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Ookla has just released a list of airports around the world that offer the fastest free Wi-Fi networks in the first quarter of 2022. The analysis focuses on mobile connections for free Wi-Fi pro...[Details]
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The convergence of technologies has enabled system manufacturers to continue to meet user expectations, but it has also put tremendous pressure on R&D and test engineers to test more features while mi...[Details]
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Please check "Target"->"Code Generation" in the MDK (keil) project properties.
选”Use MicroLIB
The premise is that you have a complete Keil project. For example, when debugging ADC, the serial p...[Details]
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With the rapid development of human society towards informatization, the civil air defense system has become an important part of modern national defense construction. Civil air defense refers to the ...[Details]
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Memory controller design based on contemporary DRAM architecture
1. Introduction
Contemporary computer systems are increasingly limited by memory performance. Processor performance increases at...[Details]
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The U.S. space program made history as NASA astronauts Robert Behnken and Douglas Hurley arrived at the International Space Station (ISS) aboard a SpaceX DM-2 Crew Dragon, marking the first time a co...[Details]
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At present, in power supply solutions below 100W, pulse width modulation (PWM) control chips are generally used to realize PWM modulation. The switch control mode has a high working efficiency rela...[Details]
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The selection of high-power LED
lamp beads and
LED
point light sources should be analyzed from the following 9 aspects:
1. LED
brightness
The price of ...[Details]
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When using the serial port of the STC51 microcontroller, sometimes a very strange situation occurs, that is, the program runs dead as soon as it enters. The initialization code is as follows: void ...[Details]
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Let's take a look at the simplest experiment of lighting a lamp. The experiment requires you to use KEY4*4 buttons. Press the button to turn on the light, and lift the button to turn off the light, a...[Details]
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According to Lawstreet, Arendi recently filed a lawsuit in the U.S. District Court for the District of Delaware, accusing LG Electronics of infringing its patent rights with equipment manufactured an...[Details]
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Puzhong 51-Single-core-A2 STC89C52 Keil uVision V5.29.0.0 PK51 Prof. Developers Kit Version:9.60.0.0 Hard Knowledge PWM (Pulse Width Modulation) Excerpted from Baidu Encyclopedia. Fundamental ...[Details]
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#include #include void main() { DDRD = DDRD|0x30; TCCR1A = 0x50; TCCR1B = 0x09; OCR1A = 65535; }
In CTC mode, the relevant registers are: TCCR1A, TCCR1B, OCR1A. The relevant pins are: PD4 and PD5...[Details]
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Because there was a problem with the hardware, that is, the external low-speed crystal oscillator was useless and could not be vibrated. Then I checked the posts on the Internet and found that the ST...[Details]
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1. Preparation of startup documents
$ NOMOD51 ; Ax51 macro assembler control command: disable predefined 8051
; Customize the storage area that needs to be initialized after power-on
...[Details]
Embedded System
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