My embedded product uses DM9000a. I can ping it with one computer (occasionally with packet loss). When I switch to another computer without power failure, sometimes I can ping it, sometimes I can't. ...
The chip used is 413,and the TA1 capture mode is used to measure the frequency period from the P1.2 port. The buttons are used on the test board to simulate the pulse signal to be tested. It is found ...
[code]case HOST_ENUMERATION:/* Check for enumeration status */if ( USBH_HandleEnum(pdev , phost) == USBH_OK){/* The function shall return USBH_OK when full enumeration is complete *//* user callback f...
FF0000 and 880000 are both red. What is the difference between these two reds?Another question is, are reds of different saturations pure red, or are they mixed with other colors?...
[i=s] This post was last edited by Qinheng USB MCU on 2017-10-23 10:58 [/i] [postbg]2.jpg[/postbg][p=30, 2, left][b][font=微软雅黑]Hello everyone, recently some netizens who participated in the forum acti...
The problem of dynamic sealing of equipment always exists with the operation of the equipment. Today, we have specially sorted out the various commonly used sealing forms, usage scope and character...[Details]
Flip-chip and ball grid array (BGA) are two widely used packaging technologies in the electronics industry. Each has its own advantages and limitations, and in some cases, they can complement each ...[Details]
As the number of cars increases, environmental pressures are also increasing. At this time, some people are saying that new energy vehicles are energy-efficient and environmentally friendly, and ar...[Details]
According to foreign media reports, BMW has just been granted a patent for a screen that could cover the entire roof. BMW hopes to transform at least a portion of the vehicle's headliner into a dis...[Details]
A pure sine wave inverter has a good output waveform with very low distortion, and its output waveform is essentially the same as the AC waveform of the mains power grid. In fact, the AC power prov...[Details]
In camera and display systems, the demand for high-performance and low-power data interfaces is driving continuous technological evolution. The evolution of MIPI D-PHY and MIPI C-PHY clearly ...[Details]
Today, the voltage of electronic products continues to rise to 400V, 600V and even 1000V, so there are few electronic load models that can handle such high voltages. Many people consider connecting...[Details]
With rapid economic development, the types of pollution sources are increasing, especially in chemical and industrial zones and their surroundings. The patterns of pollution and the types of ecolog...[Details]
Generally not, but there are exceptions. For example, a torque motor controller with three-phase output voltage imbalance can cause current imbalance, similar to a phase loss. However, only two pha...[Details]
Anyone who has driven a pure electric vehicle will find that it starts much faster than a fuel vehicle. So why do pure electric vehicles start so quickly?
We all know that an engine's to...[Details]
The power battery is a crucial component for vehicles, determining its lifespan and range. According to national regulations, when the capacity of an electric vehicle's power battery drops below 80...[Details]
What is the difference in response time when the output uses cyclic refresh and direct refresh?
The time required from when the PLC receives an input signal to when the PLC outputs a con...[Details]
Function (FC) parameters
Functions do not have data memory in which to store the values of block parameters. Therefore, when calling a function, all formal parameters must be assigned actual p...[Details]
The functions are still useless. When will it be able to be clearly distinguished from smartphones?
Most consumers categorize their smartwatch purchases as a desire to try something new. A sig...[Details]
With the global penetration rate of new energy vehicles projected to exceed 45% by 2025, and the industry's transformation entering its second half, the era of intelligentization, LiDAR has rapidly...[Details]