I recently encountered a strange problem. When writing USB devices, I sometimes encounter the following situation: Open the USB device with OVERLAPPED mode, then use WriteFile to write a character to ...
TI's bq27741-G1 is a lithium battery charge detection integrated circuit for a single battery pack. It provides hardware-based overvoltage and undervoltage protection, overcurrent protection during ch...
I have a question now. Please ask everyone how to set the external 5V signal input in ISE. Specifically: using Xilinx-v4 series FPGA, the IO receiving level is 3.3V, and the external input signal is 5...
In the mcs-51 microcontroller: If the instruction "AJMP 45H" is stored in the 0123H unit, the target address is 0123H+45H=0168H. If the instruction is "SJMP 0F2H", the target address is 0123H-0E=0114H...
Is the negative pole in direct current equivalent to the ground? In alternating current, since there is no negative pole, the ground is the neutral line? Or it can be the earth? If I connect the live ...
The Mobile Industry Processor Interface (MIPI) Alliance is an organization responsible for promoting the standardization of software and hardware in mobile devices. It has released the D-PHY specif...[Details]
1 Introduction
With the acceleration of the pace of urban modernization, society has higher requirements for urban road lighting and urban lighting projects. The state has clearly required tha...[Details]
1 Introduction
Ultrasonic waves have strong directivity, slow energy consumption, and can propagate over long distances in a medium, so they are used for distance measurement. Ultrasonic detec...[Details]
This week, Microsoft held its 2012 Microsoft Worldwide Partner Conference (WPC) in Toronto, Canada. At the conference, Microsoft showed its new products and services to partners around the world. A...[Details]
Infrared remote control is widely used in home appliances, but the remote controls produced are not compatible with each other. The universal remote controls commonly seen on the market can only co...[Details]
1 Introduction
Lijia'an Yellow River Diversion Culvert is a large gravity diversion gate in the lower reaches of the Yellow River. The Yellow River Diversion Culvert is located in Lijia'an Vi...[Details]
In the test of the electronic ignition module, in order to simulate the real working conditions of the electronic ignition system, the electronic ignition module is often placed in an environment h...[Details]
The circuit has overcharge protection, over-discharge protection, over-current protection and short-circuit protection functions. Its working principle is analyzed as follows:
1 Normal state
...[Details]
In order to ensure that lighting-grade white light LEDs can not only be well applied but also achieve high utilization efficiency, first of all, it is necessary to meet certain application conditions,...[Details]
Power quality refers to the quality of AC power supplied to the user end through the public power grid. In an ideal state, the public power grid should supply power to users at a constant frequency...[Details]
When we really want to use
the PID algorithm, we find that it is not so easy to implement the code in the book on our 51. Simply put, it cannot be called directly. A careful analysis will r...[Details]
1 Introduction
With the country's vigorous promotion of energy conservation and environmental protection, and the increasing cost of energy supply, more and more users are beginning to pay...[Details]
At present, single-chip microcomputers have penetrated into every field of our lives. It is almost difficult to find a field without single-chip microcomputers. Missile navigation devices, control ...[Details]
At present, the batteries used in mobile phones on the Chinese market have completed the transition from NiMH and NiCd batteries to lithium batteries, but most people still use lithium batteries i...[Details]
Embedded System
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