relaydrv.c driver:relaytest.c application program:Makefile:When testing, set it up yourself, use the following commands: mknod /dev/relaytest c 251 0 insmod relaydrv.ko ./relaytest rmmod relaydrv Some...
Our project is to make an automatic sample feeder, which is driven by a motor and requires a speed of 300mm/s. The speed is quite fast, so uniform acceleration must be achieved when starting and stopp...
[p=30, null, left][font=Verdana,][转][/font][/p][p=30, null, left][font=Verdana,]作者:吴川斌[/font][/p][p=30, null, left][font=Verdana,]We often see in textbooks or IC factory PCB design guidelines that at ...
Repost - Yijian version of the pocket oscilloscope DS203 open source data has a complete set of source code open, for those who are interested to learn together. itfans.taobao.com[size=3][color=black]...
What is an incomplete type?
C language types are divided into three categories: functions, objects (such as char, int, arrays, structures, pointers) and incomplete types.
Incomplete types are types wh...
Experts, how do I use the RTC alarm to start the computer on time in WINCE? What is the principle? Please note that it is not to wake up the system through RTC, but to start the computer!...
1 Introduction
A wide variety of communication cables and control cables are widely used in various instruments and control equipment. Whether the cable is well-conducted and
whether
th...[Details]
No matter which processor you are learning, the first thing you need to understand is the registers and working mode of the processor.
ARM has 37 registers, including 31 general registers and ...[Details]
All electronic design engineers and scientists have performed electrical signal analysis, or signal analysis for short. Through this basic measurement, they can gain insight into signal details and...[Details]
The data collector of the automatic weather station is generally designed based on a single-chip microcomputer or a PC/104 bus controller. It has the characteristics of good compatibility with PC, low...[Details]
1. Introduction
At present, most lighting equipment still uses traditional energy for lighting. Making full use of solar energy as the energy supply for lighting equipment is of great si...[Details]
Overview:
This paper introduces a method of connecting a CAN-bus network with Ethernet to form a medium-sized remote monitoring/data transmission network.
CAN (Controller Area Network) is ...[Details]
MediaTek (2454) announced the acquisition of F-MStar (3697) and attracted the attention of IC design industry. This morning, Gartner Semiconductor Industry Research Director Hong Cenwei analyzed ...[Details]
With the rapid development of intelligent control technology, computers and information technology, the trend of information appliances IA (Information Application), computers and communications integ...[Details]
Many battery-powered systems require a visual indicator to show when the battery needs to be replaced. LEDs are commonly used for this purpose, but they consume at least 10mA of current. This con...[Details]
Problems such as the depletion of natural resources, air pollution, traffic congestion, and rising fossil fuel prices have forced societies and individuals to seek alternative means of transportati...[Details]
Motors, especially those with brushes, generate a lot of noise. This noise must be dealt with if the appliance is to meet the requirements of EMC standards. The means to solve EMC are nothing more ...[Details]
Introduction
X1226 has the functions of clock and calendar. The clock relies on hour, minute and second registers to track, and the calendar relies on date, week, month and year registers to tr...[Details]
The above is to use MB1404 as a stereo composite signal transmitter. You can use the internal high-frequency amplifier and oscillator or not! According to my experience, I still recommend beginners...[Details]
LED is the abbreviation of the English word. Its main meanings are: LED = Light Emitting Diode, a solid-state semiconductor device that can convert electrical energy into visible light. It can dire...[Details]
Cars equipped with xenon headlights are already common on the road. Whether they are standard equipment on high-end cars or embellishments on modified cars, xenon lamps are gradually becoming a sym...[Details]