After porting uboot1.1.6, everything is fine except the network function. But now ping is not working, and tftp cannot be used. The board has DM9000AEP chip. Netizens said that the uboot driver is not...
Dear brothers: I am working on an i2c device driver recently. I found some information on the Internet and wrote a driver for my own device. But it cannot be compiled. It prompts variable 'ds2746_driv...
On April 25, Nokia finally announced that Microsoft's acquisition of Nokia Terminal was completed. This three-year "love affair" finally came to fruition. Compared with the $2.9 billion Lenovo gave to...
I recently saw an article by Qorvo introducing several major misunderstandings about GaN, which made me feel deeply moved.First of all, the issue that everyone considers is the cost. In the engineerin...
DS18B20_writeonechar(0x33);for(b=0;b {a[b]= DS18B20_readonechar();}//a[b] should be the serial number, right? But the data displayed on the LCD is 28 80 92 5f 30 0 0 2d.The serial number I got by copy...
This week I am mainly working on the small quadcopter. I will make up for it next week. However, there is progress on this small quadcopter. Here is a family photo...
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]
1 Introduction
The high temperature tester is mainly used for temperature tracking measurement and data acquisition during the heating process. By systematically analyzing the test data, the...[Details]
In public places such as schools, government agencies, factories and mines, as well as public corridors in residential areas, the phenomenon of long-burning lights is very common, which causes a h...[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]
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]
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]
VP2188 is a color STN LCD module produced by Jingdian Pengyuan. This module is a dot matrix transmissive color STN display screen with a color scale of 65 k colors and white LED backlight. Its core...[Details]
OC faults may be the most frequent and the most frequent of all faults in the inverter. They alarm during the startup process, during the shutdown process, during operation, and even when powered o...[Details]
Corelink Semiconductor has launched the CL1100-based 5-7W E27 LED lighting driver system solution DB2. This driver module meets the requirements of small size (L×W×H=5.1cm×2.1cm×1.8cm), low standby...[Details]
Today, with energy becoming increasingly scarce, the utilization of natural energy has become the focus of people's attention. Among various natural energies, the endless solar energy is highly fav...[Details]
Preface
In recent years, white light LEDs have gradually replaced incandescent bulbs and fluorescent lamps because they have unparalleled advantages over traditional light sources in terms...[Details]
Since the late 1990s, with the demand for higher system efficiency and lower power consumption, the technological update of telecommunications and data communication equipment has promoted the deve...[Details]
0 Introduction
High-precision current source can provide high-precision current supply for precision instruments, and is suitable for automatic measurement tasks of various resistors in semico...[Details]
0 Introduction
With the rapid development of social economy and science and technology, electric locomotives, subways and electric vehicles will be widely used. The power conversion and cont...[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]
Embedded System
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