Recently, I used stm32f407 to make a project of audio transmission after decoding mp3 from sd card. The sound card chip used was VM8978, i2s of SPI3 was adopted, and the DMA used was stream5 channel 0...
I just entered the power supply circle. During my internship, I did push-pull. I boosted 18~36V to 450V for stabilization. I added an inductor at the back end, but the spike was very large. I added an...
First, I will make a remote control device. I need to use the materials. I don't know how to use the two. Is it the same as the general connection method? Or are they paired with each other? Thank you...
I have a program that uses an ATmega16 microcontroller. I want to collect external signals through 74hc165, but I can't do it. Can anyone give me some advice? I used the ICCAVR compilation environment...
When PB4.2 downloads the wince system image, the DNW settings should be fine. When using the network port to download, I always cannot find the available network port device when configuring Target->c...
A state machine needs to be saved when power is off. You can program the flash, but it is more troublesome. Are there any special registers that are free?...
A ventilator is an instrument that can replace or assist a person's respiratory function. It is suitable for artificial respiration of patients with respiratory failure or even respiratory arrest. I...[Details]
The U.S. Food and Drug Administration (FDA) points out that home health care is the fastest growing area in the medical device industry. Driven by the increase in average life expectancy, the increasi...[Details]
Ultrasound systems are among the most sophisticated and complex signal processing instruments in widespread use today. Like any complex instrument, there are many trade-offs to be made in implement...[Details]
Digital-to-analog converters (ADCs) provide the critical conversion of analog signals to digital signals in many systems. They perform amplitude quantization of an analog input signal to a binary fini...[Details]
Implantable Cardivoerter Defibrillators (ICDs) have been in common use for several years. ICDs apply a high voltage pulse between two electrodes connected to the heart, which detects cardiac fibrillat...[Details]
This article introduces a miniature home electrocardiograph. The instrument has powerful functions: display monitoring, storage, playback, printing, record management, power alarm, telephone or Intern...[Details]
Basic principles of simulation
Simulation is a technology used in the field of embedded system development. It can bring system developers the controllability and visibility needed to integra...[Details]
To ensure the success of China's TD-SCDMA network commercialization, operators and equipment suppliers need to conduct a large number of tests on networked equipment, among which RF testing is...[Details]
introduction
In engineering practice, ultrasonic waves are often used to measure distances because of their strong directivity, slow energy consumption, and long propagation distance in th...[Details]
introduction
Every friend who has been in contact with PC since the 286 era must have deeply experienced the convenience brought to our lives and work by the leaps and bounds of comput...[Details]
1 Introduction to suction laminating machine
Suction laminating machine is a kind of woodworking machinery, which can realize the laminating function of wood boards and other materials. It i...[Details]
With the improvement of social automation, human-computer interaction capabilities urgently need a major change, and develop in a direction that is more convenient to use and more intuitive. Laser ...[Details]
AD8205 is a single-power high-performance differential amplifier launched by Analog Devices, Inc., USA. The typical single-power supply voltage is 5V, and its common-mode voltage input r...[Details]
As process nodes and die sizes continue to shrink, the number of consumer electronic products using flip-chip packaged IC devices is increasing. However, flip-chip packaging manufacturing rules hav...[Details]
Abstract: This article introduces several floorplanning techniques for sub-65nm chip partitioning. These techniques help us complete a practical floorplan in a relatively short time, including: ana...[Details]