你好，我想为我们的微控制器实验室设计一个PIC16F87A DEV板。受训者在工作板上工作，对于初学者来说，需要花费大量的时间和大量的实验室时间来连接简单和基本的布线；比如MCLR电阻，
电源线，BRID。我希望能节省很多时间给我和受训者，也可以为实验室设计
PCB。我已经在谷歌图像上查看了不同的图片，还有很好的图片。我对BAS有一些疑问。IC和包括在设计中的非常重要的部件。第一件事是什么重要的电容器包括？我在两条电力线上应该有100NF的上限之前就知道了，但是在下面的图片中，我只看到了一条电力线。为什么RS-232电源的4个上限？它们是否平行于输入数据线，如去耦电容器？在下面的图片中，为什么会有不同类型的电容器？还有，黄色的：除了电容器，我还应该考虑哪些因素呢？
以上来自于百度翻译
以下为原文
Hello,
I want to design a PIC16F877A dev board for our microcontrollers' laboratory at the college.
The trainees are working on breadboards, and for beginners that takes a lot of
time and a lot of laboratory's time is spent on wiring the simple and basic wiring; like, MCLR resistor, power lines, bridging power lines, connecting the PICkit 3 wires and connecting the load which is a simple LED.
So, I thought to save a lot of time for me and the trainees and design PCBs for the lab.
I've looked into different pictures on google images, and there are very nice ones.
And I have questions about the basic and the very important components to include in the design.
The first thing is what important capacitors to include?
I learned before the there should be 100nF caps on both power lines, but in the following picture, I see only one for the power lines.
https://images-na.ssl-ima...2BiRpABRSL._SX355_.jpg
Also, why the 4 caps at the RS-232 power? Are they in parallel to the incoming data lines like decoupling capacitors?
In the following picture, why there are different types of capacitors?
Also, the yellow ones here:
What other factors than capacitors I should consider?
举报
