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1. Serial port configuration 1) First open your project and find USART1 in STM32Cube. The serial port is Disanle by default. We need to enable it and select Asynchronous. 2) Then click Configu...[Details]
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As a widely used test instrument in the field of signal analysis, spectrum analyzer has the main function of measuring the amplitude/frequency response of the signal. It can complete spectrum analysi...[Details]
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ARM7TDMI(-S) has a 32-bit ARM instruction set and a 16-bit Thumb instruction set. The RM instruction set is highly efficient, but has high code density. The Thumb instruction set has a higher code de...[Details]
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The wind intensity of ordinary electric fans is constant, which is not as comfortable as the natural wind blowing in gusts. Here, we use PIC16F84 microcontroller to make a natural wind generator. ...[Details]
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1. LED basic principles and knowledge Figure 1 LED common anode schematic diagram 1.1 The meaning of LED common cathode and common anode The smallest unit of LED is the light-emitting diode. Light-...[Details]
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1. Description Experience in processing various signals is very important! DHT11 temperature and humidity values Each data transmission is 40 bits, including 8 bits of humidity integer, 8 bits of...[Details]
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lab environment:
Host: Fedora14
Development board: Tq2440
Ported Linux kernel version: linux-2.6.30.4
I recently studied the touch screen driver code of S3C2440, which can be regarded as a ...[Details]
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This design uses ARM as the control core, combined with a push-pull boost circuit and an SPWM inverter circuit, to achieve the conversion of 12VDC input voltage into 110VAC AC sinusoidal voltage ou...[Details]
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Common ARM instructions 1: data processing instructions •Data transfer instructions mov mvn mov r1, r0 @Data transfer between two registers mov r1, #0xff @Assign the immediate value ...[Details]
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SRAM Data Memory Figure 10 shows the organization of the ATmega48/88/168 SRAM space. The ATmega48/88/168 is a complex microcontroller that supports more peripherals than the reserved 64 I/Os (acces...[Details]
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In order to rewrite the ARF2496K wireless 2.4G driver, it needs to be ported to the STM32 main control, so I want to simply control the I/O timing to complete this experiment. The first step is to co...[Details]
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As an important tool for obtaining information, sensors play an important role in industrial production, science and technology and other fields. However, with the rapid development of microprocessor...[Details]
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1. Who is the coprocessor?
Coprocessor: A chip that offloads specific processing tasks from a system's microprocessor. For example, a math coprocessor can handle number crunching; a graphics coproces...[Details]
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1 Introduction There have been many studies on the detection and protection of power grid short circuit and line fault. The short circuit, overload and overvoltage protectors on the market ...[Details]
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Single-chip microcomputer is the abbreviation of single-chip microcomputer. It is made by integrating CPU, ROM, RAM, TIMER/COUNTER and input/output interface (I/O) on a large-scale integrated circu...[Details]