The MCS-51 microcontroller has a full-duplex serial communication port inside, namely the serial receive and transmit buffer (SBUF). These two physically independent receivers and transmitters can bot...
Achieve goalsRealize the ability to decode and play simple music using a buzzer as a playback device.It has a loop list, can switch between the upper and lower tracks in real time, pause and start in ...
[i=s] This post was last edited by littleshrimp on 2019-2-27 19:04 [/i] LPS22HB data sheet:LPS22HB application notes:LPS22HB official evaluation board gerber files:LPS22HB schematic library:LPS22HB PC...
In PADS, the VIA Stitch is grayed out. I have set the Via Patterns in Options, but it still remains grayed out. Can anyone tell me what is going on? I am using PADS 9.3, a cracked version.
Thank you f...
[align=left]The trade-in of old instruments has begun! Keysight is calling you to exchange for new network analyzers[/align][align=left][font=微软雅黑][size=3] [/size][/font][/align][align=left][font=微软雅黑...
Overview :
There are two main topologies of non-isolated DC-DC power supplies that are most commonly used in our onboard power supplies: BUCK and BOOST. Inductance is a key parameter. This article bri...
Use hardware-accelerated mask testing to complete waveform testing for compliance with specific standards in seconds instead of hours Engineers use oscilloscopes to test and evaluate a variety of d...[Details]
As 5G technology matures and 5G smartphones become more popular, the radio frequency system that is responsible for sending and receiving radio electromagnetic waves for mobile phones and other termi...[Details]
Overview This document analyzes the underlying transmission process of the CAN bus when developing the SylixOS CAN bus driver on the AT91SAM9X25 platform. Suitable for technical engineers who are l...[Details]
In fact, it is a self-excited push-pull DCAC boost converter circuit, which consists of a freewheeling diode, a damping inductor, two PNP transistors, two base resistors, a resonant capacitor and a t...[Details]
There are several types of short-time working of motors
1. Short-time work system
The motor is powered on for a short time, and stops working before the temperature rise reaches a stable ...[Details]
The JM5540 power adapter uses a standard USB interface as its output socket. It can directly provide power for digital devices powered by the USB interface, and can also be used as a charger through ...[Details]
The 30 kV precision high-voltage stabilized power supply
for the new electron beam exposure machine is introduced
. The power supply system adopts a dual closed-loop adjustment scheme combin...[Details]
On May 27, Alibaba Cloud released the latest medical security solution and storage gateway solution to help medical institutions solve difficult problems such as "data security" and "long-term st...[Details]
At present, the inverter power supply powered by batteries generally consists of two stages. The front-stage DC/DC circuit converts the battery voltage into a DC voltage of about 350V, and the rea...[Details]
When the STM32 serial port is enabled for interrupt, the CPU will continuously enter the serial port interrupt service function when the serial port is unconnected (i.e., no peripherals are connected...[Details]
How does a laser rangefinder work? Laser rangefinders generally use two methods to measure distance: pulse method and phase method. The process of pulse method distance measurement is as follows: the...[Details]
Huabei announced the official launch of the "Spring Festival Travel Interest-Free Installment Plan". After users search for "Spring Festival Travel" on Alipay to receive Huabei's interest-free instal...[Details]
A recent patent application by Apple shows that they are researching a new display technology - combining E-Ink, LCD and touch screen to form a "sandwich" screen. Its advantages are self-evid...[Details]
According to feedback from netizens at IT Home, Xiaomi Mi 6 has made new progress in flashing Ubuntu Touch recently. Developers have brought new updates to the Ubuntu version of Xiaomi Mi 6, includin...[Details]
01
Information security requirements
This chapter mainly introduces the information security requirements from four aspects: hardware security, system security, communication security, an...[Details]