Simple composition problem. There are 128K x 8SRAM, 1Mb x 1DRAM, 256KB x 4DRAM. The above three chips need to be made into 4MB memory. Here is what I think. The first, the third, each expand to 1M. Th...
The main Flash memory is 512 bytes per segment? One segment is divided into 4 blocks, so why is each block only 64 bytes? Shouldn't it be 128 bytes? I really want an answer...
Special thanks to the contest moderator open82977352 for his thoughtful planning The Rabbit Lord will soon pass by and the Dragon King will arrive immediately. I believe that everyone must have many ...
1.Press P3.0 and release the P1.0 light , press again and the P1.0 light of the P3.0 port will turn off. 2.Press P3.1 and release the P1.1 light , press again and the P1.1 light of the P3.1 port will ...
How can I design a simple calculator interface and display it on the screen? How can I scan the screen to determine which key is pressed? Please help me, :Cry:...
[table=98%] [tr][td]Hello everyone, I need help urgently with K3PE8E400B-XGC0 (Samsung LPDDR2 240 balls). Dear netizens, I need help with the specification of some part numbers. If you can provide it,...
This program is written to simulate the serial port hardware mechanism. When used, a timed interrupt can be set with a time interval of 1/4 baud rate. The receiving function is called once for ea...[Details]
In
circuit design,
current
measurement
is widely used, and the main fields are divided into three categories: in measurement,
the electric meter
is used to measure the curre...[Details]
DSP (digital signal processor) is used more and more frequently in today's engineering applications. There are three main reasons for this: first, it has powerful computing power and is capable of ...[Details]
5. Identifiers and keywords of C language
A complete PIC microcontroller C language program usually consists of six parts: include files (i.e. header files 1, variable definitions, variable de...[Details]
As a simple and practical input device, buttons have been used in various microcontroller application systems and are ubiquitous. However, the buttons used in different practical occasions are also...[Details]
Abstract: In recent years, with the establishment and grid-connected power generation of a large number of solar photovoltaic power stations at home and abroad, photovoltaic grid-connected inverter...[Details]
This article will introduce a design method for a distributed control system used in a tracking car, which can perform distributed control of motor modules, sensor modules, and lighting control mod...[Details]
introduction
At present, measuring instruments are developing towards networking, and each individual embedded instrument will become a node on the Internet. This system realizes the network...[Details]
Every time I go home and walk up the stairs, I am always scared. The corridor lights are often broken, and no one changes the bulbs, or they are not smart enough and need to be operated manually. E...[Details]
The production process of lithium batteries does not mention the previous processes such as material preparation, winding, liquid injection, and packaging, but only talks about the final formation ...[Details]
The capacity of a battery depends on the amount of charge and discharge, in addition to some factors of the battery itself. Obviously, if the charge and discharge of the battery can be recorded all...[Details]
Features
POE technology can ensure the safety of existing structured cabling while ensuring the normal operation of the existing network and minimizing costs. The IEEE 802.3af standard is ...[Details]
Energy conservation and environmental protection are the main directions of current automotive technology research, and power batteries are the key to electric vehicle technology. Research on powe...[Details]
At present,
the control system used in
automobiles
can be divided into three parts from the functional point of view:
sensor
unit, control unit and execution unit. Among them,
th...[Details]
As a new type of centralized and decentralized elevator control system, serial communication has been widely used in China. Compared with the previous centralized and unified control system, each s...[Details]