I tried to query the serial port data but failed. The code is as follows:void GetStr(void){UART3_CR2 &=~ MASK_UART3_CR2_RIEN; //Disable interruptwhile(UART_Time){if(UART3_SR & MASK_UART3_SR_RXNE){UART...
Multi-pin plug-in components on multi-layer boards usually have compact pins, so it is difficult to clean thoroughly with desoldering tools and desoldering tapes, and hot air guns cannot be used at hi...
As the title says, I recently bought a serial port to network module LSD-S2E21-01 on Taobao. I just started to tinker with it and I am looking for friends to study and communicate with.PS: The hardwar...
When transmitting data in MODBUS RTU format, how can we determine the start and end? Is it determined by 3.5 characters? How can we achieve this? Please give me some advice!!! Thank you!!...
The distributed algorithm made a filter, the coefficient word length is 21 bits, and there is a CIC pre-filter in front, but I saw some articles saying that a DC removal filter is needed to eliminate ...
Complaint: Same university, same pain (same experience as millions of homeless people in universities across the country)In 2007, I studied at a second-tier university in a second-tier city (it took m...
With the promotion of the construction of intelligent communities in the country, anti-theft systems have become essential equipment for intelligent communities. Especially in recent years, the urg...[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]
Instrument stepper motor
The stepper motor is an open-loop control element that converts electrical pulse signals into angular displacement or linear displacement. In the case of non...[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]
VP2188 is a color STN LCD module produced by Jingdian Pengyuan. This module is a dot matrix transmissive color STN display screen with a color scale of 65 k colors and white LED backlight. Its core...[Details]
Capacitance Measurement
Used to verify that capacitors meet the manufacturer's specifications. For quality control, a group of capacitors may be placed in an environmental chamber and the cap...[Details]
At very low temperatures, certain metals and alloys lose their resistance to electric
current
and become
superconductors
. Two parameters that are often measured are the transition ...[Details]
OC faults may be the most frequent and the most frequent of all faults in the inverter. They alarm during the startup process, during the shutdown process, during operation, and even when powered o...[Details]
We know that the inverter consists of two parts: the main circuit and the control circuit. Due to the nonlinearity of the main circuit (switching action), the inverter itself is a source of harmoni...[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]
Introduction
Automakers are working to reduce vehicle weight to reduce CO2 emissions and improve fuel efficiency. Designers are therefore seeking new technologies and design techniques that can...[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]
Preface
In recent years, white light LEDs have gradually replaced incandescent bulbs and fluorescent lamps because they have unparalleled advantages over traditional light sources in terms...[Details]
1 Introduction
Ultrasound refers to elastic vibration with a frequency higher than the audible frequency limit (i.e., in the frequency band above 20 kHz). The propagation process of this vib...[Details]
0 Introduction
With the rapid development of social economy and science and technology, electric locomotives, subways and electric vehicles will be widely used. The power conversion and cont...[Details]
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