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 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...
A novice is learning DSP and using a classmate's software. After installing it, for some reason a message pops up asking for a repair license, so the software cannot be opened.So I need help from you ...
There are usually two ways to save energy, either to find cheap and clean energy or to use products with less energy consumption. This energy-saving street lamp combines the two ideas. It is driven by...
CPU: S3C2440 OS: Linux Question: How to implement soft reset in embedded Linux based on ARM9 platform? static void arch_reset(char mode) { ... if (mode == 's') { cpu_reset(0); } ... } Simply putting c...
1. What is temperature?
Heat is a type of molecular motion. The hotter an object is, the faster its molecules move. Absolute zero is defined as the temperature at which all molecular motion ...[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]
Printed circuit boards ( PCBs
)
are used in most electrical products
. If a PCB has low
insulation resistance
(IR), the performance of the circuits on the PCB will be greatly reduced...[Details]
Problems such as the depletion of natural resources, air pollution, traffic congestion, and rising fossil fuel prices have forced societies and individuals to seek alternative means of transportati...[Details]
Motors, especially those with brushes, generate a lot of noise. This noise must be dealt with if the appliance is to meet the requirements of EMC standards. The means to solve EMC are nothing more ...[Details]
With the rapid development of cities and the improvement of citizens' living standards, the number of various vehicles in cities is growing, and the demand for parking spaces in major commercial an...[Details]
At present, a large number of cooling tower fans, speed fans and special fans are in use in petroleum, chemical, pharmaceutical, metallurgical and other enterprises. Some fans have no monitoring in...[Details]
LED is the abbreviation of the English word. Its main meanings are: LED = Light Emitting Diode, a solid-state semiconductor device that can convert electrical energy into visible light. It can dire...[Details]
Electric bicycles have long been a means of transportation for lower-income groups due to their affordability. The largest concentrated expense in the use of electric vehicles is the cost of replac...[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]
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]
1. Introduction
With the rapid development of computer technology, communication technology, and integrated circuit technology, the large-scale application of field control instruments and equ...[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]
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]
In the past 20 years, although the inverters that use power transistors (GTR) as inverter power devices, 8-bit microprocessors as control cores, and realize asynchronous motor speed regulation acco...[Details]
FPGA/CPLD
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