mcu 8051

Cypress USB Peripheral Controller cy7c68013a is widely used in USB printers, mobile phones, storage devices, USB testing and other areas of the classic products. The product complies with the USB2.0 protocol specification, supports full speed and high speeds two velocity modes, and is equipped with 8051 MCU, with Io,iic,uart, timer and other functions. Since the chip is the only chip on the market that supp

1. Single chip microcomputer chip model: STC 89C51RC 40c-pdip 0707STC--STC Company, other prefixes include at, Winbond, etc.8--based on 8051 core chip9--indicates that the internal flash E2prom memory is includedc--indicates that the device is a CMOS product5--fixed unchangedThe 4kb,2 represents the internal storage space of the chip, and the 1 is 8kb,3 to 12KBRC--STC single-chip internal RAM (random read-write memory) is 512B, and rd+ indicates that

main content includes MCS51/96 series and x86 series, BIOS network resources, a simple introduction to real-time operating systems, and introduction to Real-time Operating Systems jointly developed by some developers Forum on embedded systems and devices Less content 51 Single Chip Microcomputer world The content of the website is the same as the description of the website name. Imcu-network microcontroller On A

bookOriginal name: Structure and interpretation of computer ProgramsTranslator: Qiu ZongyanPublication year: 2004-2 C Language Reference manual Author: (US) Samuel p. Harbison iii/guy L. Steele Jr.Publishing house: Mechanical Industry PressOriginal name: C:a Reference ManualTranslator: Xu Bo Download Address: http://download.csdn.net/detail/wuhenyouyuyouyu/9730550 Note: Desk essential reference. The single-chip AVR MCU Author: Wang Zhuoran/Hudgen/Jia

been used for the oscilloscope, no error. As we are currently working on the arm9-system, we have already lowered these questions. If you have any research on it, please tell your younger brother to solve this problem, you can use it as a USB programmer! This line is directly inserted into the physical serial port and is still available.4. after making such a simple programmer, you can start to learn the AVR or 8051 microcontroller. After you are fam

bus width is 32 bit, and its maximum transmission rate is Mbps, FIFO can be used as a data buffer between two different clock domains. In addition, FIFO can be used for data interfaces of different widths, such as single-chip microcomputer bit 8-bit data output, while DSP may be a 16-bit data input, when the single-chip microcomputer is connected to the DSP, the FIFO can be used for data matching. 3. Some important parameters of FIFOWidth of the FIFO: the width ofWidth, which is only the data b

Sophomore completed 8051 MCU buttons last semesterProgramAt that time, the project required a key to control the display of the LED screen and receive data from GPRS. At that time, in order to save costs, I went to the Western Electronics market to buy 8x8 led blocks, and then merged them into 1.1x16 at 128 points. Although it can be run after completion, it is barely enough. In particular, the key scanning

can be used to display a character, each bit has a point spacing between the interval, there is a gap between each line, play the role of character spacing and line spacing.3. Temperature setting Module:The tactile switch is an electronic switch that, when used, can be switched on by gently pressing the switch button, and when the hand is loosened, the switch is disconnected. Use 3 switches, respectively, function conversion, set +, set-, to complete all the set operation.4. Temperature control

Concept and role It is unclear here that the basic architecture of GPIO in the actual computer, after all, is in the software level, to develop, so the hardware is ignorant. Especially in the kernel compilation process, there is a compilation problem, do not know how the kernel developers to solve the problem. The current problem is whether the server requires a GPIO module.In the actual MCU, Gpio is available in many forms. For example, some dat

talents are needed in the enterprise, what are the difficulties in the cultivation of embedded talents, and are there any effective ways to deal with them?Industry voiceEmbedded Systems Fraternity Secretary General He XiaoqingAt present, the difficulty of embedded teaching is that the embedded technology, which is represented by MCU and embedded processor, is developing rapidly, and the teachers, courseware and experiment environment are difficult to

Proteus 8.3 SP1 1CD EDA Tools softwareProteus software has the function of other EDA tools software (example: Multisim). These features are:1. Schematic layout2. PCB Automatic or manual cabling3. Spice circuit emulationA revolutionary feature1. Interactive circuit emulationUsers can even use real-time applications such as Ram,rom, keyboards, motors, Led,lcd,ad/da, some SPI devices, and some IIC devices.It not only has the emulation function of other EDA tools software, but also can simulate

Drivers for all of the Ferroelectric series of I²c Fram are applicable, only the capacity, level (3V and 5V) different, the driver is for 51MCU, but for the other MCU as long as a slight modification can be used. When the amount of storage data is small, and the frequency of read and write frequently, you can choose the I²c FRAM. This CODE is designed to demonstrate how the fm24c04/fm24c04a SERIAL FRAM COULDBe interfaced to the

The driver is suitable for all Ferroelectric series I2C Fram, only the capacity, level (3V and 5V), the driver is for 51MCU, but only slightly modified for other MCU can be used. When the amount of storage data is small and the frequency of reading and writing is frequent, I2C FRAM can be selected. This CODE is designed to demonstrate how the fm24c04/fm24c04a serial FRAM couldBe interfaced to the 8051 micro

First of all to be clear, whether the circuit is high or low "resistance" state, are relative to a reference point, it is clear that the I/O port of the working state is simple to understand. A picture from the previous Atmel 8051 hardware manual. As can be seen clearly in the figure above, the P0 port without a "pull-up resistor" is implemented by a pair of push-pull FETs compared to the P1 port of the "pull-up resistor" (internal pull-up

-duplex serial pass • External data memory address space for 64KB external program memory addressing space of 64kB • Logic operation bit addressing function • Dual in-line 40PinDIP package • Single power supply CPU: consists of operation and control logic, and includes interrupt system and some external special function registers; RAM: used to store data that can be read and written, such as the intermediate result of the operation, the end result, and the desired Data displayed; ROM: Used to s

domains can be used as a data buffer FIFO. In addition, for different widths of the data interface can also be used FIFO, such as single-chip camera 8-bit data output, and DSP may be 16-bit data input, in the microcontroller and DSP connection can use FIFO to achieve data matching purposes.3. Some important parameters of FIFOThe width of the FIFO: in the English data is often seen in the width, it is only a FIFO read and write data bits, like the MCU

The previous article (WEBRTC Audio-related Neteq (a)) is an overview of Neteq, know that it is mainly used to solve the network delay jitter drops and other problems to improve the voice quality, but also know that it has two large units of MCU and DSP components. MCU is mainly received from the network of voice RTP packets into the packet buffer, but also based on the calculated network delay and jitter bu

GPS tracking, on the X treasure on a large search, the price of dozens of to hundreds of levels are not homogeneous, why do they have to develop their own?1 for me, is the hardware resources at hand (GPRS GPS MCU) and software resources (VPS), calculate the pain of the egg, not actually, I work is very busy.2 for some users, buy a module is not Bob, why is it good to engage in such a pile of things? Well, not really.I have observed a lot of X-treasure

designers to find a FAT open source file system that is easy to transplant and use, occupies relatively small hardware resources, and has powerful functions. FatFs Module is a completely free and open-source FAT file system Module designed specifically for small embedded systems. It is fully written in standard C language, so it has good hardware platform independence, it can be transplanted to the 8051, PIC, AVR, SH, Z80, H8, ARM and other series of

the system hardware are: analog conversion, analog acquisition, application of high-precision 16-bit Analog Converter AD7705 in the system, application of precise clock chip DS1302, and alarm of four relays, the relay driver chip uses ULN2003; 4 ~ The 20mA current loop outputs the application of the digital-to-analog converter AD421 to provide the system detection signal. It is used to implement the interface for communication with the upper computer. System diagram 1. Figure 1 system hardwar