[i=s]This post was last edited by Yishayishi on 2022-7-8 08:39[/i]MOV C, P1.1; Read the level on the P1.1 pin
How to use the instruction MOV C, P1.1? There is no instruction MOV C, XX in the 51 assemb...
Taking LVDS signal as an example, the common optimization methods of high-speed signals in PCB design are explained: LVDS (Low Voltage Differential Signaling) is a low-swing differential signal techno...
How do I check the switching frequency of the power MOSFET switch? There are several time-related parameters on the datasheet that seem to have nothing to do with the switching frequency~ What models ...
I have an industrial PC motherboard running WINCE5.0. The board has USB ports and serial ports (cannot be used due to driver issues). I can only install the program on the motherboard via a USB disk (...
After the Led test program is compiled into an executable file, it is sent from the hyperterminal to the development board. The following are the commands in the manual: #echo 0 0.2 > /tmp/led-control...
When compiling, it is often as shown belowThen it seems that the software CCS crashed, and the CPU usage of the entire computer increased greatly, often reaching 100% (my computer is not old, it has d...
1. Overview
Will passive devices
produce nonlinear intermodulation distortion? The answer is yes! Although there is no systematic theoretical analysis, it has been found in engineerin...[Details]
System design is a complex process. It is not enough to just use ICs. There are many details to consider. This article uses a high-fidelity music playback system as an example to introduce how to s...[Details]
In this article, the high-performance DSP developed by TI can be used as an effective confidentiality method if it is applied to PC encryption cards.
As an effective network security solution,...[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]
With the rapid development of urban economy, elevators are increasingly used as a vertical transportation tool. However, elevator fault detection and maintenance, especially the role of elevator remot...[Details]
Editor's note: In order to help technicians or engineers who have knowledge of PIC microcontroller assembly language quickly master the method of using C language to program PIC microcontrollers, t...[Details]
Contact resistance
is the resistance to current flow through a closed pair of contacts. This type of measurement is performed on devices such as connectors,
relays
, and switches. The...[Details]
1 Introduction to HART Protocol
HART (Highway Addressable Remote Transducer), an open communication protocol for addressable remote sensor high-speed channels, was launched by Rosemen in the U...[Details]
LED is the abbreviation of light emitting diode, which is an electric light source made of semiconductor technology. The core part of LED is a chip composed of P-type semiconductor and N-type semi...[Details]
LED lamps and bulbs are now rapidly replacing incandescent, halogen and CFL (compact fluorescent lamp) light sources in many general lighting applications. Flyback DC/DC converters are the power su...[Details]
It is well known to automotive suppliers that automakers are demanding more from their supply base. For connector suppliers, this means stricter requirements for product performance, stability and ...[Details]
According to the Industrial Technology Research Institute of Taiwan, due to factors such as the oil crisis and global warming, the issues of energy conservation and environmental protection have at...[Details]
The era of mobile access to the Internet has arrived, and it will rapidly change the business and infrastructure needs of mobile operators under a whole new trend of requirements. We need 4G LTE to...[Details]
At present, how various communication technologies will evolve after 3G is a focus of great concern in the industry. Especially for TD-SCDMA, whether it can achieve smooth evolution to the next gen...[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]