This DIY activity is almost done, and I have started to post some of the previous records. [POV based on R7F0C809] DIY Part 1: Software Development Environment Installation Use the official latest ver...
What is the difference between the following two methods of reading external expansion RAM? Why does my program return strange results? [/font][/backcolor][/color] [color=#333333][backcolor=rgb(245, 2...
Colorimetry is a science that studies color measurement. Its task is to study the qualitative and quantitative laws and applications of human color vision. Color vision is a kind of photopic vision of...
Regarding the 125Khz low-frequency card, the wavelength of its electromagnetic wave is 2400 meters. Is the coil of the card reader an antenna or a mutual inductor? If it is an antenna, then the optima...
As shown in the figure, the half-bridge inverter topology
In the case of power failure, if the ±Vbus bus voltage is greater than 36V, the drive signals of the two power tubes Q1 and Q2 still exist, ca...
Should the feedback loop of the buck switching power supply include the ferrite bead connected to the output terminal in the loop? What impact will it have if it is included? Generally, it should not ...
1. Principle 1. Infrared emission protocol The infrared transmission protocol has been written in the previous article , so I will not repeat it here. 2. Timer counting and input capture A timer...[Details]
1 Introduction Due to the special working environment of coal mine production, the production process is more dangerous and unsafe than the general industry. With the continuous increase in c...[Details]
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The anxiety of the post-Internet era is that if you don’t revolutionize ...[Details]
STM32 has two watchdogs: independent watchdog and window watchdog. This article mainly introduces the use of independent watchdog. Independent watchdog (IDWG): driven by an independent 40KHZ low-sp...[Details]
1. Function and purpose There are two pins BOOT0 and BOOT1 on each STM32 chip. The level status of these two pins when the chip is reset determines which area the program starts from after th...[Details]
environment: Host: XP Development environment: MDK4.23 MCU:STM32F103CBT6 illustrate: Collect AD through pins PA1 and PA2. Collect AD 10 times for each channel. #include "ad_driver.h" //Global ...[Details]
The single-chip microcomputer running light program requires all 32 serial ports to be used, and each serial port has eight LEDs. Question supplement: The 8051 single-chip microcomputer is used, an...[Details]
A simple experimental programming question for the microcontroller: write a 3-byte binary addition subroutine. The program entry is: addend 1: 22H, 21H, 20H three bytes, 22H is the highest bit; adden...[Details]
Design a program for the 51 single-chip microcomputer. It is known that the crystal oscillator frequency of the 89C51 single-chip microcomputer is 12MHz, and it is required to use T1 timing to output...[Details]
1. Pin: 0 in 1 out Set Status Output status IO register setting DDR×A certain bit is set to 1, and the corresponding bit IO is set to output; PORT×A certain position is 1/0, and t...[Details]
Take serial port interrupt as an example: like: void serial() interrupt 4 { } and void serial_uart() interrupt 4 { } The functions of both functions are to define the serial port interrupt function. ...[Details]
After three years of continuous decline in its mobile phone business, ZTE has finally revealed its true feelings to the outside world: the Chinese market is its weak point, and it is planning to f...[Details]
Mobile phone battery charger program made by STC12C2052AD microcontroller #include stc12c2052ad.h #include intrins.h #define uchar unsigned char #define uint unsigned int sbit REF =P1^0; sbi...[Details]