void delay100us(unsigned char n) { #pragma asm more: mov R3,#48 djnz R3,$ djnz R7,more #pragma endasm } The result is: DELAY100US.C(1): warning C280: 'n': unreferenced local variable When I called it,...
[i=s]This post was last edited by jszszzy on 2021-11-16 23:26[/i]Anxinke PB-02 module review (1) ------ appearance displaycompilation environment construction
The module arrived a few days late becaus...
I built an integrated library myself. After drawing the schematic and package, I also associated it. When generating the PCB, why does it say that the package cannot be found? Attached file, can the m...
[color=#333333][font=微软雅黑, arial][size=16px]Diode limiting is easy to understand. But I am a little confused about clamping. [/size][/font][/color][color=#333333][font=微软雅黑, arial][size=16px]Why can D...
When using gcc to compile the u-boot kernel, an error is always reported, for example:
scripts/Makefile.host:118: recipe for target 'scripts/basic/fixdep' failed
Makefile:381: recipe for target 'scrip...
[size=4][color=#a0522d][font=宋体] With the arrival of summer, thunderstorms are becoming more frequent. Users who have installed solar energy equipment need to be extremely careful at this time, becaus...
At present, the development of wireless power supply technology for electric vehicles (EVs) is becoming more and more active. In 2012, Volvo of Sweden established Volvo Technology Japan in Tokyo as...[Details]
Assume that data is read from 8-bit AD (if it is a higher-bit AD, the data type can be defined as int), the subroutine is get_ad();
1. Limited secondary filtering
/* A value can be adjust...[Details]
Automotive applications are particularly sensitive to EMI events, which are unavoidable in a noisy electrical environment consisting of a central battery, bundled wiring harnesses, various inductiv...[Details]
Floating-point digital signal processing has become a constant requirement for precision technology, often in applications requiring high accuracy in areas such as aviation, industrial machinery, a...[Details]
In order to highlight the concept of "energy saving and environmental protection" of intelligent buildings, solar street lights are designed for intelligent communities. The inclination and capacit...[Details]
1 Introduction
Solar street lights are mainly composed of four parts: solar photovoltaic cell components, batteries, charge and discharge controllers, and lighting fixtures. The bo...[Details]
Although it is relatively easy to check the stability of a simple amplifier at lower frequencies, it may be much more difficult to evaluate the stability of a more complex circuit. This artic...[Details]
In the previous series, we have listed some basic knowledge of C language in Tables 1 to 3. We hope that beginners can strengthen their memory of the above tables and gradually learn to use them wh...[Details]
Editor's note: In order to help technicians or engineers who have knowledge of PIC microcontroller assembly language quickly master the method of using C language to program PIC microcontrollers, t...[Details]
I. Introduction
Since RS232 has a short communication distance (only 15 meters according to EAT/TAI-232 standard), and can only perform point-to-point communication, it cannot directly f...[Details]
Digital array radar (DAR) uses digital beam forming (DBF) in both receiving and transmitting modes to achieve flexible distribution and reception of RF signal power in the airspace, obtain excellent t...[Details]
Experimental tasks
A DS18B20 is used to form a temperature measurement system. The temperature measurement accuracy reaches 0.1 degrees. The temperature range is between -20 degrees and +50 de...[Details]
Overview
In spectral measurement, photomultiplier tubes (PMT) and charge-coupled devices (CCD) are often used as photoelectric converters. PMT is used in slow-changing, high-precision spectral...[Details]
TC9012F is a universal CMOS large-scale integrated circuit for infrared remote control signal transmission, suitable for remote control of TV, VTR, laser player and other equipment. In the market, ...[Details]
Printed circuit boards ( PCBs
)
are used in most electrical products
. If a PCB has low
insulation resistance
(IR), the performance of the circuits on the PCB will be greatly reduced...[Details]
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