ibeacon chip

assigned to this name. (See Reg52.h header file) SFr Declaration of a special function register, declaring a 8-bit register Sfr16 Data declaration for 16-bit special function registers Sbit A special function bit declaration, that is, declaring one of the special function registers Bit Bits declare variables that can be used when a bit variable is defined 3. Why light-emitting diodes are connected to 1kω

In the actual application, when we get a UHF label, often want to know the capacity of its various storage area is how much, especially programmers do the program, it must know what the chip, some characteristics, in order to do a better service for the program, not blind, Otherwise, the development of the program may cause a variety of unforeseen problems. So how do we know what the label is in the hands of the brand, what

the arm-basedcortex-m3the kernel's STM32 series processor may be able to help you solve this problem. You don't have to make tradeoffs and tradeoffs between performance, cost, power, and more. even if you haven't finished reading STM32 's product manuals yet, for a "newborn" that blends arm and St technology, I believe you and I will not worry about the performance of this 32-bit processor for 16-bit MCU applications, but in terms of engineering, in addition to the performance and cost of the

First, the characteristic parameter1, 16-bit non-distorted ad converter 2, Gain adjustable, can be switched in 1,2,32,128. 3, digital and analog to separate, can reduce noise. 4, with a large output current, has a better carrying capacity. Second, the pin arrangement Three, pin function Pin Name Function SCLK Serial clock, Schmitt logic input. Add an external serial clock to this input port to access the AD7715 serial data. Control clocks when transmittin

Abstract: fieldbus has become the most active hotspot in the field of data bus, and CAN bus is recognized as one of the most promising Fieldbus, the Design and debugging of CAN bus nodes are the focus of the design of CAN bus communication systems. This paper introduces the CAN controller integrated into the single-chip microcomputer of, designs a CAN communication node based on the single-chip microcompute

Quad-core network set-top box chip Situation Analysis (Open Market): rk3128 will become the mainstream of quad-core, set-top box rk3128 Open Market: it does not include the closed-loop ecosystem of Xiaomi, Leeco, and other major brands. This year, the quad-core network player is dominated by a31s. Infinic is ahead of all white brand companies with an absolute advantage. However, with the passage of time, quanzhi's a31s is not suitable for the mainst

Cob (chip on board) is already a mature technology in e-commerce, but the average team lead is not familiar with its programming, maybe it is because it uses some wire bond's physical electrical circuit (IC) Sealing technology, as a result, many finished products or foundry engineers of industrial electronic circuit boards are eager to find related technical personnel. In the past, most cob products were only used in some low-cost consumer products.

Basic usage method of HC-06 Slave Module I. How to connect Bluetooth and Single Chip Microcomputer , Gnd and VCC are grounded and powered Rxd and txd are connected to the MCU rxd and txd respectively. Rxd: receive data receive (RX) data Txd: send data transmit (TX) data Where are the single chip microcomputer rxd and txd? Open the schematic diagram of the Microcontroller P3.0 and p3.1 are the rxd

What is a U disk's main control chip? use a U disk to mass production are aware that the first step is to test the U disk's main control chip is what, and then according to the corresponding tool for mass production. Summed up, the user used most of the main control chip is a group of Phison and Skymedi Tai. Now let's take a look at their pros and cons. Group Ph

Single chip multiprocessor (Chip multiprocessors, referred to as CMP), also refers to multiple cores. CMP is proposed by Stanford University, the idea is to integrate the SMP (symmetric multiprocessor) in the large-scale parallel processor into the same chip, each processor executes different processes in parallel. Compared with CMP, the flexibility of SMT proces

Reprint Address: http://m.blog.csdn.net/blog/u010489766/9229011Title Link: http://poj.org/problem?id=1276Test instructions: There are a total of n denominations of coins in the machine, each NI Zhang, to ask the machine to spit less than or equal to the maximum value of the required coins to resolve 1: The problem of Daniel have used multiple backpacks, but I have a classmate to come up with a particularly simple and effective method for this problem. (I think it's not necessary to use the backp

card in the virtual machine VirtualBox is a wired network card (because it is mounted via a network cable)2. Set the IP address# setenv ServerIP 192.168.64.13# setenv IPAddr 192.168.64.11# setenv Gatewayip 192.168.64.1# saveenvNote: ServerIP is the IP of Ubuntu in Windows VirtualBoxTest 4 (Mount the root file system in Ubuntu):# setenv Bootargs root=/dev/nfs nfsroot=192.168.64.13:/mini_rootfs ip=192.168.64.11:192.168.64.1::255.255.255.0:: Eth0:off INIT=/LINUXRCconsole=ttysac0,115200# saveenvRes

This article mainly introduces the use of UART and PC communication to achieve msp430g2553 single chip ultrasonic Ranging example, need friends can refer to the next It is suitable for msp430g2553 MCU to use the HC-SR04 ultrasonic ranging module and communicates with PC using UART. The code is as follows: #include The last time a long current_time;//was measured /*mypro*/ #define LED_1 BIT0 #define SW_2 BIT3 #define Ta1_1 BIT2//ta0.1 hc-sr04 E

3. Interrupt Controller Driver In the Linux kernel, individual device drivers can simply invoke Request_irq (), ENABLE_IRQ (), DISABLE_IRQ (), local_irq_disable (), local_irq_enable () such as General API complete interrupt application, enable, prohibit and so on function. When porting Linux to a new SOC, the chip vendor needs to provide low-level support for that part of the API. The implementation of Local_irq_disable (), Local_irq_enable () is in

"Thinking": Need to use handwriting. As at a glance."AC Code":#include Blue Bridge Cup basic 23 chip test (base, statistic, array)

Contact SCM has a few years of time, has been focused on how to write some applications on a single chip microcomputer, how to start the knowledge of little, ashamed ashamed ... Today, I have to tidy up a bit, deepen the understanding of the SCM, such as why the definition of the data area of the variable restart the initial value of 0. When the MCU is powered on, it will execute startup. The instructions for the A51 file, I analyzed the instructions

51 single chip microcomputer precise delay procedure (crystal oscillator 12MHz, a machine cycle 1us.)Several precise delay procedures: in the calculation of accurate delay, the most easily overlooked is the calculation of the loop outside the part of the delay,This part does not affect the program in situations where the time requirement is not high. A. 500MS Delay subroutine program:. (Crystal oscillator 12MHz, a machine cycle of 1us.)void delay500ms

are parity bits (1/0). The sum of the number of 1 in the data and the number of the test bit 1 should be odd at parity, and the number of 1 in the data and the number of checksum digits 1 should be even when parity. When a character is received, the number of 1 is validated, and if the character is inconsistent, an error occurs during the transfer of the data. Code and checksum The sender sums the data blocks (or each byte xor), resulting in a byte of the checksum character (checksum) appended

Development platform: TI DM365 Multimedia processor, TVP5150 video decoder chip Development requirements: The use of TVP5150 decoding PAL video, yuv4:2:2 format output, and then to DM365 VPFE front-end processing to zoom in to 720p resolution, and then output from the VPBE back to the LCD TVP5150 configuration: (i²c configuration) The configuration code for the YUV 4:2:2 8bit output is given below: Tv_decoder_write (0x00, 0x01); Tv_decoder_

51 single-chip microcomputer is capable of output PWM, the trouble of comparison. In this case, an internal timer is needed to implement it, which can be implemented with two timers or with a timer. The method of using two timers is to control the frequency with the timer T0, and the timer T1 to control the duty ratio. The general programming idea is this: T0 timer interrupt let a I0 port output high level, in this timer T0 interrupt in the start Time