使用HI\_SYS\_ReadRegister，HI\_SYS\_WriteRegister接口进行寄存器的读写操作。
 *  l在单板命令行下，使用工具。

单板 /usr/sbin 目录下，有一系列寄存器操作相关的工具，分别介绍如下：

<table style="table-layout:fixed;width:0px;">       
 <tbody> 
  <tr> 
   <td style="color:rgb(57,57,57);border-color:rgb(167,167,167);vertical-align:middle;background-color:rgb(217,217,217);text-align:center;"> 
    <div> 
     <span style="font-family:SimHei, STHeiti;color:rgb(0,0,0);background-color:transparent;">工具</span> 
    </div></td> 
   <td style="color:rgb(57,57,57);border-color:rgb(167,167,167);vertical-align:middle;background-color:rgb(217,217,217);text-align:center;"> 
    <div> 
     <span style="font-family:SimHei, STHeiti;color:rgb(0,0,0);background-color:transparent;">参数</span> 
    </div></td> 
   <td style="color:rgb(57,57,57);border-color:rgb(167,167,167);vertical-align:middle;background-color:rgb(217,217,217);text-align:center;"> 
    <div> 
     <span style="font-family:SimHei, STHeiti;color:rgb(0,0,0);background-color:transparent;">功能</span> 
    </div></td> 
   <td style="color:rgb(57,57,57);border-color:rgb(167,167,167);vertical-align:middle;background-color:rgb(217,217,217);text-align:center;"> 
    <div> 
     <span style="font-family:SimHei, STHeiti;color:rgb(0,0,0);background-color:transparent;">备注</span> 
    </div></td> 
  </tr> 
  <tr> 
   <td style="color:rgb(57,57,57);border-color:rgb(167,167,167);vertical-align:middle;text-align:center;"> 
    <div> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">himd</span> 
    </div></td> 
   <td style="color:rgb(57,57,57);border-color:rgb(167,167,167);vertical-align:top;"> 
    <div> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">参数</span> 
     <span style="font-family:'Times New Roman';color:rgb(0,0,0);background-color:transparent;">1</span> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">：</span> 
     <span style="font-family:'Times New Roman';color:rgb(0,0,0);background-color:transparent;">address</span> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">，必选</span> 
    </div> 
    <div> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">参数</span> 
     <span style="font-family:'Times New Roman';color:rgb(0,0,0);background-color:transparent;">2</span> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">：</span> 
     <span style="font-family:'Times New Roman';color:rgb(0,0,0);background-color:transparent;">length</span> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">，可选</span> 
    </div></td> 
   <td style="color:rgb(57,57,57);border-color:rgb(167,167,167);vertical-align:top;"> 
    <div> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">从</span> 
     <span style="font-family:'Times New Roman';color:rgb(0,0,0);background-color:transparent;">address</span> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">开始，以大端方式打印</span> 
     <span style="font-family:'Times New Roman';color:rgb(0,0,0);background-color:transparent;">length</span> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">字节长度的内容。</span> 
    </div></td> 
   <td style="color:rgb(57,57,57);border-color:rgb(167,167,167);vertical-align:top;"> 
    <div> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">如果没有输入</span> 
     <span style="font-family:'Times New Roman';color:rgb(0,0,0);background-color:transparent;">length</span> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">，那么默认打印</span> 
     <span style="font-family:'Times New Roman';color:rgb(0,0,0);background-color:transparent;">256</span> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">字节。</span> 
    </div></td> 
  </tr> 
  <tr> 
   <td style="color:rgb(57,57,57);border-color:rgb(167,167,167);vertical-align:middle;text-align:center;"> 
    <div> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">himd.l</span> 
    </div></td> 
   <td style="color:rgb(57,57,57);border-color:rgb(167,167,167);vertical-align:top;"> 
    <div> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">参数</span> 
     <span style="font-family:'Times New Roman';color:rgb(0,0,0);background-color:transparent;">1</span> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">：</span> 
     <span style="font-family:'Times New Roman';color:rgb(0,0,0);background-color:transparent;">address</span> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">，必选</span> 
    </div> 
    <div> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">参数</span> 
     <span style="font-family:'Times New Roman';color:rgb(0,0,0);background-color:transparent;">2</span> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">：</span> 
     <span style="font-family:'Times New Roman';color:rgb(0,0,0);background-color:transparent;">length</span> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">，可选</span> 
    </div></td> 
   <td style="color:rgb(57,57,57);border-color:rgb(167,167,167);vertical-align:top;"> 
    <div> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">从</span> 
     <span style="font-family:'Times New Roman';color:rgb(0,0,0);background-color:transparent;">address</span> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">开始，以小端方式打印</span> 
     <span style="font-family:'Times New Roman';color:rgb(0,0,0);background-color:transparent;">length</span> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">字节长度的内容。</span> 
    </div></td> 
   <td style="color:rgb(57,57,57);border-color:rgb(167,167,167);vertical-align:top;"> 
    <div> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">如果没有输入</span> 
     <span style="font-family:'Times New Roman';color:rgb(0,0,0);background-color:transparent;">length</span> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">，那么默认打印</span> 
     <span style="font-family:'Times New Roman';color:rgb(0,0,0);background-color:transparent;">256</span> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">字节。</span> 
    </div></td> 
  </tr> 
  <tr> 
   <td style="color:rgb(57,57,57);border-color:rgb(167,167,167);vertical-align:middle;text-align:center;"> 
    <div> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">himc</span> 
    </div></td> 
   <td style="color:rgb(57,57,57);border-color:rgb(167,167,167);vertical-align:top;"> 
    <div> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">参数</span> 
     <span style="font-family:'Times New Roman';color:rgb(0,0,0);background-color:transparent;">1</span> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">：</span> 
     <span style="font-family:'Times New Roman';color:rgb(0,0,0);background-color:transparent;">address</span> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">，必选</span> 
    </div> 
    <div> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">参数</span> 
     <span style="font-family:'Times New Roman';color:rgb(0,0,0);background-color:transparent;">2</span> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">：</span> 
     <span style="font-family:'Times New Roman';color:rgb(0,0,0);background-color:transparent;">value</span> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">，必选</span> 
    </div> 
    <div> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">参数</span> 
     <span style="font-family:'Times New Roman';color:rgb(0,0,0);background-color:transparent;">3</span> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">：</span> 
     <span style="font-family:'Times New Roman';color:rgb(0,0,0);background-color:transparent;">length</span> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">，必选</span> 
    </div></td> 
   <td style="color:rgb(57,57,57);border-color:rgb(167,167,167);vertical-align:top;"> 
    <div> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">从</span> 
     <span style="font-family:'Times New Roman';color:rgb(0,0,0);background-color:transparent;">address</span> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">开始，把&nbsp;</span> 
     <span style="font-family:'Times New Roman';color:rgb(0,0,0);background-color:transparent;">length</span> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">字节长度的内容全部设置为</span> 
     <span style="font-family:'Times New Roman';color:rgb(0,0,0);background-color:transparent;">value</span> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">。</span> 
    </div></td> 
   <td style="color:rgb(57,57,57);border-color:rgb(167,167,167);vertical-align:top;"> 
    <div> 
     <span style="font-family:SimSun, STSong;color:rgb(0,0,0);background-color:transparent;">一般仅用于物理内存内容的修改。</span> 
    </div></td> 
  </tr> 
 </tbody> 
</table>

参数 address 既可以是寄存器地址，也可以是内存地址，所以以上工具也可以用于内存查看、修改。

1、btools -h/btools ：打印帮助信息

![70][]

2、hiddrs -h ：对ddr的占用进行统计

![70 1][]

使用例子见帮助信息

3、himc：内存清除

![70 2][]

4、himd：内存查看 ![70 3][]

5、himd.l：内存查看

![70 4][]

[70]: /images/20220521/9a8a678dce8c434398d29dc618486186.png
[70 1]: /images/20220521/471d0e26d49b4a86a48cac2cc77f178b.png
[70 2]: /images/20220521/87a5960c69514aaea5c868347230b2bb.png
[70 3]: /images/20220521/c130725174314bc4809b6ec7b71329b6.png
[70 4]: /images/20220521/93252bacfd924b7dae2608281ce52c6d.png