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uboot机构简介

├── api 存放uboot提供的API接口函数 ├── arch 平台相关的部分我们只需要关心这个目录下的ARM文件夹 │ ├──arm │ │ └──cpu │ │ │ └──armv7 │ │ └──dts │ │ │ └──/ .dts 存放设备的dts,也就是设备配置相关的引脚信息 ├─...
2022-07-07 07:10【栋哥修炼日记】
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位操作==c语言2

一、位操作符 1、位与注意：位与，逻辑。举例0xAA 0xF0=0xA0，0xAA 0xF0=1 2、位或注意：位或是，逻辑或是 3、位取反~ 注意：C语言中位取反是~，逻辑取反是。 4、位异或^ 0或1与1位异或就会取反，0或1与0位异或则不变、 5、位左移、位右移对于无符号数：...
2022-07-07 07:10【栋哥修炼日记】
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Analyze Android event distribution mechanism according to popular interview questions (II) -- event conflict analysis and handling

（ One ） Overview of incident conflict Event conflicts usually occur in the parent view Hezi view Combination of , for instance viewpager and listvi...
2022-07-07 09:52【Time swordsman】
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[untitled]

List of articles Preface 6 One 、Kotlin Variable definition and use Kotlin 13 Two 、Kotlin Built in data types Kotlin 22 3、 ... and 、 Compile ...
2022-07-07 09:52【Time swordsman】
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Future development blueprint of agriculture and animal husbandry -- vertical agriculture + artificial meat

https://img blog.csdnimg.cn/4d80e5330f054e31a664eb8065b98f37.png Precision farming can indeed use data to improve food production , But in ...
2022-07-07 09:52【Tongran IOT official website】
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AI moves from perception to intelligent cognition

AI From perception to cognition is an inevitable trend , Cognitive intelligence is the advanced stage of AI technology development , Designed ...
2022-07-07 09:52【Tongran IOT official website】
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Garbage disposal method based on the separation of smart city and storage and living digital home mode

Countries all over the world have carried out “ No waste city ” plan ： European cycle Environmental economic package , Plan to 2030 year ...
2022-07-07 09:52【Tongran IOT official website】
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Internship log - day04

Scattered records LoginPage https://img blog.csdnimg.cn/20200716094114982.png?x oss process=image/watermark,type ZmFuZ3poZW5naGVpdGk,shadow 10,text ...
2022-07-07 09:53【Don't ask me y】
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Integer inversion

1. The representation of signed numbers ： 2^ n 1 ——2 ^ n 1 1 2.0x and h Are used to express 16 Base number ,0x Indicates prefix , stay c/c++ Must use ...
2022-07-07 09:53【Don't ask me y】
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Writing file types generated by C language

1. Generated at authoring time .c file 2. Build at compile time .obj Target file 3. String the object file with various functions , Generate .exe Ex...
2022-07-07 09:53【Don't ask me y】
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Internship log - day07

spring framework Frame diagram https://img blog.csdnimg.cn/20200722091337567.png?x oss process=image/watermark,type ZmFuZ3poZW5naGVpdGk,shadow 10,te...
2022-07-07 09:53【Don't ask me y】
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Pit encountered by vs2015 under win7 (successful)

/ / Write it at the front ： We must see whether the hardware environment meets the requirements , Otherwise it will be very troublesome , It is sugge...
2022-07-07 09:53【Don't ask me y】
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Delete a record in the table in pl/sql by mistake, and the recovery method

Delete the data in the table for the second time I did it again last time I don't want to do it again this time Lazy Dharma is good The follo...
2022-07-07 09:53【Don't ask me y】
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Introduction to automated testing framework

1、 Tools ： selenium（web Mobile ）、requests（http Interface ）、appium（ Mobile ） 2、 Design patterns POM Page object model 、 Keyword Driven ） 3、 Data driv...
2022-07-07 09:53【Don't ask me y】
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Pytest learning - dayone

One 、pytest Unit test framework 1、 What is a unit test framework ： In the process of software development , The smallest unit for software （ funct...
2022-07-07 09:53【Don't ask me y】
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Three years after graduation

Three years after graduation 2008 year 6 month 25 Japan , Be reluctant to give up 、 In a state of longing and confusion for the future , I have gra...
2022-07-07 09:54【knight_ hf】
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Performance optimization record of the company's product "yunzhujia"

Recently, the performance of the company's products has been preliminarily verified and some preliminary optimization has been carried out , The foll...
2022-07-07 09:54【knight_ hf】
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The combination of over clause and aggregate function in SQL Server

Here is an example from the Internet ： use tempdb go if object id 'tb' is not null drop table tb go create table tb name varchar 10 , val int go ...
2022-07-07 09:54【knight_ hf】
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Why are social portals rarely provided in real estate o2o applications?

Now I see some real estate O2O Basically, the products provide some house viewing 、 Some rental services . But for users , Before buying a house 、 Bu...
2022-07-07 09:54【knight_ hf】
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Become a "founder" and make reading a habit

There are big words outside the gate of the daughter's School “ Develop your child's reading habits , When reading becomes a habit , The future of ch...
2022-07-07 09:54【knight_ hf】
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