[color=rgb(0, 0, 0)][font=宋体][size=10pt]This is my first time using a 430 MCU, F149. High speed crystal oscillator 8M, low speed 32K. When I download a program, the message "security fuse **own" appea...
I recently made an ultrasonic detection circuit, but there was a problem in the ultrasonic transmitting circuit. I referred to the transmitting circuit at http://www.vipcn.com/dianzijixie/ceshiceliang...
I have been an entrepreneur for 10 years, and I have experienced 9 failures and 1 survival. I have taken advantage and suffered losses, worked hard and been lazy. I am very sad to see that this forum ...
AT91R40008 is plugged into FPGA. Currently, the purpose is to create a network port to connect to FPGA, so as to facilitate data transmission and communication with FPGA. The more troublesome thing ab...
The transistor has three working states: cutoff, amplification, and saturation. The amplification state is very knowledgeable and complicated, and is mostly used in integrated chips, such as op amps, ...
How to draw the initialization flowchart when using 8259A to expand the interrupt function of PC to 8 interrupt inputs on IRQ2? I know how to do it for one chip, but I am not sure how to cascade two c...
In recent years, the market for mobile/portable devices such as smartphones and laptops has continued to grow rapidly. While these products continue to integrate more new features to enhance the ...[Details]
1. Introduction
Light control circuit plays a vital role in urban street lamps or corridor lighting. With light control circuit, the lights can be automatically turned on and off according to ...[Details]
Introduction
Power subsystems are becoming more and more integrated into the overall system. Power systems have moved from being separate "essential dangerous devices" to being monitorable...[Details]
With the rapid development of intelligent control technology, computers and information technology, the trend of information appliances IA (Information Application), computers and communications integ...[Details]
1. Disadvantages of choosing too high a voltage level
Choosing too high a voltage level will result in too high an investment and a long payback period. As the voltage level increases, the...[Details]
Liquid crystal display (LCD) panels have a wide range of applications, from small portable electronic devices to large fixed devices, including digital cameras, laptops, personal data assistants, d...[Details]
When the so-called "copycat phones" that flood the domestic mobile phone market move towards large screens, stereo amplifiers, touch controls, and even GPS navigation and mobile TV, the homogeneity...[Details]
1 Introduction to LED
With the development of science and technology, people have higher and higher requirements on automobile light sources. LED (Light Emitting Diode) has gradually attracted...[Details]
Leakage current is generated by parasitic resistance paths between the measurement circuit and a nearby voltage source. This current can significantly reduce the accuracy of low current measurement...[Details]
1 Introduction
Power supply ripple will interfere with the normal operation of electronic equipment, causing malfunctions such as computer crashes, data processing errors and control system fa...[Details]
1. Introduction
AS-Interface bus technology is an intelligent network that uses a single cable to connect sensors and actuators to controllers, transmit data, and provide power. It can be used...[Details]
Traditionally, when using PLC to control stepper motors, a dedicated stepper motor control intelligent module is usually added to the PLC, and then connected to the drive power supply to realize th...[Details]
Stepper motors, also called steppers, use the principles of electromagnetism to convert electrical energy into mechanical energy and have been used since the 1920s. With the increasing popularity o...[Details]
Various electronic and electromagnetic interference inside and outside the car often puts automotive electronic equipment in dangerous working conditions, degrading the performance of electronic eq...[Details]
1 Causes of problems with electric vehicle batteries
1.1 Caused by the battery itself
Why do we say that? In the previous issue, we learned about the working princi...[Details]
Microcontroller MCU
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