uchar temp = 0; int ii; uchar tt,tt2; uchar a = 0, b = 0, c = 0; float f = 123.456; ii=653; a = f; f = f - a; f = f * 1000; b = (uchar)f; _nop_(); b = (uchar)((uchar)f / 100); //??? b=0xC8=200 ??? Why...
Quartus 2 will automatically close the software when opening a project, and the same problem will occur when creating a new project. However, it can open .V files. What is the reason? Please give me s...
A relative of mine runs a shop. He wants to make the garage shutter door into an automatic card swiping control, and designs a single-chip microcomputer control. It involves a photoelectric switch // ...
I want to write a function to operate the sqlce database in wince in my computer, but the system path is always wrong. How can I realize the computer's access to the sqlce database in wince? Thank you...
PSoC4 Virtual Voltmeter Watching the video first and then reading the article may make it easier for you to understand http://v.youku.com/v_show/id_XNjIyNzAzNDUy.html 1.1 Purpose and Function of the E...
This circuit can automatically disconnect the charging or discharging circuit of two nickel-cadmium batteries when they are charged to 3V or discharged to 1.34V, effectively preventing overcharging or...
In early 2002, I started to write a working program for an IC card prepaid electricity meter. The meter used Philips' 8-bit 51-expanded single-chip microcomputer
87LPC764
, and wa...[Details]
When the WDP500-2A plane grating monochromator is used to test the emission wavelength of a high-power laser diode at different currents, the matching of the laser diode has the disadvantages of lo...[Details]
Google's driverless technology is not only an eye-catching technology, but also a subversion of the car usage model.
Those who have watched anti-terrorism films and TV dramas must have been im...[Details]
I. Introduction
In the field of power conversion, isolated converters (forward, flyback, and double-ended) with low output DC voltage all use MOSFET as the rectifier device. Since these devi...[Details]
Overview
As a remote network communication control method with advanced technology, high reliability, complete functions and reasonable cost, CAN-bus has been widely used in various automa...[Details]
0 Introduction
With the rise and continuous improvement of the solid-state lighting industry, light-emitting diodes (LEDs) have become an alternative lighting technology and are gr...[Details]
HL201A is a special thick film driver integrated circuit with a capacity of less than 75AGTR developed by Xi'an Power Electronics Technology Research Institute. The article explains the pin arrange...[Details]
When developing electronic products with processors, how to improve anti-interference ability and electromagnetic compatibility?
1. The following systems should pay special attention to anti-...[Details]
Current
measurement:
Magnetic balance Hall current
sensor
is used
. The sensor can measure AC from DC to 100kHz.
In automatic measurement and control systems, it is often nec...[Details]
In the development direction of the automotive industry, electric vehicles (EV) and hybrid electric vehicles (HEV) are becoming an obvious trend. From a technical point of view, hybrid power is mor...[Details]
1 Overview
As a driving power source, the new battery has a range of more than 200 km within the acceptable weight range of the mass market, which provides an important way for power batteries...[Details]
The Challenge:
Providing a flexible, powerful robotics design platform
to more than 40,000 high school students participating in the FIRST
Robotics
Competition (FRC).
The So...[Details]
Some experience we have accumulated when debugging a system using Keil C
1. Since Keil C does not support Chinese very well, the displayed cursor will be inconsistent with the actual cursor positi...[Details]
1. Introduction
According to the definition of the International Electrotechnical Commission (IEC) and the American Instrument Society (ISA), fieldbus is a digital, two-way transmission, multi...[Details]
1. Introduction
PROFIBUS is an international, open asynchronous serial communication standard, which is widely used in manufacturing automation and process automation, buildings, transportatio...[Details]
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