PCB design, Altium Designer software draws a circuit schematic diagram and PCB diagram of the smallest system of stm32.

1. Introduction to Altium Designer

1). Basic introduction

      Altium Designer (AD for short) is a professional software for designing schematics and PCBs. It is very powerful, easy to use, and easy to use. Everyone is familiar with its predecessor, Protel. I learned Protel in school, but I didn't use Protel except for finishing homework. Now many engineers around bug still use Protel to design PCB. AD is an upgraded version of Protel. We will not introduce the history of AD in detail here. If you are interested, you can search it online. Here we will briefly introduce AD ​​and its use process. Here is the AD19 version used by the bug.
      In AD, the project level is "Project Group" (previously called WorkSpace) -> "Project" -> "File" (schematic diagram, PCB).
      Usually one project is one PCB project and one work A group can contain multiple projects, and a project can contain multiple schematics and PCBs.

2) The overall process of PCB design

1. Scheme analysis
       For the specific project facing, the engineer first does the overall principle design of different schemes, then compares and confirms the schemes, and selects the components.

2. Circuit simulation
       Do circuit simulation for the whole circuit or partial circuit determined in the plan to estimate the circuit parameters, and use the simulation results to modify the defects in the design plan.

3 Design schematic
       The schematic design part also needs to do the design of the schematic library. Although the Altium Designer 10 software comes with a part of the library, it does not include all the components on the market, especially the latest components. In the process of drawing the schematic diagram, the complexity of the overall schematic diagram determines which structure design method is adopted. The so-called hierarchical schematic design provides convenience for engineers to make complex circuit boards. In the later stage of the schematic design, use ERC (Electrical Rules Check) to check for errors, find out the cause of the error and modify the schematic.

4 Package of design assembly
       For the package design of the device, mainly check the device manual. It is also possible to directly use the measuring tool to measure the actual tool of the device, and then package it.

5 PCB board design
       After determining the mechanical size of the PCB, the engineer imports the original road map that has passed the ERC test into the PCB board, and sets the PCB rules and the number of layers of the board according to the actual requirements of the project. Layout occupies most of the time in PCB design. A good hardware engineer has very strict requirements for layout, especially electromagnetic compatibility issues. After the layout is completed, wiring, teardrop, copper laying, and DRC (Designer Rule Check) test are followed.

6 Proofreading review
       After the engineer completes the PCB design, he needs to proofread the circuit he designed to make sure that the hardware circuit designed in the scheme has not been modified by mistake due to special reasons. For complex circuit boards, the division of labor and cooperation by multiple people will eventually be completed by the PCB engineer. It is more necessary for multiple people to proofread the circuit diagrams and PCB parts of their respective designs, and finally the project engineer will do the overall review.

7 Document organization
       This part is mainly divided into three parts of people's work: exporting the GERBER documents required for board making, bill of materials (BOM) production, exporting schematic files, and printing out.

2. Install Altium Designer

There are many tutorials on the Internet and I won’t introduce them in detail here (for resources, please follow the WeChat public account: Huoer software installation)
       我自己也去了解了一下这个剥啄就讲得很好

分享链接: https://blog.csdn.net/weixin_42693097/.
这我安装成功之后的状态：
图标：

软件内页：

二.软件入门

我们AD19主要的功能是设计PCB板，博主会分几个阶段为你们讲解，我们首先来学习使用Altium Designer软件绘制一个stm32最小系统的电路原理图（其实b站有挺多视频的，但是博主不认为我们真的有耐心去搞这一两个小时去看，所以当你看到这篇博客的时候，那恭喜你，你稳了！！！）

1创建一个stm32f130c8t6的最小系统元件库

首先我们要会AD19
最基本操作： ctrl+鼠标滚轮：放大缩小
鼠标点住元件+space：旋转

这里博主图方便不把每个步骤都用圈圈出来，你看光标的位置，就知道博主的操作了

1.1创建一个stm32f130c8t6芯片元件

1）创建一个工程

这里选择第4个，然后修改我们工程的名字，选择一个你自己建的文件夹放好，就ok

2）新建一个PCB库和SCH库

点击刚才你建的那个工程，然后看到弹出来的菜单，分别新建两个库

这是博主加好的库

3）接着我们来画stm32f103c8t6的PCB的封装

我们可以双击我们的PCB库，打开

选择菜单栏，工具

next

注意看鼠标位置，选择好类型后Next

这个页面我们要填STM32c8t6的参数
我们只要填两页，这是第一页

百度xxx（如stm32c8t6）封装，即可找到相应的封装参数

我们把对应的参数填好
我们只要填两页，这是第二页。填完整之后finnishi

这是完成后的PCB图

然后画该PCB封装对应的SCH封装，首先切换到工程页面

4）接着我们来画stm32f103c8t6的SCH，

SCH主要是画出我们的芯片的引脚图

双击SCH库，我们就可以进入到我们的SCH，SCH主要是画出我们的芯片的引脚图，我们可以在顶上的菜单栏选择放置，然后里面有我们需要的工具

接下来我们就是画芯片的SCH图，可以上百度搜，但是这里为了方便大家学习，已经给出比较完整的参考

接下来就是一些参考操作
加矩形

加管脚，我们加管脚的时候注意，我们可以按空格翻转90度，然后正确的如图所示，我们还要根据我上面那个图，修改管脚的序号还有名字

弄完了之后，效果如图

5）我们开始生成元件库里的元件

浏览找到我们的PCB文件，让SCH和PCB结合，然后确认


我们可以在SCH库里看到我们的器件，然后我们可以双击修改你想要的文件名

返回project页面，双击工程，然后会有菜单，点击第一个

，这样子，你的元件库里就有了stm32f103c8t6芯片

1.2创建芯片库里其他元件（自己画PCB封装）

首先来看一下我们的最小系统原理图吧，我们发现除了我们的芯片还有其他很多东西

我们以扩展接口为例，我们在PCB库编辑页面右键，新建空白元件

然后选择点击放置走线，按Tab选择当前层为TOP Overlay（丝印层

然后按照下面那个图画，圆圈那个是焊盘，=注意它的标号，还有大小，其实和刚开始32行骗差不多但是现在是我们手工画，而已，我们元件的参数可以在淘宝上早，然后PCB图的话，百度一下就有

我们画好后要保存！！！！

再画对应的SCH元件,在此页面添加

接下来的操作和创建32芯片一样

2.创建一个stm32f130c8t6的最小系统原理图

1）创建原理图工程

我们就可以找到我们的库，还有官方有两个库，你的也可以在里面找

接下来你就可以按照博主的原理图画出来

2） 画原理图

这是博主的苦逼过程

注意画的过程中你可能会遇到有红色的波浪线，先别管他，到最后按t

如果还有你再建一个，原理图工程，然后把这些图全部复制粘贴过去，然后马上按我刚才那个方法，就ok啦

三.总结

      博主这次介绍了AD19的入门方法，AD19对于我们这些有一定的难度，然后我这里用stm32c8t6为例，给大家比较详细介绍了，关于画原理图的方法，其实博主也是在学习的过程，所以我还是说的有些浅显，如果有不对的地方可以指正，另外如果有学习上的问题要讨论，请您关注我个人的微信公众号，微信搜索h生活剪影很期待您的关注，我们一起进步。