;Bright point STM32 assembly language marquee, only 1 program;LED port is GPIOC6,7,8,9;#define led_gpio GPIOC;#define led1 GPIO_Pin_6 //led1 is connected to GIIOC_6;#define led2 GPIO_Pin_7 //led2 is c...
I compiled it on the Qualcomm 6245 platform, but after installing it on the phone and executing the test case, I can't see the test.cov file on the phone using QPST. What should I do? In covrt.c, I de...
Chapter 4 Fast Fourier Transform (FFT) (FFT) 4． 1 Introduction Fast Fourier Transform (FFT) is not a new transform, but a fast algorithm of Discrete Fourier Transform (DFT). The calculation of DFT is ...
Because the voltage of AD is 0 to 15V after passing through AD595, and the sampling voltage of low-power AD chip is generally in the range of 0 to 5V. So I need to find a way to reduce the voltage to ...
[align=left] A few years ago, I bought a GY-31 color sensor module, which uses the TCS3200 chip. This time, the topic is to use this color sensor module to make a color card password lock. Today, let'...
画中画广告开始Luxurious MCU development system 498 yuanFor stable video output:S3C2410 ARM9 development board 780 yuan DSP5402 learning development board II 200 yuanSummer discount: S3C44B0 development board...
At present, the development of wireless power supply technology for electric vehicles (EVs) is becoming more and more active. In 2012, Volvo of Sweden established Volvo Technology Japan in Tokyo as...[Details]
Traditional broadcasting systems generally need to be operated manually at a fixed time, and can only realize one-way broadcasting with few functions. Traditional bell ringing equipment has a singl...[Details]
1. Circuit composition
The whole circuit consists of two parts:
1. Power saving control circuit
As shown in the figure below. Including delay circuit and drive circuit.
(1) Delay ci...[Details]
1. Introduction
With the growth of parking demand, the scale of parking lots is becoming larger and larger. A lot of research has been done on intelligent parking lots in China, but most of th...[Details]
Automotive applications are particularly sensitive to EMI events, which are unavoidable in a noisy electrical environment consisting of a central battery, bundled wiring harnesses, various inductiv...[Details]
Converged processors meet scalability requirements
In current embedded system design, solutions based on MCU, DSP, FPGA and ASIC account for more than 90% of the market share. These solutions ...[Details]
In order to highlight the concept of "energy saving and environmental protection" of intelligent buildings, solar street lights are designed for intelligent communities. The inclination and capacit...[Details]
1. Principle of displacement angle sensor
The angle sensor is used to detect angles. It has a hole in its body that fits the LEGO axle. When connected to the RCX, the angle sensor counts once ...[Details]
Although it is relatively easy to check the stability of a simple amplifier at lower frequencies, it may be much more difficult to evaluate the stability of a more complex circuit. This artic...[Details]
I. Introduction
Since RS232 has a short communication distance (only 15 meters according to EAT/TAI-232 standard), and can only perform point-to-point communication, it cannot directly f...[Details]
Digital array radar (DAR) uses digital beam forming (DBF) in both receiving and transmitting modes to achieve flexible distribution and reception of RF signal power in the airspace, obtain excellent t...[Details]
TC9012F is a universal CMOS large-scale integrated circuit for infrared remote control signal transmission, suitable for remote control of TV, VTR, laser player and other equipment. In the market, ...[Details]
Investment in
the
medical device
industry has been on the rise in recent years. In the past two years, venture capital for medical devices has almost doubled, reaching $4 billion in 2007. Fr...[Details]
introduction
MEMS is a high-tech that has flourished on the basis of integrated circuit production technology and dedicated micro-electromechanical processing methods. Pressure sensors develop...[Details]
Recently, news came from the certification department that the photovoltaic grid-connected inverter of Samil New Energy Co., Ltd. (hereinafter referred to as "Samil New Energy") has once again obta...[Details]
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