ibeacon chip

PrefaceSee a long time operating system principle, Ucos source also see half, but feel always mengmengdongdong, with sentence popular network language is always on the car, later on the Internet was recommended an article "to build a own operating system", this article is really good, also attached to the source code, But do not know whether I find the article is wrong or what, I based on the article provides the source code, can not compile, and then began to read the code to modify the code fi

First, the serial port download:1.MCUISP serial software One-click Download settings:DTR Low power level, RTS high entry bootload serial download on the ch340 chip corresponds to the DTR and RTS output levels contrary to the level set by the computer software. One-click Download circuit according to the ch340 chip corresponding PIN control signal to complete the corresponding function of the specific implem

A simple function took six hours and made some mistakes in the process. 1. Division. On the MicrocontrollerProgram, Do not use division, replace with displacement. Because I don't know how the compiler handles division. The keil51 compiler processes division with different results.CodeThe compilation results affect the running results. The result of division is an inexplicable error. 2. configuration file. Project configuration is required, depending on the degree of familiarity with t

Intel may strip out its memory and communication chip Division In May 18, chip industry analysts said intel may gradually strip its flash and communications business units in the next few months, and follow the example of its rival amd to cut spending, which is the main reason for the divestiture plan. At the same time, analysts also pointed out that even with the above reform plan, it is difficu

considerations2.4.2 Mii InterfaceW3100A supports two MII types. One is serial Mii, the other is half-bit Mii, but w3150a+ only supports half-bit Mii. Therefore, if you are currently using Serial Mii mode, you will need to adjust your PHY chip to a half-bit type. In addition, the w3150a+ has two independent pins: RXDV and CRS. The user should connect the pin RXDV (no.44) to the pin RXDV (PHY chip end) conne

Introduced Serial port is a single-chip microcomputer and the external exchange of information tools, 8051 single -chip communication methods have two kinds:Parallel communication: Data is sent or received at the same time. Serial communication: Data is sent or received in one order.The way of serial communication Asynchronous communication With a starting bit 0 for the beginning of the

St STM32F1 series MCU decryption chip decoding copySTM32F1 series MCU chip decryption:STM32F100 Decryption |Stm32f101 Decryption |stm32f102 Decryption |stm32f103 Decryption |stm32f105 Decryption | stm32f107 decryptionThe STM32F1 series of basic MCUs meet the needs of various applications in the industrial, medical and consumer markets. With this product line, STMicroelectronics is a leader in the world of a

Ht1621b chip display driver For details about the ht1621b chip, refer to the Data Manual: Baidu Library ht1621b Chinese materials The following is the chip Driver (ipv8 microcontroller ): /* Includes ------------------------------------------------------------------ */# include "stm8s. H "# include" Global. H "/* Private typedef character * // * Private defin

ClickLink to Keil V3 to add the STC series single-chip microcomputer library file method + header file library Add a single-chip microcomputer database, you can chooseSTCSingle-Chip Microcomputer, without affecting the use of the original database. Procedure: 1. Download the STC database for Keil and rename it STC. CDB. Place the files in the folder to the c

The firewall can be divided into software firewall and hardware firewall as well as chip-level firewall if it is divided from the soft and hardware form of firewall. 　The first type: Software firewalls A software firewall runs on a specific computer that requires the support of a client's pre-installed computer operating system, which is generally the gateway to the entire network. Commonly known as "Personal Firewall." Software firewalls, like othe

can make the decryption of software-side code tracking, debugging, listen to the data of the means of failure, to a great extent to ensure the security of the entire software system. First, in the use of smart card encryption and decryption scheme, the PC-side application software key code and data is missing, is securely ported to the smart card hardware protection. When needed, the application software can use the function call engine to instruct the smart card to run the key code and data in

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

Today, we finally received the BDM and xs128 core Boards, which can be used to test the fit of the BMI simulator and build the codewarrior compiling environment. 1. bmdfirst plug in to the computer USB, and install the USB drive USB dm_drivers_1_2_0_winxp_x32.exe (5.41 MB). Success example: There are four drivers, corresponding to different versions of XP and win7: ① Usbdm_drivers_1_2_0_win_x32 corresponds to the 32-bit win7 System ② Usbdm_drivers_1_2_0_win_x64 corresponds to the 64-bit win7 Sy

Recently, p178g is used, and internal registers need to be controlled to implement the switch and VLAN configuration of each Phy. In order to replace the "pseudo" Switch implemented by the original analog switch, you can use the SMI interface to read and write registers through ds to control the IC operation status. Time Series and format The prefix code of this chip is different from the 32-bit high level of many other chips. It can also be impleme

Protocol Stack chip implantation is imperative, IPSec is an error, and ipsec is imperativeThis article is a bit extreme, but may also cater to some people or organizations. This article is short. I will continue to write this topic later. The heart is too painful and the person is too weak.1. Protocol Stack chip ImplantationIf you think that protocol stack chips are consuming materials and eliminating costs