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STM32 uses FSMC to read and write CPLD programs. CPLD is hung on the address line and data line of STM32. CPLD is regarded as an off-chip RAM for reading and writing. On the board I made, CPLD is hun...[Details]
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Basics By changing the frequency of the waveform output by the microcontroller pin, the tone of the buzzer can be adjusted to produce sounds with different timbres and tones. By changing the duty...[Details]
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What do you think of when talking about mobile phone manufacturers’ offline stores? Apple Store? Xiaomi Store? Or OPPO's flagship store? Since Xiaomi's great success online and the rapid r...[Details]
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Detailed explanation of 8051 microcontroller instruction definition - (ACALL addr11)
Symbol Description
Symbol Description
← ...[Details]
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Introduction
The commonly used IGBT driver modules are
TLP250
and EXB841/840 series driver modules. However, in the development process of DC/DC converters for fuel cell city buses,...[Details]
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Port control description (see S3C2440 data sheet for details)
Port Configuration Registers (GPACON to GPJCON)
Port Data Registers (GPADAT to GPJDAT)
Port pull-up registers (GPBUP to GPJUP)
...[Details]
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Symptoms of a three-phase motor missing phase
A three-phase motor phase loss means that one phase of the three-phase power supply is missing, causing the motor to not work properly. The follow...[Details]
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The unique low voltage and micro power consumption characteristics of liquid crystal display devices enable them to be directly combined with large-scale integrated circuits to develop a series of pro...[Details]
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In the past, many manufacturing companies thought that the "flexibility" of production lines was just an option. Even if a production line could only produce one product, as long as the product sold ...[Details]
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Pin definition of serial port:
9-pin signal direction from abbreviation description 1 Modem CD Carrier detection 2 Modem RXD Receive data 3 PC TXD Send data 4 PC ...[Details]
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The core of temperature control is temperature measurement. Using platinum resistance to measure temperature is an effective high-precision temperature measurement method, but it has the following ...[Details]
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/******** Experimental driver 74HC595 chip******** MCU model: ATMEGA48PA /********** 74HC595 level logic *************************** SI SCK SCLR RCK OE Output pin X X X X H QA--QH O...[Details]
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1 Introduction UCOSII is a ROM-based, scalable, preemptive, real-time multitasking kernel with high portability. It is particularly suitable for microprocessors and controllers and is a real-time o...[Details]
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The essence of a transformer is to transfer energy, and it can achieve voltage increase or decrease. We can imagine a transformer as a water pump, which can transfer water from a low place to a high...[Details]
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When beginners are faced with circuit diagrams with dozens or even hundreds of components , and their connections are crisscrossed and varied in form, they often feel overwhelmed. How can they easily...[Details]
Power technology
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