I wrote a minidriver for a HID USB device, but I don't know how to get data from the device when processing IOCTL_HID_READ_REPORT. My idea is to send a URB to the underlying driver, so should I use Us...
I would like to ask you a question: I am using FL2440 and doing QT experiments. How long does it take to set up the embedded graphics development environment for the experiment? I have never been expo...
I don't know what the differences are between the mail system on PC and the mail system on WM in terms of program code and sending and receiving processes. Please give me some advice from an expert....
Q: I would like to ask you about offset and gain adjustment. A: Generally, you do not need to adjust them unless you have to. There are two methods to choose from: (1) Use easy-to-use equipment, compo...
1. Principle 1. Infrared emission protocol There are many infrared communication protocols. This experiment uses the NEC protocol. This protocol uses PWM modulation and uses pulse width to represen...[Details]
CMSIS Driver has similar API functions and similar calling methods. It is a further encapsulation based on the ST HAL library. It is much more convenient and simpler to use and configure than the ST ...[Details]
Today, under the guidance of a low-level expert, I learned how to configure the PWM module! Woof! First open the file configured last time, as follows: Then, we need to use TIM1 to set PWM: Then,...[Details]
The photovoltaic inverter is the core equipment of the photovoltaic system. Its main function is to convert the direct current generated by the photovoltaic modules into alternating current that meets...[Details]
Superconductors have physical properties such as zero resistance effect, Meissner effect and Josephson effect, which make them have broad application prospects and unparalleled advantages in many b...[Details]
1. FSMC Brief FSMC, the Flexible Static Storage Controller, is capable of interfacing with synchronous or asynchronous memories and 16-bit PC memory cards. The FSMC interface of STM32 s...[Details]
Notes on inverter installation and maintenance:
1. Before installation, you should first check whether the inverter is damaged during transportation.
2. When selecting an installa...[Details]
Mixed reality (augmented and virtual reality) is the next computing frontier after the PC in the 1970s, the web in the 1990s, and mobile platforms in the 21st century.
MR
is the most unique...[Details]
Recently, the National Development and Reform Commission announced that all foreign equity restrictions in the automobile industry will be lifted in the next five years. At the same time, as subsid...[Details]
The CAN of the STM32 ordinary chip has 14 filter groups (the interconnected type has 28 filter groups) to filter the received frames. Each filter group includes 2 configurable 32-bit registers: CAN_F...[Details]
The basic command syntax of EMC is actually only 57/58. How to change it depends on your practice. However, it is always easy for novices to fall into some misunderstandings, and some of the techni...[Details]
Embedded System
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