I built a project using KEIL, and added the files included in the Qingke project to the project one by one. However, the compilation failed, and the prompt was: Error: L6218E: Undefined symbol I2C_Rea...
1. The board has been finished before, so the program is definitely not a problem.
2. The initial test phenomenon is that the 4k stepldr.bn0 file of wince is burned into the first block, and there is ...
After successfully establishing the gprs connection to the gprs master station, I turned on the gprs service. Why did I get an error when I sent at^siso=1? What could have caused the error? Thank you....
My C51 version is 8.12. Now there is a problem. The following program [code] ACC=Data; for(i=8;i;i--) { ACC>=1; SDA=CY; SCL=1; _nop_(); SCL=0; } [/code] Generated code As follows [code] 640: ACC=Data;...
I am working on PN code tracking recently. I have read some papers. In addition to using shift registers to generate PN codes, there is another solution that uses ROM to directly store the calculated ...
A half-fixed ore. Unscrew the plug and see the tinfoil ball. Pick out the tinfoil and find the ore. You can DIY movable ore. Haha! By the way, is the diode in Figure 1 also a fixed ore?...
Emergency hand-held lamps powered by 6V maintenance-free batteries are widely used in rural areas. The charger used is a transformer step-down and single diode half-wave rectifier, and the charging...[Details]
1. Introduction
Since the 1980s, with the continuous development of automotive electronic technology, there are more and more electronic control units in automobiles, such as electronic fuel i...[Details]
1. Introduction to CIF Board
Fieldbus integration based on PC system
Whether it is a master or a slave, fieldbus has won unanimous praise in the field of PC-based automation. For more...[Details]
With the advocacy and implementation of the government's Safe City Plan, the security market has increasingly higher requirements for the clarity of surveillance images. Imagine that after a case o...[Details]
As a simple and practical input device, buttons have been used in various microcontroller application systems and are ubiquitous. However, the buttons used in different practical occasions are also...[Details]
12v Lead Acid batteries used in trucks, cars, RVs and uninterruptible power supplies are usually rated at 12V. This circuit monitors the battery, the charge and discharge curves, gives the cu...[Details]
With concerns about the growing energy crisis, motor efficiency has become an important and timely topic. This is because motors use 63% to 70% of the electricity produced in the United States and ...[Details]
1. Proposal of
reconfigurable
measurement and control system
The measurement and control system generally refers to a system based on
computers
to realize data acquisition a...[Details]
introduction
Steam turbines are driven by high-temperature and high-pressure steam generated by boilers to run at high speed. They are key power equipment in thermal power plants. The emergenc...[Details]
A stepper motor is an electromagnetic mechanical device that converts an electrical pulse signal into an angular displacement or a linear displacement. The stability and reliability of a stepper mo...[Details]
0 Introduction
There are many types of sensors, and the working principles, measurement targets and measurement environments of different types of sensors vary greatly. The corresponding detection s...[Details]
As the global LED market demand continues to increase, my country's LED industry will face huge opportunities in the future. However, the core LED technology and patents are basically monopolized b...[Details]
The demand for improved healthcare environments is endless, so medical imaging equipment with higher resolution is needed to better observe the human body. High resolution brings problems with sign...[Details]
Portable power applications are broad and varied. Products range from wireless sensor nodes with average power consumption of only a few microwatts to in-vehicle medical or data acquisition systems...[Details]
Battery clamps, commonly known as battery connectors, come in two sizes depending on the thickness of the battery terminals. One is the battery clamp used on thick terminals, with a positive termin...[Details]
RF/Wirelessly
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