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* 【Compilation environment】: ICCAVR * 【Function】: Use software query method to send data to AVR using serial debugging software, and AVR sends the data back to PC. * 【Crystal】: 8M ...[Details]
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STM8S related registers Master Clock Status Register (CLK_CMSR) 0XE1 Current HSI is the main clock source (reset value); 0XD2 The current LSI is the main clock source (LSI_EN is 1); 0XB4 The current ...[Details]
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The three major A-share indices closed higher today, with the Shanghai Composite Index up 0.76% to 3,382.32 points, the Shenzhen Component Index up 0.96% to 14,015.02 points, and the ChiNext Index up...[Details]
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Sun visors can also be made high-tech! Add AI technology and say goodbye to sunglasses When it comes to sun visors, everyone is familiar with them. They are very common on cars, and the chance of u...[Details]
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On November 3, the 2020 National Science and Technology Awards Conference was held in Beijing. Academician Wang Dazhong, an internationally renowned nuclear energy scientist, was awarded the countr...[Details]
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There are 4 groups of working registers, each group contains 8 working registers R0~R7. The RS1 and RS0 bits in PSW are used to select which group to use. If no selection is made, group 0 is ...[Details]
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The internal structure of the AT89S51 microcontroller serial port is shown in the figure below. It has two physically independent receiving and transmitting buffers SBUF (special function registers),...[Details]
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5G, as the next generation of communication standard, is being rapidly deployed. Recently at IFA 2020, Qualcomm announced that it will expand 5G support to the Snapdragon 4 series mobile platform. Te...[Details]
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This article introduces a variety of microprocessor MCU and smart card cracking methods: including known non-invasive attacks such as power analysis and noise interference as well as invasive attacks ...[Details]
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According to news on December 19, Tesla has finally taken a big step into the field of wireless charging. Following hints earlier this year, the company has officially confirmed that it is developing...[Details]
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Hardware environment: STM8SF103 TSSOP20 package Because the project needs to use AD to sample the battery voltage, we started using STM8S ADC for sampling, which led to the following. The manual desc...[Details]
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An important application of an oscilloscope is as a tool for debugging problems. Therefore, the ability to quickly find abnormal events is an important criterion for evaluating the performance of an ...[Details]
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Mean Envelope Detector
Figure 5.5-16A is a mean envelope detection filter circuit composed of a crystal triode V and an RLCL low-pass filter. It can be seen from Figure 5.5...[Details]
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Many people have the habit of using different charging heads to charge their mobile phones, but they don’t know that doing so will damage the battery of the mobile phone. Recently, China Mobile Termi...[Details]
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Non-contact temperature sensor is a sensor that uses infrared technology to measure the surface temperature of an object. It has the advantages of fast measurement speed, high accuracy, and no envi...[Details]