Does STM32 need CPU to be involved continuously when writing SPI flash? I mean, can the CPU do other work when writing SPI FLASH, such as ADC.In fact, this is the main summary of my other question." A...
The program running under xpe needs to realize the function of no mouse and no keyboard. It runs normally when the mouse is plugged in. After unplugging the mouse, the mouse cursor on the screen disap...
1. The equipment is a constant pressure PID control system for the water supply pump in the hot water heating boiler room;
2. During debugging, it was found that the system pressure was controlled at ...
void main(void) { int t; Init_CLK(); uint ch[8] = {0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80}; Init_Port(); t=KeyScan(); P5DIR=0XFF; P5OUT=ch[t]; while(1); } After using while, the output of P5 is corre...
The NRF2401 program I found online cannot be transmitted, but I set a variable anywhere at random and then ++ it, and it can be transmitted. What is the conflict in this case?...
Compiling on evc4 resulted in 96 mcomp_wmmx.asm(371): error A0051. I downloaded armasm.exe from the arm website (http://www.arm.com/support/downloads/info/14778.html) and copied it to Microsoft eMbedd...
Traditional broadcasting systems generally need to be operated manually at a fixed time, and can only realize one-way broadcasting with few functions. Traditional bell ringing equipment has a singl...[Details]
In
circuit design,
current
measurement
is widely used, and the main fields are divided into three categories: in measurement,
the electric meter
is used to measure the curre...[Details]
1. Circuit composition
The whole circuit consists of two parts:
1. Power saving control circuit
As shown in the figure below. Including delay circuit and drive circuit.
(1) Delay ci...[Details]
Today, with the increasing integration of functions, mobile phones can also be used as portable media players (PMP), digital cameras, handheld computers (PDAs), and even global positioning systems ...[Details]
1. Introduction
With the growth of parking demand, the scale of parking lots is becoming larger and larger. A lot of research has been done on intelligent parking lots in China, but most of th...[Details]
introduction
Throughout the history of automotive lighting, power has always played an important role. Initially, cars only needed headlights to see the road in the dark. Later, other light so...[Details]
Converged processors meet scalability requirements
In current embedded system design, solutions based on MCU, DSP, FPGA and ASIC account for more than 90% of the market share. These solutions ...[Details]
Introduction
Power subsystems are becoming more and more integrated into the overall system. Power systems have moved from being separate "essential dangerous devices" to being monitorable...[Details]
With the rapid development of urban economy, elevators are increasingly used as a vertical transportation tool. However, elevator fault detection and maintenance, especially the role of elevator remot...[Details]
1. Principle of displacement angle sensor
The angle sensor is used to detect angles. It has a hole in its body that fits the LEGO axle. When connected to the RCX, the angle sensor counts once ...[Details]
Instrument stepper motor
The stepper motor is an open-loop control element that converts electrical pulse signals into angular displacement or linear displacement. In the case of non...[Details]
LED is the abbreviation of light emitting diode, which is an electric light source made of semiconductor technology. The core part of LED is a chip composed of P-type semiconductor and N-type semi...[Details]
General LED lighting has a current limiting resistor in the driving circuit, and the power consumed by the resistor has nothing to do with the LED light emission. In order to improve efficiency, a...[Details]
In recent years, with the rapid development of the information industry, dot matrix LED display screens have been widely used in various advertising and information display systems such as the fina...[Details]
With the advocacy and implementation of the government's Safe City Plan, the security market has increasingly higher requirements for the clarity of surveillance images. Imagine that after a case o...[Details]
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