HelperA64 core board design version 2

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HelperA64 core board design version 2 [Copy link]

I wanted to finish posting these articles during the Spring Festival, but I was tempted by all kinds of things when I was at home. After posting two articles, I lost interest in posting again. Now I will make up for it. There are 4 versions of the helpera64 core board in total. You have to look at them one by one to see the significance of the changes and improvements. Because the interface definitions of the second version and the first version are quite different, all interfaces have been redefined. The main design idea is to make the bottom board easier to route. 1. The LCD screen RGB interface is mainly designed according to the interface line sequence of the currently popular 7-inch screen (AT070TN92), that is, the interface is compatible with LCD screens with RGB interfaces of many sizes. 2. Others such as SD card, HDMI, MIPI, USB, CSI, etc. must meet the line sequence requirements of popular peripherals. 3. The power supply should be connected at a single point, and the ground should be evenly distributed as shown in the following figure (click to see, otherwise the picture is too small to see): To be continued

fsyicheng

Come on, then how do you plan to use this board?

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fsyicheng posted on 2018-2-25 16:03 Come on, and then how are you going to use this board?

This is a quad-core 64-bit core board with a main frequency of 1.15G. It has powerful performance and high cost performance. It can be applied in many fields, such as industrial control, medical treatment, and the Internet of Things. The projects currently in use include bus stop advertising announcement system, remote meter reading system, face recognition attendance machine, parking lot self-service payment terminal, etc.

DavidZH

The boss did a great job

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DavidZH posted on 2018-2-25 18:37 The boss did a great job

Thank you for the encouragement!

star_66666

What good stuff