Everyone can have the opportunity to enjoy the fun of 32-bit! Chongqing Youyite Electronics Co., Ltd.'s latest EJ-STM32 is a DEMO board based on STMicroelectronics (ST) STM32 series high-performance 3...
I recently used FPGA to make an SDRAM controller. It was originally connected to one SDRAM, and it has been debugged OK. Now I need to expand the capacity. I don't know how to connect two SDRAMs? The ...
[i=s]This post was last edited by elvike on 2016-12-25 22:30[/i] [align=left][font=宋体]A word of caution before the beginning: I haven't posted anything for a long time. I went back and looked through ...
I have the impression that the principle used by Zener diodes and TVS tubes is that the voltage does not change much in a large current change range. Therefore, a general Zener diode is connected in s...
I have some ferrite beads, MMZ2012 series, 60 ohm, 1000mA maximum current, I want to use it for power supply, but the data sheet of this ferrite bead says that this series is for signal line, can I us...
Recently, I ran an interrupt program on the s3c44b0x board, and it always failed. After considering all the situations, I think the ISR_STARTADDRESS value is a possible error. The source program defin...
0 Introduction
With the development of my country's economy, the number of motor vehicles continues to increase. The growth of existing roads and other hardware facilities can no longer meet t...[Details]
All electronic design engineers and scientists have performed electrical signal analysis, or signal analysis for short. Through this basic measurement, they can gain insight into signal details and...[Details]
Battery life is critical for portable applications. For applications such as smoke detectors, security devices, and thermostats, factory-installed batteries need to last for more than 10 years. The...[Details]
1. Introduction
At present, most lighting equipment still uses traditional energy for lighting. Making full use of solar energy as the energy supply for lighting equipment is of great si...[Details]
Overview:
This paper introduces a method of connecting a CAN-bus network with Ethernet to form a medium-sized remote monitoring/data transmission network.
CAN (Controller Area Network) is ...[Details]
On the afternoon of July 10, Beijing time, Taiwan's largest chip designer MediaTek expects its smartphone chip shipments to grow by double digits in the third quarter of this year, and the company is ...[Details]
Many battery-powered systems require a visual indicator to show when the battery needs to be replaced. LEDs are commonly used for this purpose, but they consume at least 10mA of current. This con...[Details]
0 Introduction
High-precision current source can provide high-precision current supply for precision instruments, and is suitable for automatic measurement tasks of various resistors in semico...[Details]
0 Introduction
Ultrasonic waves
are mechanical waves with a frequency of more than 20KHz, and the propagation speed in the air is about 340 m/s (at 20°C). Ultrasonic waves can be gene...[Details]
Key Points
1. Now, in addition to high-end smartphones and tablets, users also expect to use touch screens in other applications, and they are gradually appearing in cars and instruments.
...[Details]
In industry, voltage 0…5 (10) V or current 0 (4)…20 mA is usually used as a method for analog signal transmission, which is also a method often used by programmable controllers. So what are the dif...[Details]
Direct digital frequency synthesis (DDS) has fast frequency switching and modulation capabilities and is widely used. However, when low power consumption and low cost are the main considerations, D...[Details]
1 Introduction to the overall system solution
The hardware part is mainly used to amplify the sound. When the sound is loud enough, the signal can be introduced into the microcontroller for de...[Details]
LonWorks fieldbus technology is widely used, for example, in intelligent buildings, industrial control, environmental protection, etc. Echelon's LonWorks system has been used in the products of tho...[Details]
Introduction
Temperature and humidity control are widely used in people's production and life. People use thermometers and hygrometers to collect temperature and humidity, and control temperatu...[Details]
stm32/stm8
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