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#include
#include
#pragma data:code
const table ={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,
0x80,0x90,0xff};
#pragma interrupt_handler int0:2
void int0()
{
PORTC&=~BIT(0);
...[Details]
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Optimized integrated power management chip with built-in protection function to drive MPU and peripherals
October 18, 2024,
China - STMicroelectronics' STM32MP2 microprocessor po...[Details]
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Digital potentiometers are much more reliable than mechanical potentiometers, and can easily guarantee more than 50,000 reliable read and write times, while mechanical potentiometers can only be ad...[Details]
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1 Circuit structure and working principle The main circuit structure of the new variable frequency power supply is shown in Figure 1. D1~D4 are conventional rectifiers, S1~S4 are conventional invert...[Details]
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In recent years, multimedia technology has gradually penetrated into people's lives. MP3 players have become popular portable audio playback devices. Since the MP3 encoding algorithm is very comple...[Details]
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Operational amplifiers are an important part of many analog systems and mixed signal systems. High DC gain is undoubtedly an important design indicator for operational amplifiers. Since operational a...[Details]
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Continuously measuring patient vital signs such as heart rate, respiratory rate and blood oxygen saturation (SpO2) is critical to providing effective care, and the ability to measure these signs simu...[Details]
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0 Introduction
The traditional single-phase boost APFC circuit has been widely used in power factor correction circuits, but this solution requires an independent uncontrolled rectifier br...[Details]
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Please read the instruction manual carefully before using the instrument, and pay special attention to the following points: 1. Generally, the maximum input voltage peak value of the oscilloscope doe...[Details]
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1. Refrigeration power of air conditioner We often say that air conditioners must be of sufficient horsepower to achieve the desired effect. In the calculation of central air conditioners, the co...[Details]
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introduce
The STDES-2KW5CH48V reference design provides charging solutions for industrial light electric vehicles (LEVs), such as e-bikes, e-rickshaws, forklifts, and micro electric vehicles. ...[Details]
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When we first came into contact with the 51 microcontroller, a pull-up resistor must be added to the P0 port, otherwise P0 will be in a high-impedance state. You may be confused about this question,...[Details]
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1 Introduction
With the continuous improvement of the requirements of the defense industry for precision-guided weapons, the increasing complexity of the overall design of weapon systems, ...[Details]
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On October 6, Sony released the ISX038 image sensor, which is used in automotive cameras.
According to the official introduction, the ISX038 image sensor is equipped with Sony's self-dev...[Details]
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Jiwei.com reported on April 13 that yesterday the China Academy of Information and Communications Technology (hereinafter referred to as CAICT) released the domestic mobile phone market operation ana...[Details]
Test/Measurement
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