"In just a few years, with the rise of Internet video, the ecology is improved, the traditional TV has gradually changed towards Internet TV, and the family's living room entertainment is more free, extensive. Of course, this does not mean that traditional TV is nothing, except "Stubborn" set-top box is mixed, and the TV box now visible now is a lot of young people to choose traditional TV, and there is still a long life cycle that has not been eliminated, but continue to glow in the second spring. Today's TV box is like a traditional TV in the current video, since it is so big, today's love board is coming, and there is a thing about the TV box.
At present, the mainstream TV box plan in China is also a few mature programs, Morningstock, Morning, etc., and the electronic box is not like mobile phone, update the rapid mobile consumption of iterative cycles. Electronic products, there is a "one box to use the waste", numerous vendors have compromised the performance of the TV box in order to balance the cost of the TV box, only one, there is no one for the TV box with performance paranoid Meet the opportunity. This is not, in order to meet the wishes of this partner, I will recommend a high-end TV box solution to you, and it is also a high-performance open source board computer based on AMLogic S912 high-end 64-bit 8-core -Khadas. Vim2 Basic. (Later we will give 5 sets to netizens in the forum)
Khadas Vim2 Basic Development Board / Card PC
Khadas Vim2 board designer from Shenzhen World Technology, Khadas is an open source brand launched by this company, dedicated to the cultivation and cultivation of the global gainstake market, with its own high-performance micro-single computer, open source code For the hardware and software platform, high-quality technical documentation and software services, while building, English communities provide global players to provide communication and communication platforms, aiming to hatch the gods' whims and help them to achieve personal dreams! Have to say, feel full!
The Vim2 board is very small, which can be seen from the outer box.
The design of the front logo is very technological. There is a model of this board under the box: Vim2 Basic, there is no special explanation after the article is simply referred to as VIM2. In addition, in addition to the VIM2 development board of its own, the pavilion has also got the peripheral accessories provided by Khadas, which can be perfectly matched with VIM2 daily.
A 5V / 2A output adapter.
Khadas specializes in USB-TYPE-C lines.
Khadas remote control for infrared control.
Although VIM2 is presented in front of everyone, it is believed that Shiye Technology has considered the expansion of TV BOX form at the beginning, so it has developed the above accessories, but not only such Khadas also provides HDMI cable, acrylic shell, DIY shell, cooling fan and other parts, in short, can be used very well, to the hand can be used.
Also disclosed a heavy message, Khadas will also launch a cool DIY box (the photo is as follows, which is more cool than the box in the market, and it is more like VIM2 or one can be used to develop Open source card computer, can learn while entertainment, can be used for entertainment while learning, and you can get it.
Khadas Vim2 Basic Development Board Hardware
The first time I saw the board, it was really delicate, much smaller than the traditional electronic box we saw, and the entire board is almost the same size as the ID card.
The interface on the front of the VIM2 board is as follows.
To see the case of the board, two USB HOST interface, one HDMI (support HDMI 2.0A standard), a Gigabit Ethernet interface, a USB-TYPE-C interface (right, no mistake, is Type- C interface, this is not too common on the development board, here for power / burning), exquisite compact board also means a compact, the USB-TYPE-C interface is discovered in the actual experience, and the HDMI interface is a bit close. If the exterior of your HDMI line interface is a bit conflict, you need to pay attention to when you choose HDMI.
The Gigabit Ethernet port circuit is achieved by the Isolated Transformer RTL8211F PHY + GST5009M isolation transformer.
3 mechanical buttons (reset, power, users).
An infrared transceiver and 40PIN extended interface include (I2C, I2S, UART, PWM, ADC, USB, SPDIF), and another FPC interface next to the infrared transceiver, see the schematic is an I2C interface and several GPIO ports, If I2C is used, you need to add pull resistors. If you are personal DIY, you may not be too convenient, but on such a delicate board, many users are directly developed, such as the external OLED display, It is directly based on the VIM2 board operating, using the FPC interface, which is reliable and beautiful, and does not need to be implemented by a messy jumper like a needle pin, which does not meet the product definition.
Two WiFi antennas, two external extensions support RTC and fan function.
The WiFi module is the positive base of AP6356S, dual-band WiFi, support 2.4GHz and 5GHz band, which is currently not available on the market. At the same time, AP5356S also supports BT4.1, that is, the AP6356S equipped with VIM2 merchants is a Bluetooth + WiFi module, which is a good news for engineers who want DIY Bluetooth control boxes. Two antennas are 2.4G, 5G dual frequency, the difference is:
1) Different gain: large antenna is 2DBI, small antenna is 1.5dbi
2) Big antenna is Bluetooth, Wi-Fi shared antenna, small antenna only for Wi-Fi
Core video processing SOC AMLOGIC S912 + 16GB EMMC + 2 GB DDR4 RAM (512MB * 4
,)
AMLOGIC S912 is the latest high-end DVB / OTT / IP TV box solution. Many boxes are currently used in the market. Compared to S905X, AMLogic S912 is upgraded to 8-core processors, GPUs are also from Mali- 450 upgraded to Mali-T820MP3, and the performance improvement is still very significant.
The AMLOGIC S912 uses 28 nm HKMG process, and the internal integration of SOC is quite rich, eight-core 64-bit ARM Cortex-A53 processor, ARM MALI-T820MP3 GPU, support ultra HD 4K 60FPS hardware decoding, support H.265 / VP9 10 bits, H .264 and AVS + and many other formats, specific peripheral resources can refer to the following hardware system block diagram
The back resource of the VIM2 development board is shown below.
One of them is more special. There is also a MCU on the back of the Vim2 board. The model number is the STM8 series microcontroller (with EEPROM), mainly for system power management, including implementation of timing switch, infrared shutdown, WOL remote shutdown Open the function, and other functions such as hardware encryption can be implemented.
WOL is a major feature of Vim2, WOL (Wake On LAN), network wake-up feature, users can directly boot / restart / shutdown by sending network commands, and the author only saw on the peanut shell. But in the current market, the board is calculated is really rare.
Throughout the VIM2 whole board, it is very great to integrate such a rich function on such a small motherboard. Whether it is a circuit design or a PCB layout is very reasonable, even if the VIM2 development board is used as a TV box, it is not violated. Sense, the extension interface of the board card is more free to develop debug or DIY. In addition to the VIM2 Basic, the author's hand, the official also provides a higher configuration VIM2 PRO, Vim2 Max (refer to the table below).
(Click on the picture to enlarge)
VIM2 PRO and VIM2 MAX not only have higher storage and EMMC storage, but also equipped with higher specifications support RSDB WiFi & Bluetooth module AP6359S. The main difference between AP6359SA and AP6356S is to support RSDB, ie synchronous dual-frequency transmission, and two frequency bands can be used for receiving, one for sending. The actual application is: A band is used to connect the router, and a band is used to produce an AP hotspot, which is equivalent to a Wi-Fi repeater.
In addition, the above table also shows that there is another Vim2 Lite development board program, but only for ODM / OEM vendors.
Vim2 Basic development board power-on
VIM2 board can be powered via USB Type-C interface or external power interface, not too common on the board, if there is only a microSB line, if there is a microousb line, it is recommended to find a USB microusb turn USB TYPE-C transfer . However, the official does not recommend this. The reason is that many MicroSB lines are not compliant, the lines are very large, and when the high load is powered, the plate cannot work because of the pressure drop, Khadas offers special USB-TYPE-C data for VIM2. Line, recommended.
The onboard EMMC factory has burned the Android system, which will be used to connect the necessary displays or keyboards. If you use the remote control, you don't need to take the mouse keyboard.
Several programs are installed by default.
There is no wired Ethernet interface using a plate, and it can be seen directly that VIM2 is supported by 5GHz band.
It has been free to download some test software on the market.
It can be seen that the system is Android 7.12 or a new system.
Geekbench's processor running points is as follows.
The GPU runs, as follows, relatively, the GPU of AMLogic S912 is still very strong.
Run in the hares rabbit.
In addition, the connecting handle played with the glory of the online game king of the comparative fire, and it was still very smooth.
VIM2 development board Ubuntu system test
Khadas officially provides a lot of ready-made system mirroring for users, such as libreeelec, ubuntu, dualos, etc., there is also a three-system combined firmware, download address: (Android + LibReelec + Linux)
Here, the author also tried the Ubuntu system, which would be convenient to see the system's burning. It may be that the officially released image is in the abroad, and the speed is slower when downloading the mirror, not very convenient. However, Khadas officially said that domestic mirroring servers are building, and look forward to getting online as soon as possible.
There are two ways to burn, you can choose to burn directly through USB Type-C (Download), or burn it through the microSD card (Burning tool download), relatively USB TYPE-C is more convenient, It is not necessary to use the MicroSD card, but the author is trying to burn the microSD card.
Burning the files in the MicroSD card, found more start boots.
When you burn the VIM2 development board, you can enter the Update mode (press and hold the power button after power-on, then press the reset button, wait 2 ~ 3 seconds to loosen the power button), the system's burns are almost about ten minutes. time.
Ubuntu system boot screen, login password same login name: Khadas
Direct access to the 5GHz band, whether it is web video videos.
In addition, Vim cooperates with 64-bit Ubuntu systems. When running test Sysbench, the performance reflected in the Test Sysbench is far more than the Raspberry. Of course, the Raspberry Piva has not given it to it. 64-bit systems is also a regret. Although this contrast is some unfair, this is also an ecological competition.
summary
This article introduces the AMLOGIC S912 launched a Menlogic S912 high-end 64-bit 8-core open source board computer Khadas Vim2 Basic, which can also be used as a ready-made high-end DVB / OTT / IP TV box solution, strong configuration plus A variety of systems supported, allowing VIM2 stand out in the mainstream TV box program. Throw away for extensive development, relying on its own powerful configuration, compared to the most popular open source hardware board Berrine, Vim2 experience is really better than.
In addition, as a high-performance board computer facing open source field, Vim2 also has its own Chinese forum support. It will also launch some new products in the middle of the line in the near future, and may also launch some new products. If you are interested, users don't put Pay more attention. VIM2 can be used as applications in different fields according to user needs, such as wireless servers, robots, Internet of Things, smart home, etc., can be said to be very flexible, if you are interested in VIM2 boards or these applications, you may wish to pay more attention to The forum will open the gift sharing activities of the board. "
Our other product:
