Yesterday evening on the STM32 serial DMA problem tangled for a long time, so this morning to write a blog to talk about my understanding of serial DMA transmission. Discuss three issues: 1. What is a serial DMA request; 2. Brief review of the
Continue ReadingSensitive discrete component speaker speaker protector circuit diagram
LC03-3.3 SOP8 TVS Static Protection 3.3V Stadium LED Display The stadium LED screen is ideal for places of with huge crowd. Its high resolution picture and wide viewing angle ensure best quality pictures and videos to every corner of the stadium. Stable
Continue ReadingXiaomi Wang Chuan: Who is going to be the family entrance is the key now has the answer!
Electronic enthusiasts early eight: On July 26, Xiaomi released the AI ​​smart speaker, which not only can link the smart home, far-field voice control, but also train AI to make it more and more intelligent. But before the entry of smart home may belong to the m
Continue Reading"The Jedi survives" official zero tolerance to open or history
Although the game of Jedi survived, the proliferation of plug-ins has caused many ordinary players to complain, and almost every game will encounter a variety of "divines", so that the game experience is extremely poor. Many netizens even started to expect Tencent
Continue ReadingThis afternoon, at the National Engineering Laboratory for Digital Television (Beijing), organized by the Administrative Committee of Zhongguancun Digital TV Industry Park, Beijing Peony Electronics Group Co., Ltd./Innovation Technology Platform and Beijing Peony Technology
Continue ReadingThe precision CNC machine tool industry in China started in the 1960s. After decades of rapid development, the industry scale and technology level have greatly improved. However, compared with foreign-funded enterprises, the overall competitiveness is still a gap. The overall concentration of the
Continue ReadingFilter 18.432M The peripheral circuit of the wheel speed sensor hardware structure with 80C31 single chip as the core has signal processing circuit, bus control and bus interface. After the wheel speed sensor generates a signal, it is filtered, shaped, and optically isol
Continue ReadingFresh air system is expected to promote the development of billion-dollar market regulation
Since the beginning of this year, the growth momentum of China's air purification industry has continued, and the new air system with both air purification and air replacement functions has become a new consumption hotspot. However, the industry believes that the current air purifi
Continue ReadingXiao Bian Note: Double 11 to buy half of the sun lost, # # Sun single contest hot strikes, smashed hands have opened a box! IPhoneX etiquette waiting for you to win, submissions that get extra 100 gold coins, as well as original innovators exclusive rewards, App can light s
Continue ReadingThe IGBT is a voltage-controlled power transistor that you can think of as a high-power version of a CMOS tube. The characteristics are high switching frequency, the main applications of the family such as inverter air conditioner, induction cooker, microwave oven, as well as
Continue ReadingThe sound in nature is very complex, and the waveform is extremely complex. Usually we use pulse code modulation encoding, that is, PCM encoding. PCM converts continuously changing analog signals into digital codes through three steps: sampling, quantization and coding. At pre
Continue ReadingCrystal oscillator Quartz Oscillator 3225 20M OSC >;Oscillator 1MHzR/C ; command clock 250kHz Include Page1macro bsfSTATUS, RP0; page1 Endm Page0macro bcfSTATUS, RP0; page0 Endm cbLOCk0ch Time1,temp Lo_val, hi_val, msn, lsn Digit1, digit2 Count,read Ssav
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