Let me share some information about the general configuration of IO pins when STM32 is in low power state.
1. Configure unused GPIO inputs as analog inputs
A GPIO always has one input channel, which c...
STM32 uses an internal oscillator. When debugging the code that used to work, I found that it always died in the HAL_RCC_OscConfig function of the stm32f0xx_hal_rcc.c file. The following code was repe...
Preface
I have never used silicon chips before, and I know nothing about this brand. I remember it was a gecko logo. I was lucky enough to participate in the review this time, so I started to understa...
Question 1: When performing trigonometric operations, which method is faster? I am currently using cossp in c67fastMath downloaded from the official website, but the time it takes is about six times t...
Torque motor features
The characteristics of torque motors are that they have soft mechanical characteristics and can be stalled. When the load torque increases, the speed can be automatically...[Details]
1 Introduction DC vacuum melting is a process that must be used for rare and precious metals and high-grade alloy steels. The equipment supporting this process is generally divided into two parts...[Details]
Experimental tasks
A DS18B20 is used to form a temperature measurement system. The temperature measurement accuracy reaches 0.1 degrees. The temperature range is between -20 degrees and +50 de...[Details]
Regarding the design of the sound cavity of the speaker, we basically stay at a concept without a complete set of theoretical guidance. The sound cavity design we know is often understood as follow...[Details]
Abstract: This system introduces the driving and protection technology of IGBT in 30kVA inverter power supply. The requirements for IGBT drive circuits are put forward, and Mitsubishi's IGBT driv...[Details]
By interleaving the outputs of a pair of Johnson counters, a 19-stage continuous counter is obtained.
This design proposal presents a practical method for cascading two or more Johnson counter...[Details]
After last quarter's financial report exceeded Wall Street expectations, AMD recently took advantage of the victory to release a new 7-nanometer chip, which caused analysts to raise their target stoc...[Details]
With the promotion and popularization of electric vehicles, many families own electric vehicles. People are paying more and more attention to the battery replacement technology of electric vehicles...[Details]
Delay is a must-learn application for beginners of microcontrollers! 1. Preface In the previous lesson, we have already realized the lighting of a lamp, but in many cases, the execution of the pr...[Details]
Simply put, AC-AC inverters require too many components and are difficult to control, while AC-DC inverters use fewer components and are easier to control, so most inverters currently use AC-DC-AC ...[Details]
There are many ways to communicate between the microcontroller and the PC. The following program mainly uses the asynchronous serial communication of the 51 microcontroller.
1.51 MCU serial communi...[Details]
Transformer winding machine is a special equipment used to wind transformer coils. In the production process of transformer coils, winding equipment is divided according to the voltage level or capac...[Details]
brief introduction This article introduces how to use Bluesuite's Bluetest3 to put the CSR8350 into the AUDIO LOOPBACK test and directly output the MIC's input audio from the SPEAKER. test tools MD...[Details]
MAX630-based step-up converter with automatic frequency shift
As shown in the figure, a low-voltage frequency-shifted step-up converter is constructed using the low battery voltage detection fun...[Details]
In order to meet the application of a certain micro-power instrument and improve safety performance, a design scheme for an ultra-low power lithium battery management system is proposed. The scheme...[Details]
Analogue and Mixed Signal
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