I use STM32 to read external RTC (8025), IIC communication, the host sends 0x64, and then starts to read. Through the oscilloscope, the data I send is correct, 0x64 + read flag = the data sent should ...
When using stm32F407 + lwip-1.3.1 communication without an operating system, suddenly the return value of udp sending data is always = ERR_IF; This ERR_IF is explained by an error in the underlying ne...
[font="][size=11.0pt]Almost every embedded device has a debugging serial port. In some scenarios, it is inconvenient to connect to the PC with a physical cable, and a wireless connection is required. ...
I am planning now,,, basically considering Beijing, Chengdu, Chongqing, Hunan,,, I am a Shanghai native,,,,,,,,, I have a house in Shanghai,,,,,,,,,...
We have a WinCE platform with Hive registry. Customers use the installation package to install software on the platform. During the installation process, the registry will be written, the relevant fil...
I have embedded LINUX and use a four-wire resistive touch screen. Now I have a problem. When I use the test program to read the value, the data of a certain area in the upper left corner of the touch ...
Recently, the first Digital China Summit was held in Fuzhou, attracting many domestic ICT industry giants to participate in the exhibition. The long queues outside the venue, the noisy and exciting...[Details]
Dong Yang, executive vice president of the China Association of Automobile Manufacturers, said on the 26th that according to the authorization of the Ministry of Industry and Information Technology...[Details]
The global PV inverter market will shrink from $6.3 billion in 2017 to $3.7 billion in 2022 due to falling prices, according to GlobalData.
Global PV Inverter Market Value to Shrink to $3.7 Bil...[Details]
1. Purpose In actual product release, if the program stored in the MCU Flash is not protected, some illegal companies may read the program in the Flash through an emulator (J-Link, ST-Link, e...[Details]
In the actual project development process, it is common to encounter modifications to the hardware circuit, and then the modified part requires the modification of the driver. Thinking about the comi...[Details]
1. Initial understanding of FSMC: FSMC consists of 4 modules: (1) AHB interface (including FSMC configuration register) (2) NOR flash memory and PSRAM controller (when driving LCD, LCD is like a PSRA...[Details]
Security PPP is a new model of urban video surveillance projects: 1) The government and social capital establish a project company in a certain proportion; 2) The project company participates in the ...[Details]
Nowadays, everyone is saying that "technology is people-oriented". The essence of the development of technology is to serve the improvement of the quality of life of human beings. Automated driving...[Details]
This program uses the eight-channel ADC single acquisition mode. According to the configuration, ADC12SC will automatically reset after the conversion is completed in the single mode, so it is necess...[Details]
The adoption of vehicle tracking systems for cars and fleets is increasing. Modern trackers have reduced form factors and increased functionality to support active data transmission for real-time tra...[Details]
The ZTE incident has aroused people's concerns about the future of Chinese chips, and they have been using WeChat and Weibo to express their views; the Chinese display industry is also worried abou...[Details]
When STM32 uses JTMS (PA13) and JTCK (PA14) as normal I/O ports, add the following code before initialization (the order cannot be reversed): RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE); G...[Details]
1. Common knowledge about DMA. 1. Function: to achieve high-speed data transmission between chips. That is, it can achieve data transmission without occupying the CPU. 2. Mode: There are three tran...[Details]
The following is a 16-way multi-channel ADC acquisition circuit diagram and source program made using the STM32 microcontroller. It uses a USB interface to connect to the computer, which is actually ...[Details]
Note: This STM32 microcontroller is the STM32F103 series. The ADC of Stm32 has DMA function. This is beyond doubt and is what we use most! However, if we want to sample a signal (such as a pulse sign...[Details]