When using atof in IAR EWARM 5.20, there is no problem in compiling and linking, but it returns an error result when running. Why is this? ? ?In addition, I am using the STM32F103ZC (cortex-m3 core) c...
I have been using the infrared all-in-one machine for more than a year. Recently, I visited customers and they felt that there were too many problems. 1. It is not clear at night. 2. It is easy to fog...
[font=宋体][color=rgb(12,12,12)][backcolor=rgb(255, 255, 255)][size=24px][size=2]Disclaimer: This article is excerpted from the Chinese translation of the world-class book "The Definitive Guide to Opera...
Read_usb1(0,rcv_data,&Length); //Receive data from USB and put it into rcv_data. The data here is normal for(i=0;iRichedit_data-Text=ascr; Why does the value in rcv_data have some extra characters ine...
I use 149, crystal oscillator 8M, and timer interrupt. In the main program, I clear R6 first, enter the interrupt, add 1 to R6, and then process other things. I jump out of the interrupt and return to...
Today's portable medical devices allow patients to diagnose and treat themselves, move around freely, and even use the devices when they are out and about. To achieve the "easy to carry" feature, po...[Details]
1 Overview
Drugs are like a "double-edged sword". They can treat diseases but can also cause serious adverse consequences. The dual nature of drugs depends on whether they are used rationally....[Details]
1 Introduction
The integration of sensor technology and RFID has just started. As one of the world's major manufacturing and consumer countries, China should seize this opportunit...[Details]
1 Overview
The BP01 pressure sensor is specially designed for monitoring blood pressure and is mainly used in portable electronic sphygmomanometers. It uses a precision thick-film ceramic chip and...[Details]
PCI (Perip heral Component Interconnect) is an advanced high-performance 32/64-bit local bus that supports linear burst transmission and has a maximum data transmission rate of 132MB/s. At the same...[Details]
Third generation (3G) mobile phones offer a variety of features with more functionality. As consumers enjoy the latest and better features of these communication devices, they continue to demand lo...[Details]
As mobile phones have evolved from simple voice communication tools to multimedia devices that integrate communication, imaging, and gaming, application processors are replacing baseband chips as t...[Details]
1 Introduction
In recent years, with the rapid growth of mobile phones and MP4 video players, it is estimated that the production of mobile phones this year will reach 1 billion units, and...[Details]
introduction
The most common flight state of a fixed-wing aircraft is horizontal flight. If it is allowed to fly at a large angle, the action cannot be maintained all the time. If it is al...[Details]
summary
Theoretically explains how to set up a PFC boost regulator using a current sensing transformer with the UCC3817 control IC.
1. Schematic
The schematic diagram is show...[Details]
A well-designed electronic load is not designed just for use in the lab; it should be carefully designed and built to test actual power systems. This is true for military portable systems, such as ...[Details]
1. Introduction
The UCC28051 reference design is a 100W offline AC/DC voltage converter with power factor correction (PFC). This power module design is intended to illustrate how to proper...[Details]
1. Basic circuit characteristics of power amplifier
The basic circuit of the complementary symmetrical OTL power amplifier is shown in Figure ①. Among them: C1 is the signal input coupling ele...[Details]
Multimedia communication terminal equipment has a wide range of application prospects and can be applied to various fields such as video conferencing, videophone, PDA, digital television, etc. Therefo...[Details]
With a 31-step dimming range, existing LED drivers offer good dimming capabilities, providing smooth backlight boosting or dimming effects for LCD displays. However, when the end application involv...[Details]
Microcontroller MCU
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