NXP NXP P89v51rb2/rc2/rd2 single chip decryption chip hackThe P89v51rb2/rc2/rd2 is a 80C51 microcontroller that contains 16/32/64kb Flash and 1024 bytes of data ram.The typical feature of P89V51RB2/RC2/RD2 is its X2 mode option. With this feature, the design engineer can enable the application to run at the clock frequency of the traditional 80c51 clock frequency (which consists of 12 clocks per machine cyc
receiving; 16. Broken screen, display screen repair 8. touch does not reflect, touch on (lower) Half failure repair 17, the battery is not charged, change the original battery or tail plug repair 10: standby later did not reflect the power, calls cannot change to wake up mobile phone repair. 18. original high-quality apple accessories Apple products of various models original shell, Apple keyboard, Apple accessories, Apple original LCD screen to a very rare Apple motherboard, all-in-one solutio
IC chip design (7), ic Chip Design
IC chip design (7)
CDC (clock domain crossing)
DVFS
DVFS is the adjustment of the dynamic voltage frequency. The dynamic technology dynamically adjusts the operating frequency and voltage of the chip based on the different needs of the applications running on the
First, the characteristic parameter1, dedicated to audio processing of the ad chip 2, internal fixed 8K sample rate 3, 8-bit AD chip Second, the internal structure diagram Three, Chip pin diagram Four, the PIN function description
Pin Name
Function
In0~in7
Data-Entry
Abc
Data input port Selection
The External Interrupt of single-chip microcomputer has also been enhanced by other single-chip microcomputer, which is not triggered by a simple descent edge. Currently, high and low level triggering is triggered, and the rising edge and falling edge are triggered, more level changes are triggered. At present, the development is basically complete, and the external interrupt function is very great. It can
You can see usart in many data manuals. UART, SPI, IIC, USB, and CAN communication are messy. You know this is sharp. Serial Communication, there are data formats and data transmission rates. At present, many single-chip computers have UART, especially 51 in our university, which is everywhere on the network. So if I think about it, I will also flood it, or I will forget it later, haha.
51 The serial communication is relatively simple. Set the transmi
Msp430f149 single-chip serial C program, msp430f149 Single-Chip MicrocomputerMsp430f149 single-chip microcomputer serial port C program msp430f149 single-chip microcomputer Introduction: MSP430 Series single-chip microcomputer is a kind of 16-bit ultra-low power consumption,
Flash has the characteristics of power-down data storage. If Ram power-down occurs, data is lost, but Ram speed is higher. Theoretically, there is no limit on the number of writes, But Flash does not.Compared with other types of flash, NAND Flash has the advantage of high erasability and high write speed. However, Bad blocks may occur during use and use.Can be used only after processing. It is mainly used for data storage, and most USB flash drives are NAND Flash.Nor flash read/write timing is s
// Chocolate chip cookies (chocolate chip cookies) // PC/Ultraviolet IDs: 111304/10136, popularity: C, success rate: average level: 3 // verdict: accepted // submission date: 2011-11-05 // UV Run Time: 0.020 S // copyright (c) 2011, Qiu. Metaphysis # Yeah dot net // [solution] // if the distance between the two pieces of chocolate is less than or equal to the diameter of the mold, you can move the mold so t
The third part of this series mainly introduces the implementation details of the Skyeye hardware simulation platform. The main content includes the overall design of Skyeye, the Scalable framework of Skyeye, the key data structure of Skyeye, the simulation implementation of Skyeye on various CPUs, the simulation implementation of Skyeye on various peripherals, and how to install and use Skyeye and how to expand the simulation module of Skyeye. An in-depth understanding of Skyeye helps to gain a
What is the difference between a magnetic stripe card and a chip card? The central bank announced that the magnetic stripe card will be full chip card, chip card in the end what is the good? What is the difference between a magnetic stripe card? Consider the recent card-changing friends to see below the magnetic stripe card and
1. Dip dual-row direct insert Encapsulation
Dip (dualin-line package) is an integrated circuit chip encapsulated in the form of Dual-row direct insertion. Most small-and medium-sized Integrated Circuits (IC) use this encapsulation form, generally, the number of pins cannot exceed 100. The CPU chip in dip package has two pins and needs to be inserted into the chip
The delay program is widely used in SCM programming, but some readers do not know how to program the time delay programs in the study, and do not know the machine
The difference between the period and the instruction period, do not know the usage of the delay program instruction, this article from the time delay procedure basic concept, the machine cycle and the reference
To give a detailed answer to the reader in the form of a graphic method, such as the difference and connection of the cycle
Chip on board (COB)
Thermal conductive epoxy resin (Generally, silver-doped epoxy resin is used) to cover the placement point of the silicon wafer. Then, the silicon wafer is directly placed on the substrate surface and heat treated until the silicon wafer is firmly fixed to the substrate, then, the SI welding method is used to directly establish an electrical connection between the silicon wafer and the substrate. The bare
Http://tech.sina.com.cn/e/2014-11-07/14079770684.shtml
Sina Science and technology news November 7 afternoon, 360 children watch director Tishen Today Sina Science and Technology interview, the 360 children behind the watch technology, chip source, strap material, such as detailed interpretation.
360 children watch the most users of the attention is the positioning is accurate. Tishen revealed that 360 children's watches are built with five chips and
LM1117 (not LM117) power supply chip is a low-voltage differential linear regulator, referred to as LDO(Low dropout regulator), is a non-isolated (input and output voltage of the ground is a place) of the voltage conversion chip. Therefore, in the use of the time, as far as possible to the output voltage and input voltage pressure difference not too large, if too large, the consequences should be a serious
The North Bridge Chip (Northbridge) is the most important component of the motherboard chipset, which is the closest chip on the motherboard to the CPU, which is responsible for contacting the CPU and controlling memory, by establishing a communication interface between the processor and the PCI bus, DRAM, AGP, and L2 cache.
North Bridge Chip function
No
Single-chip microcomputer and (serial screen) touch screen communication based on Modbus Protocol (graphic)Introduction: Touch screen can be intuitive, vivid display of operating parameters and operating state, and through the touch screen screen can directly modify the system operating parameters, human-machine interaction is good. Touch screen and single-chip communication, the need for a single-
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