Programming VIP

Series articles UCOSii startup process and platform related document analysisPriority algorithm and kernel source code analysistask managementtime managementEvent control blockmemory management Inter task communication and synchronization preface In fact, more than a year ago, I had the idea to write the sour ...

Overall thinking According to the relevant data, if the acceleration is divided into three directions: X, y and Z, the Z axis is perpendicular to the ground, and the X and Y axes are parallel to the ground, the acceleration in the Z axis direction is about equal to the gravitational acceleration g under normal conditions; In case of falling be ...

Key scan Design requirements By means of key scanning, press key_ Press the user1 (KEY1) key to turn on the LED_GREEN, press again to turn off the LED_GREEN; Press key_ Press the user2 (key2) key to turn on the LED_YELLOW, press again to turn off the LED_YELLOW. Basic knowledge The front LED light controls the GPIO output, and the key ...

1. Basic principles In fact, driving the LCD is to write data to the LCD display memory. The place where 1 is written is displayed, and the place where 0 is written is not displayed. The reverse display is just the opposite; Since the video memory is distributed in 128 columns and 64 rows, it is also called 12864 liquid crystal. 2. Basic char ...

STM32+W5500 network communication Board: STM32F103C8 Module: W5500 Transplantation system: uc/OS-III Compiler: keil & stm32cubemx Burning tool: FlyMcu 1, W5500 & demos 1. W5500 Ethernet module Niren_W5500 module is an Ethernet module based on WIZnet W5500 chip, which is the successor of clay figurine electronics Nir ...

Because the Keil interface looks old, the functions of code prompt and automatic formatting are not very easy to use. In order to beautify and standardize our code, here is a development method using MinGW+GNU Arm Embedded Toolchain+Makefile+OpenOCD. Of course, the editor is also a powerful VSCode 1, Required tools First of all, we need STM ...

1, Serial port transmission file Two ttl to usb interfaces are used to connect the two computers Using serial communication assistant 1. Select file 2. 115200 baud rate file transfer 3. 19200 baud rate file transfer The higher the rate, the higher the file transfer efficiency and the less time it takes 2, Chinese character overlay di ...

I Theoretical overview Introduction to W5500 Ethernet module: Niren_W5500 module is an Ethernet module based on WIZnet W5500 chip, which is the successor of clay figurine electronics Niren_W5100 module is an Ethernet module with better performance and higher cost performance. Module integrated hardware TCP/IP protocol: internal 32K byt ...

SPI This article shows STM32 SPI Transfer The content involves: SPI byte data analog output independent write cache read and write Identification of USART serial port IO port input / output External interrupt processing of key 32-bit data communication, string communication, single character communication Full code: : GIT source code ...

I Introduction to W5500 Ethernet module Niren_W5500 module is an Ethernet module based on WIZnet W5500 chip, which is the successor of clay figurine electronics Niren_W5100 module is an Ethernet module with better performance and higher cost performance. Module integrated hardware TCP/IP protocol: internal 32K byte memory as TX/RX Cache: suppo ...