I wrote the clock on the first 16 bits of the LCD, and the alarm on the last 16 bits of the LCD.
The clock has been set and can be debugged normally, but when I press the alarm button, that is, after ...
On May 25, 2009, Xinhua News Agency’s Oriental Outlook Weekly published an article titled “The Business War Driving Force Behind the Frequency Conversion Chaos” which shook the Chinese air-conditionin...
I'm a new user, thanks for browsing. I bought a TQ2440 development board based on S3C2440. I have some basic knowledge of programming and I want to get started with embedded development. Now I sincere...
I bought a tq2440 development board and made a development board based on it. The bootload and image I use now are all provided by tq2440. I use jlink to burn uboot into st39vf1601, and then start fro...
Pin 2 is a straight-in pad, and pin 8 is a surface mount pad.
As shown in Figure 1, only open the silk screen layer and the top layer, then check the PCB board, and you will find that the green part o...
introduction
The emergence of high-performance, low-power embedded CPUs and high-reliability network operating systems has made it possible to implement applications with large amounts of comp...[Details]
1. Overview
The Virtual CAN Interface (VCI) function library is an application program interface specifically provided for the use of ZLGCAN devices on PCs. The functions in the library ar...[Details]
1. Project Introduction
Shandong Dezhou Xingtai Paper Co., Ltd. is a newly built high-end paperboard production enterprise with domestic leading level established by Shandong Zhaodongfang Pape...[Details]
1 Introduction
Water resources are the basic conditions for human survival and the lifeline of economic development. The reality shows that due to the global shortage of water resources and th...[Details]
In recent years, with the increasing maturity of LED technology, LED light sources have been increasingly widely used due to their advantages of using low-voltage power supply, low energy consumpti...[Details]
1. Project Introduction
Beijing Benz-Daimler Chrysler Co., Ltd. is a joint venture between Beijing BAIC Group and Benz-Daimler Chrysler. In October 2005, it started to build a new automobile ...[Details]
1 Introduction
Lijia'an Yellow River Diversion Culvert is a large gravity diversion gate in the lower reaches of the Yellow River. The Yellow River Diversion Culvert is located in Lijia'an Vi...[Details]
UDN2916LB is a two-phase stepper motor bipolar driver integrated circuit launched by SANKEN. It can drive dual-winding bipolar stepper motors and is particularly suitable for controlling dual-step ...[Details]
As we all know, the manufacturing of modern automobiles is divided into four major processes: stamping, welding, painting and assembly, and the powertrain constitutes five inseparable production pr...[Details]
The circuit has overcharge protection, over-discharge protection, over-current protection and short-circuit protection functions. Its working principle is analyzed as follows:
1 Normal state
...[Details]
Background
The proliferation of ultra-low-power wireless sensor nodes for measurement and control purposes, combined with new energy harvesting techniques, has made it possible to create ful...[Details]
1. Don't say "Give me a code" as the first sentence when you see someone else's reply. You should think about why. When you figure it out yourself
and refer to other people
's
tips, you will...[Details]
Different places have accumulated certain experience in equalizing charging of battery packs, but it is difficult to master it properly. Long-term non-equalizing charging or frequent equalizing cha...[Details]
In recent years, information technology based on microelectronics and computer technology has developed rapidly, and ultrasonic non-destructive testing instruments have also gained unpreceden...[Details]
1. Architecture and operation of electronic toll collection system
The basic principle of the electronic toll collection system is to enable a special device (on-board unit) installed on t...[Details]
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