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There are two main WiFi configuration tools used under Linux system: wireless tools: it mainly configures WEP encrypted WiFi. Now iwconfig and other commands have been replaced by iw. iw is also partially used for WiFi configuration in this article. If you want to know more relevant functions, you can enter iw help in the shell window to view ...

preface    due to the speed limit of bram form, under the same urgent time conditions, we still changed back to the way of axidma to reduce the dimension and attack. For the speed of a few megabytes, there is a feeling of killing chickens with an ox knife. There is no way. The original knife is just a little worse. The ox knife is ea ...

1. Problem background How to use timer on XR809/XR871/XR808/XR872 2. Problem description Timer module is only a small module in the chip. There is no special document to explain in the release document, only the code use case. Some customers will be confused about some parameters in timer after reading the code 3. Solutions The following will ...

Program design of temperature value display of DS18B20 I Characteristics of DS1820 single line digital thermometer • unique single line interface requires only one port pin for communication • simple multipoint distribution applications • no external components required • power supply via data line • zero standby powe ...

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 ...

This article was originally released by RT thread user @ chengjili and is used to participate in the n32g457 RT thread design competition jointly launched by RT thread and national technology. The original text: https://club.rt-thread.org/as...This design is used to participate in the innovation "core" engine - national technology n32 ...

1, The first driver under Linux The drive is divided into four parts: Header file Inlet and outlet of drive module Declaration information Function realization The first step includes the header file 1 #include<linux/init. h> Header file containing macro definition 2 #include<linux/module. h> Header file containing initialization l ...

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 ...

  Catalog 1. Set up GPIO: 2. printf redirection 3. Log information format 4. Personalized Output 5. CubeMX+HAL Open Serial Interrupt 6. Open external interrupt 7. Clock Tree Basic Operations 8. Universal timer configuration 9. CubeMX Configuration Timer (1) Set the timer clock to 72M (2) Select internal clock (3) Configure timer ( ...