Taking into account the ferroelectric storage function of FR5739 and the 3-axis accelerometer module, a pedometer that can be saved when the power is off can be made. By doing certain calculations and...
I record audio on a PC and then transmit it to an ARM9 board (WinCE6.0 operating system, UDA1380 audio codec chip) via TCP/IP for playback, but it doesn't play. I use wave series operation functions. ...
I am debugging a RIL driver now, and the debugging information of the ril proxy can be printed out by modifying the registry, but I don't know how to display it for CELLTSP, because there is no source...
Please help me, who can help me find the real model of the chip silk screen? If the trial production is successful, add WeChat and transfer a red envelope of 100 yuan immediately. Although the silk sc...
I now have a 5V power supply, which is used to power digital signals such as the DSP development board. On the development board, VCCA and GNDA are obtained through magnetic beads to supply the AD mod...
The manufacturability of PCB designs is divided into two categories:
One refers to the processing technology of producing printed circuit boards;
The second refers to the assembly process of component...
There are three types of mobile TV: one is based on analog TV broadcasting network, another is based on mobile communication network, and the other is based on digital broadcasting network. The f...[Details]
In the previous series, we have listed some basic knowledge of C language in Tables 1 to 3. We hope that beginners can strengthen their memory of the above tables and gradually learn to use them wh...[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]
1 Introduction
Intelligent control instruments are one of the most commonly used controllers in industrial control. They are mainly aimed at a specific parameter (such as pressure, tempera...[Details]
Toyohashi University of Technology demonstrated electric field coupled wireless power supply technology using life-size car tires and roads at the wireless technology exhibition "Wireless Technolog...[Details]
1. When the slip speed regulating motor is undergoing frequency conversion and energy saving transformation, the original excitation box (referred to as the speed regulating box) and the original s...[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]
With the widespread application of new services and technologies in the communications industry, the scale and capacity of operators' network construction are getting larger and larger, and the ris...[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]
The installation locations of DC-DC converters are relatively scattered. DC-DC converters can be found on the power board, main board, logic control board and other circuit boards of PDP color TVs....[Details]
Currently, high-frequency and high-efficiency DCDC converters are increasingly used in automotive electronic systems.
High switching frequency can use smaller power inductors and output filter...[Details]
1 Introduction
With the development of computer technology and information technology in the world, the global information age has arrived. All countries are formulating their own development p...[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]
1 Introduction
The stepper motor is an actuator of an open-loop servo motion system, which is controlled in a pulse mode and outputs angular displacement. Compared with AC servo motors and DC servo ...[Details]
The number of timers/counters and interrupt sources directly determines the performance of the microcontroller. The MCS-51 microcontroller has two programmable 16-bit timers/counters and five inter...[Details]