It can be said that China is a national country that follows the trend. The embedded learning is the same. In recent years, it has become more hot, and all local embedded training courses are in the rain, the embedded learning growth is a long-term, hardware software The process of eating, it is necessary to accumulate, from simple play to complex, from complex back to simple, a return to the true cycle, then you can't help but find that you are in the ranks of embedded masters.
Temporarily class into a "embedded system" with a higher complexity. I believe that many netizens have enjoyed the BBBLACK's exclusive journey, as the first "people who eat crabs", bearen much Sour and bitter and spicy, nothing to tell, happy joy, no one, love board network will strive to provide a tone, shared platform, long-term uninterrupted offer, information, information, here will be the choice of bbbbblack, Looking forward to you join!
The author has made detailed operations and introduces for BBBLACK, at least I believe that most of the netizens should know how to enter the system and update the system. If you don't know, go back to the board computer BeagleBone-Black first. It's not clear after reading it, okay, please take a brick behind me :)! Familiar with the process of operating a plate is simple. To understand the working principle of the board, it is more complicated. This is a process of long-term learning accumulation. The pavilion network is slowly upgraded, first accumulating the experience from Bbblack!
BBBLACK system block diagram
I don't think that it is more concise than this system frame to let everyone know how Bbblack is, what is the function. The entire 6-layer board is the most complex and most expensive demand for Texas Instruments, which is a circuit from which the radial from it is composed of various functional modules. From the system frame map, we can see the main features HDMI, Emmc Flash, DDR3 SDRAM, MicroSD, JTAG, USB Host, USB Min, Ethernet, and common peripheral interfaces, in addition to price advantage compared to the previous generation of BeagleBone Several significant features of the outside:
MPU closing to 1GHz
Memory increases to 512MB, add 2GB of EMMC Flash
Added a more attractive HDMI function.
I believe that everyone is equally interested in these new features, then we mainly surround these aspects to learn BBBLACK.
MPU - XAM3359AZCZ100
AM3359 hardware frame
Industrial-grade AM3359 is the main chip of Texas Instruments, based on the ARM Cortex-A8 core, enhanced in terms of image, graphic processing, peripheral, and industrial interface options such as EtherCAT and PROFIBUS. Compared with BeagleBone's AM3358, the clock is increased to 1GHz. The performance has soared around 40%. It is simply like a drug. It is expected that the AM3359 will be "exploit the waves" after the good achievements of BeagleBone-Black. With the title of its industrial grade MPU, you can earn a lot of developers, the so-called industrial level, we can use the simplest example to understand it, such as the wrenches in the home, may be used by our daily use, use I will not be damaged in my life. If you put it in a large industrial repair factory, thousands of usage, half-day, it is estimated that industrial grade products are born with these scenes, after thousands of hammers . It is conceivable that AM3359 can be competent in various harsh environments, relatively applicable places, small to children play game consoles, smart electronic electric meters, large to home automation, industrial automation equipment, and current popular Complex intelligent robots can be implemented via AM3359.
RAM - MT41K256M16HA-125: E
We already know that BBBLACK is increased from 256MB to 512MB than the BeagleBone memory, which is different from the increase in capacity.
BBBLACK:
MT41K256M16HA-125: E
DDR3L 512MB
Working voltage is 1.35V (1.283-1.45V)
1.25ns @ CL = 11 (DDR3-1600)
Beaglebone:
MT47H128M16RT-25E: C
DDR2 256MB
The operating voltage is 1.8V ± 0.1V, VDDQ = 1.8V ± 0.1V
2.5ns @ CL = 5 (DDR2-800)
BBBLACKC uses more advanced DDR3 memory, and half of the performance is attributed to its more advanced process process. Compared with DDR2, the operating voltage is lower, but it can be reduced to 1.35V, but its frequency is in the original foundation Double, that is, BBBLACK reduces power consumption while enhancing memory performance, which has a pivotable role in improving the performance of the entire board.
EMMC - MTFC2GMVEA-0M WT
EMMC can be said to be the most red mobile device local storage solution, BbbBlack can not be spared, using beautiful MTFC2GMVEA-0M WT, why can EMMC become a trend?
Let's first understand the principle of EMMC.
EMMC encapsulates with MMC (multimedia card) interface, flash memory device, and main controller in a small BGA. Just lead some necessary signal lines, such as design in bbblack
Can you imagine? Design is so simple. The concept of EMMC not only simplifies the use of memory in mobile phone, but also shortens the product from design to marketization, I believe that EMMC will be a new trend of mobile storage.
HDMI
In the board computer BeagleBone-Black, we learned about the basic operation of HDMI, but for its principle, I believe that the HDMI function of BBBLACK is mainly through the HDMI transmitter TDA19988BHN of NXP's low power consumption. It converts the RBG signal to HDMI signals, supports HDMI1.4A standards, and is compatible with DVI 1.0 standard. Speaking of NXP, everyone may be more familiar, or more familiar with NXP, believe in the careful netizens have seen chips marked with NXP logs on many electronic devices, which is a semiconductor company founded by Philips, Products covers large and small electronic products, have automotive electronics, intelligent identification, wireless infrastructure, lighting, industrial, mobile, consumption and calculation, etc., interested users can also go to see the love board recently being launched. Pu's JN516X provides a online research conference for the Wireless Internet of Things, and there is still a chance to pay.
BBBLACK implements HDMI output schematic
The audio signal can also be transferred to an HDMI signal by TDA19988BHN, thereby achieving synchronous video audio output.
TDA19988BHN internal principles
This is a specific work block diagram of HDMI output, a bit unfortunately the resolution size of TDA19988BHN is
1280 x 1024
1440 x 900
1024 x 768
1280 x 720
Current HD 1080P is not supported. In addition, TDA19988BHN supports HDCP like TDA19988AHN. HDCP is a high-bandwidth digital content protection technology that protects video content will not be illegally recorded. With the coming of HD era, it is increasingly focused on copyright issues, HDCP has become an inevitable technology.
BBBLACK power management
To learn about BBBLACK's power management system, you must clear the entire power supply process of BBBLACK.
BBBLACK's power management IC TPS65217C is a integrated power management chip that includes three buck converters, 4 LDOs, and the MPU allocates power through I2C control through I2C control. The TPS65217C can power via a USB line or a DC adapter, but the USB power carrier current is only supported by 500mA. If the BBBLACK expansion board is used, more loads are involved, it is necessary to power with DC adapter to ensure normal operating voltage.
The USB cable power supply and DC adapter power supply power consumption is compared when configured as the following environment.
HDMI MONITOR Connected
USB HUB
4GB thumbdrive
Ethernet connection @ 100m
Serial Debug Cable Connected
When we see the load on the carrier board, the USB power supply is sufficient, and the USB power supply is basically the same, and when the USB and DC power supply are stored, the TPS65217C will automatically switch to DC power supply.
Careful netizens may find such a problem, the TP5-TP8 four test points next to the DC seat is dry?
It is not exaggerated, this is your DIY mobile BBBLACK is the fastest way
With the PIN definition, you can see the role of these four test points, we can use these four points to connect to the battery to create a mobile BBBLACK.
Summarize
This article mainly introduces some of the more distinctive hardware situations, compared with BeagleBone, the hardware of BBBLACK does have greatly improved, and in the case of improving the configuration, it greatly reduces prices, this has to be said to be a bold marketing. , In order to popularize BBBLACK to start a strong and powerful shot. I believe that the careful netizens will find that in this article, there is no emphasis on the Chinese version of BBBLACK or the US version of BBBLACK, in fact, the author wants to tell you, the Chinese version and the US version are the same hardware software, to say the difference, only Logo on the board is different, and the area offline is different, but there is nothing different for our users.
Here is a list of BBBLACK vendors authorized by the beagleboard.org community
I believe that everyone will not have a doubts on the release, and friends who play BBBLACK should believe in their eyes, believe in their judgment, don't be clouds, the rumors should be in the wise. Finally, I hope everyone has a good attitude, this is no matter what you live in your life or work, and you will also welcome you to join the panel network forum to explore the information of sharing BBBLACK.
Reference
Purchase link
Beagleboard community
BeagleBone Chinese Forum
Single board computer beaglebone-black starters
China Board BeagleBone-Black MicroSD Card Start System
Original declaration: This article is originally created by the panel network, declined!
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