Known as the world's lowest power Bluetooth single chip DA14580 in the wearable market, health care, ibeacon positioning and other markets have been widely used, but because of its more closed technology/data support led to a high level of technical barriers developers, the network also rarely see the development of DA14580 technology sharing, Therefore, the general enterprise and the general technical team are not daring to adopt the platform, but on
I. Single-chip microcomputer three major resources 1.flash--program storage space
Equivalent to the computer's hard disk, you can achieve power loss after the data is not lost.
2.ram--Data storage space
Equivalent to the memory of the computer, used to store the data generated and required during the operation of the program, data loss after power outage, the advantage is fast reading speed, can be written indefinitely.
3.s
Connection: http://homezzy.blog.hexun.com/29601793_d.htmltoday solved a small problem (check the book before you get the exact conclusion ...) ) with 51 single-chip microcomputer+ One. 0592 Crystal Oscillator, how to generate 115200 baud rate? Originally felt this meaning, direct initialization timer 1, the program is as follows:voidInit_com (void) {SCON=0x50;//serial port operating mode 1, 8-bit UART, baud rate variableTmod |=0x20;//Timer 1, working
FPGA chip Internal Hardware introductionFPGA (Filed programmable gate Device): Field programmable logic device???? FPGA based on the structure of the lookup table plus trigger, using the SRAM process, but also using flash or anti-fuse technology, the main application of high-speed, high-density digital circuit design.???? FPGA consists of programmable input/output unit, basic programmable logic unit, embedded block RAM, Rich cabling resources (clock/l
Serial communication of 51 single-chip microcomputer (III.)has been read 47 times 2015-12-29 00:21 | Personal Category: 51 single-chip microcomputer | single chip microcomputer, communication Use the serial port to send and receive simultaneously operation: The computer displays the result source program:/*Project name: Serial send and receive experimentProjec
The central bank issued a magnetic stripe card will be fully replaced by chip card, AgBank's bank card to change chip card to ask for money? How do you change it? Using ABC bank card friends, we will see the following ABC's magnetic stripe card to change the cost of chip card.
ABC Exchange card cost is 40 yuan, the first IC card is free before the end of
Tags: man EPO direct Linu network card open source Basics boot self-starting forObjective:An embedded device that resembles a Raspberry Pi AARCH-64 architecture can be connected to Ethernet via a USB wireless card;The device has a LAN interface, but in the previous system firmware upgrade, its internal three network interfaces can ping each other, but either interface cannot ping the external network interface, the problem is not resolved;In addition, the lab also involves connecting to the exte
9100; Monitor: Philips 107p;p4-2g
Another machine: Operating system: RH9 graphics card: Third party 8500LE (powered by ATI), monitor: Lg-l1510s;athlon 1700+ can also install and normal use 3D function;
First, download the driver, to here
Http://www.schneider-digital.de/html/body_download_ati.html
Select the program download that corresponds to your version of X.
Second, decompression installation
#unzip Glx1_linux_x4.3.zip
inflating:xfree4.3.0_2.9.12/check.sh
inflating:xfree4.3.0_2.9.12
Now there is no line from the product brand and the price of various, how to be in the confusion of the flowers are not blind, in fact, as long as you see the hardware chip behind each product, you can have a general selection basis, information from the network, but summed up together to facilitate their own or users have the time to reference.Wireless Protocol IE802.11 Family:
Protocol
release year/date
Op. Standard band widt
Ⅰ , overviewRegarding the storage of the data, I think the programmer will basically use it, just to see where you store it. STM32 the inside of the chip FLASH can be programmed, which means that data can be stored. However, many do small application development of people do not take advantage of this feature, but instead of a separate EEPROM or FLASH, I think in some cases (small data, Not often changed) this is a huge waste of resources. about usin
Power consumption is a top priority for battery power supply systems. we know that a single-chip microcomputer has a power management register pcon, which has the lowest two. IDL and PD are used to set whether the single-chip microcomputer enters the idle mode and the power-down mode respectively.1. idle modeWhen the single-chip microcomputer enters idle mode, al
[Guidance] researchers found that when running software on a single core, ARM chips are more efficient than Intel core chips and are more suitable for applications in high-performance computing systems.
On August 1, Beijing time, according to foreign media reports, researchers from the Barcelona super computing center published a paper saying that smartphone chips will one day replace x86 chips with higher prices and higher energy consumption, used in a supercomputer.
In the history of high-pe
Article Title: *. src. rpm package and * .tar.gz, *. rpm package. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.
1. Run rpm-ivh *. src. the rpm command to install it does not inst
RPM Package:
1. How to install the RPM package
RMP software packages can be installed using the program RPM to complete. Execute the following commandRpm-i your-package.rpmWhere your-package.rpm is the file name of the RPM package you want to install, typically placed in the current directory.The following warnings or
Collect collected information from the Internet:
How can I determine whether the crystal oscillator is working properly?
1. There are many judgment methods. It is most direct to view the waveform with an oscilloscope. You can also test the voltage with the voltage file of a digital multimeter. Because the duty cycle of the crystal oscillator waveform is 50%, therefore, the average voltage measured is about 1/2 VCC. For 51 single-chip microcomputer, wh
act as an added comport independent of any existing hardware in the form of PC application software. The comport uses the application software running on the PC to access a cp2101-based device by accessing a standard hardware comport. data transmission between the PC and cp2101 is completed through USB. Therefore, you can transmit data to a cp2101-based device via USB without modifying the existing software and hardware.
1 cp2101 featuresCp2101 is small but powerful. Its main features are as fo
Reprinted please indicate from: http://blog.csdn.net/icyfox_bupt/article/details/6766830
Baidu Encyclopedia: UART: Universal asynchronous transmitter/transmitter, a general asynchronous receiving/sending device. UART is a parallel input into a Serial Output chip, usually integrated on the motherboard, most of which are 16550afn chips.
Lm3s series single-chip microcomputer generally have UART input and outpu
This is a small experiment I did last semester, but I think the control MCU is more direct than the control arm, because some of the arm is better than the MCU encapsulation, so you are not very in-depth.
If you have learned MCU, it will be easier for you to learn arm, but arm is a little more complicated than MCU.
This code was removed from my previous blog, but I used Sina before. Now I think Sina is an entertainment blog, but blog garden, I think it is a real technical blog website. I hope th
We already know that single-chip microcomputer has Rom, ram, and parallel I/O Ports, so what are there in the single-chip microcomputer besides these? How are these fragmented things connected together?
Next let's make a complete analysis of the single-chip microcomputer!
We can see that in 51 single-chip microcomput
Http://hi.baidu.com/mcu8031/blog/item/c95903138671c625dc540171.html
Microcontroller-driven dm9000 Nic chip (detailed debugging process) [bottom]
4. verify each function in initialization.
Next let's take a look at whether the above initialization function is available. We have written three functions as follows:
Dm9000_init (), sendpacket (), and receivepacket () are saved and named dm9000.c. Now that we want to debug, when
However, there must be outp
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