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For 52 single-chip microcomputer, there are 6 interrupt sources, which are described as follows (the serial number is used for writing interrupt programs): Interrupt source name Default Level Seria...[Details]
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1. Instrument Model SR830 Lock-in Amplifier 2. Fault phenomenon The instrument can be turned on normally but cannot measure data 3. Testing process According to the customer's description, the inst...[Details]
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When evaluating the grade of a speaker, auditory experience is an important part, which is commonly known as the sound quality experience. There are many ways to improve the sound quality, su...[Details]
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The bare metal environment has been built. How can bare metal debugging be done without interrupts? S3C6410 has a hardware interrupt controller. Unlike 2440, you need to calculate the offset addr...[Details]
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Apple today released Safari 15.1 beta for macOS Big Sur and macOS Catalina, allowing developers to test Safari updates before they are released. Safari 15.1 is also the version of Safari available in...[Details]
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Tom's Hardware reports: AMD has shown a keen interest in photonic technology, which means that the company's semiconductor products will be blessed with incredibly fast data communications. In 2020...[Details]
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NXP Semiconductors recently announced the launch of the QN9090 and QN9030 Bluetooth 5 SoCs, which support 802.15.4, multi-protocol RF and NFC. The latest additions to the QN series of Bluetooth low e...[Details]
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The passband is used to measure the amplification ability of the amplifier circuit for signals of different frequencies. Due to the presence of reactive elements such as capacitors, inductors and j...[Details]
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STM8S003F3 has three timers, namely 16-bit advanced timer TIM1, 16-bit general timer TIM2 and 8-bit basic timer TIM4. Among them, TIM1 and TIM2 support PWM output. In this project, two channels TIM1-...[Details]
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According to a recent report released by Boston Consulting Group (BCG), if major global semiconductor players all establish a completely self-sufficient local supply chain, the overall price of semic...[Details]
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3 Design of compensation filter As can be seen from Figure 3, the amplitude-frequency characteristic curve of the CIC filter is not flat in the passband, and the signal is attenuated in the passband....[Details]
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I finally had time to update recently. I spent a few days to make a little thing. Although there are many ways to implement it circulating on the Internet, I have never tried it. While I have time, I...[Details]
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This is a super cheap charger I bought before the New Year. I bought it because I needed a non-intelligent charger. The workmanship of this charger is quite neat, and the battery clip is also good....[Details]
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code show as below:
#include reg51.h
#include intrins.h
typedef unsigned char BYTE;
typedef unsigned int WORD;
typedef bit BOOL ;
sbit rs = P2^0; //
sbit rw = P2^1;
sbit e...[Details]
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With the continuous improvement of people's living standards and the development of intelligent home appliances, the smart home appliance market will continue to accelerate in the future, and t...[Details]
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