I use STC89LE58RD+ chip. When LCD displays, there will be garbled characters if a key is pressed. Please help! Keyboard scanning uses T1, LCD operation is in the main loop, and there is an external in...
[i=s]This post was last edited by jameswangsynnex on 2015-3-3 20:00[/i] I am designing an IPOD module. The audio is OK, but there is no video protocol! I found a supplier to solve this problem, but th...
[table][tr][td][size=9pt]How can I get the signal before modulation of the infrared remote control? I have tried to demodulate the modulated signal using an RC integrator circuit. After a long time of...
DSP28335 has 12 16-bit ePWMs, which can control frequency and duty cycle. The clock of ePWM TBCLK = SYSCLKOUT / (HSPCLKDIV × CLKDIV):The PWM signal frequency is determined by the time base period regi...
The external interrupt is occupied by other applications. I want to use the falling edge to trigger. When the timer counts the external pulse, should it detect the falling edge or the rising edge?...
In the mobile power USB load automatic detection circuit, the B pole of the transistor is connected to the GND pin of the USB interface, and the C pole is connected to the MCU IO pin. When the USB cha...
1. Overview
Will passive devices
produce nonlinear intermodulation distortion? The answer is yes! Although there is no systematic theoretical analysis, it has been found in engineerin...[Details]
As a wireless broadband metropolitan area network standard, WiMAX technology has greater advantages than previous 3.5GHz MMDS products in terms of non-line-of-sight transmission and spectrum utiliz...[Details]
At present, the traffic congestion in cities is quite serious. According to relevant news reports: In China, the traffic congestion has expanded from megacities such as Beijing, Shanghai, and Guang...[Details]
This paper designs a dot matrix LED text display screen that is easy to update, expandable, and low-cost. The way to reduce costs is
① Use the Bluetooth data transmission function of mobile ph...[Details]
0 Introduction
With the development of society, people pay more and more attention to security work. Monitoring products have been used in various fields instead of being used only in importan...[Details]
introduction
The emergence of high-performance, low-power embedded CPUs and high-reliability network operating systems has made it possible to implement applications with large amounts of comp...[Details]
A multi-point temperature control heating control system was designed using the SST89E564RC single-chip microcomputer and a new temperature measuring device. The heating system can be controlled in...[Details]
Product series: PB-B-RS232/485 interface (hereinafter sometimes referred to as "interface") is a product in the PROFIBUS bus bridge series.
The main purpose of the bridge series ...[Details]
1 Introduction
Water resources are the basic conditions for human survival and the lifeline of economic development. The reality shows that due to the global shortage of water resources and th...[Details]
my country is a big country in agriculture, grain production and consumption. Grains are a necessary condition for our nation to survive and develop. The flour processing industry will exist forever w...[Details]
PV inverter manufacturer SMA has launched its first DC arc fault circuit interrupter (AFCI) PV inverter and has received UL certification.
The new SunnyBoy AFCI inverter models include 3000-US...[Details]
12v Lead Acid batteries used in trucks, cars, RVs and uninterruptible power supplies are usually rated at 12V. This circuit monitors the battery, the charge and discharge curves, gives the cu...[Details]
The concept of state machine
State machine is an important concept in software programming. More important than this concept is its flexible application. In a clear and efficient program, ther...[Details]
This paper designs a 16x16LED Chinese character display bar based on single-chip dynamic scanning control, briefly analyzes the principle of Chinese character display, and studies how the LED displ...[Details]
Spatial Division Multiplexing (SDM) MIMO processing can significantly improve spectrum efficiency and thus greatly increase the capacity of wireless communication systems. Spatial Division Multip...[Details]
Embedded System
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