0000000 irq:0 2: uart:unknown port:00000000 irq:0 3: uart:unknown port:00000000 irq:0 There are three device files s3c2410_serial0 1 2 under /dev. s3c2410_serial0 1 2 are connected, and the connected ...
I used the STM32F105RB program to write a code to the USB sector
U8 MassStorageDevSectWrite(U32 LBAddr,U16 Len,U8 *PtrBuf) {U32 *tmp;U32 Tag=0x0000000c,TotalByteNum_32,MassStorageDevSectReadTryCnt;U16...
I was really envious and jealous of the video player made by the Japanese before, so I spent time to make this one. Although the effect is far from that, it is finally worthy of the audience. I didn't...
[i=s]This post was last edited by ltbytyn on 2017-10-8 00:47[/i] Touch buttons are a major feature of CH554, so they are tested first I looked at the schematic diagram and found that there are only 3 ...
SIPEX
SP6682 High-efficiency charge pump regulator for white LEDs
SP6683 High Power LED Driver in Parallel Configuration
SP6685 Charge Pump LED Driver for Camera Flash
SP6686 400mA Buck/Boost Charge P...
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]
0. Introduction
In daily life, we often see some special-purpose vehicles. When these vehicles pass through intersections, they often obtain the right of way at intersections by temporarily op...[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 recent years, the market for mobile/portable devices such as smartphones and laptops has continued to grow rapidly. While these products continue to integrate more new features to enhance the ...[Details]
1. Introduction
Light control circuit plays a vital role in urban street lamps or corridor lighting. With light control circuit, the lights can be automatically turned on and off according to ...[Details]
From the PIC16F946 datasheet, we know that there are two ways to write values to the LCD for display:
1. Directly write the value to LCDDATA1~LCDDATA23
2. Use disconnect t...[Details]
Continuity test
A variety of devices need to be checked for continuity, including cable assemblies, printed circuit boards, and connectors to ensure that these components have the expected contin...[Details]
With concerns about the growing energy crisis, motor efficiency has become an important and timely topic. This is because motors use 63% to 70% of the electricity produced in the United States and ...[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]
With the rapid development of wireless
digital communication
, more challenges have been raised for integrated circuit design and testing. In the product design stage, in order to ensure
t...[Details]
The launch of Shenzhou IX is imminent, and Tiangong is welcoming visitors again. Yesterday, Professor Fu Qiang, Vice President of the Institute of Science and Industrial Technology of Harbin Instit...[Details]
LED is now known as the fourth generation of light sources. High-power LED has many advantages over traditional light sources in outdoor lighting.
1 LED lamps have high light efficiency
C...[Details]
Leakage current is generated by parasitic resistance paths between the measurement circuit and a nearby voltage source. This current can significantly reduce the accuracy of low current measurement...[Details]
Embedded System
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