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Encoder programming is based on STM32F407IG, and the pre basic knowledge is timer input capture. Detailed explanation of principle The types of encoders include incremental encoder, absolute encoder and hybrid absolute encoder. This experiment uses incremental encoder The schematic diagram of the basic encoder is shown in the figure below. Ro ...

Origin of the problem In the process of writing STM32 OTA program, I was confused about the implementation of the first word storage stack top address and the second word storage interrupt vector table in FLASH. I was not sure at which stage of the program these two addresses were fixed in FLASH. After querying the data, I found that they were ...

The system tick timer is a peripheral that exists in all m3 cores, but the number of other timers in m3 cores is different. Therefore, the system tick timer is generally used as the system time base, which is also convenient for the transplantation of RTOS in different chips. 1. Configure tick timer On the graphic page of cubemx, you ...

preface Display unit is the most important output device in embedded engineering and electronic products. 16x2 LCD is one of the most commonly used display units. 1602 LCD indicates that there are two lines, each line can display 16 characters, and each character occupies 5X7 matrix space on the LCD. In this paper, we connect 1602 LCD modul ...

STM32 timer input capture STM32F429 is used as a timer to capture the PWM waveform, and the cycle, frequency, duty cycle and forward pulse width of the waveform are measured. Basic principles The input acquisition of timer is mainly to measure the frequency, pulse width, duty cycle and other information of input signal. You need to understa ...

catalogue Monitor introduction Liquid crystal display Basic parameters of display Liquid crystal control principle Introduction to ILI9341 LCD controller Signal line and 8080 timing of LCD FSMC of STM32 is used to simulate 8080 interface timing Introduction to FSMC Memory controller Clock control logic FSMC analog 8080 timing Softwa ...

STM32 learning from scratch @EnzoReventon SPI read / write FLASH Related links: Introduction to SPI physical layer and FLASH chip SPI protocol layer SPI features and architecture reference material: [wildfire EmbedFire] practical guide for STM32 Library Development -- Based on wildfire Decepticon development board [punctual atom] STM32F4 Dev ...

preface The previous learning is divided into several modular knowledge points. The learned knowledge needs to be combined for practice, and the comprehensive and flexible application ability of the learned MCU knowledge is more investigated. (the writing is relatively basic. If there is any error, please correct it) task requirement LE ...

01 overview NB-IoT NB IOT (Narrow Band Internet of Things) is a narrowband Internet of things technology based on cell, which supports low-power devices to connect cellular data in low-power wide area Internet of things (LPWAN). LWM2M protocol The full name of LwM2M is lightweight machine to machine. It is a lightweight protocol formulate ...

More exchanges, welcome tiktok, 81849645041 objective Understand internal memory and external memory, and realize the dynamic management of memory. principle Memory management refers to the technology of allocating and using computer memory resources when software is running. Its main purpose is how to allocate efficiently and quickly, and ...