The company (Guangzhou) I work for now has limited room for development. I haven't been promoted in 6 years, and my salary hasn't increased. I used to be a bit stupid (I value dedication and loyalty i...
I want to make a USB disk filter driver. First, I read the device descriptor of the USB disk, and then disable the USB disk according to a certain item in the device descriptor. Thanks to everyone's h...
Today I saw the STM32 remote upgrade solution that uses GPRS for remote upgrade. Now I have used the process on the Internet to set up serial port IAP. First, burn the bootloader firmware on the devel...
As the title says: Please compare: What is the difference between [b]#define uchar unsigned char[/b] and [b]typedef unsigned char uchar[/b], and what are the advantages and disadvantages?...
I think there is something wrong with the installation of the meter in this circuit. It should be installed on the branch of resistor R4.
The meter is ready-made, and any current within 1MA can be rea...
This book is written by analog electronics master Li Lian (Fudan University). It is very thorough and explains in detail the design, principle and application of op amps. You will definitely regret it...
Recently, the U.S. Department of Commerce announced that it would prohibit companies in the country from selling any electronic technology or communication components to ZTE, a Chinese communicatio...[Details]
When talking about Chinese chips, Ni Guangnan is indispensable. Let’s learn more about the relevant content with the embedded editor.
Since he co-founded Lenovo in 1985, Ni Guangnan has been s...[Details]
Profit growth of 85% in 2017, target revenue of 12.5 billion yuan in 2018: The company released its 2017 annual report, achieving revenue of 8.886 billion yuan, a year-on-year increase of 48.01%; prof...[Details]
Designing for automotive LCD displays larger than 5" can be complex. The display source driver requires a supply rail called analog voltage device drain (AVDD) in the 10V to 15V range and two supply ...[Details]
In order to strengthen the management of new energy vehicle charging facilities in our city, prevent and reduce accidents, protect the lives and property of the people, and improve the public safet...[Details]
For STM32, there are two ways to reset the software: 1) Use the official software library The system reset function is directly provided in the stm32f10x_nvic.c file of the official software li...[Details]
1. Photovoltaic inverter installation process
1. Preparation before installation
Are the product accessories, installation tools and parts complete? Is the installation environmen...[Details]
LAN8720 configuration: IP: 192.168.192.30 Gateway: 192.168.192.1 A high frequency of ARP packets is detected The content of the packet asks for the mac address of 192.168.192.1, and asks the resp...[Details]
The day before yesterday, another mainland technology company submitted a prospectus to the Hong Kong Stock Exchange. The company is called "Jia Nan Creative (hereinafter referred to as 'Jia Nan')"...[Details]
Using the WWDG of STM32F030, it is found that the MCU will not be reset under STOP, just like the sleep mode of STM8S. Paste the watchdog code: /******************************************************...[Details]
The independent watchdog of STM32 is driven by a dedicated internal 40Khz low-speed clock, that is, it is still effective even if the main clock fails. Here we need to note that the clock of the inde...[Details]
I encountered a problem when debugging the STM32 system clock setting: TIM2 timing 1Ms, TIM2 interrupt service function time++, LED state changes when time=100. After the program runs, I found that t...[Details]
Timer Interrupt The timer function of STM32 is very powerful. There are advanced timers such as TIME1 and TIME8, general timers such as TIME2~TIME5, and basic timers such as TIME6 and TIME7. In th...[Details]
One addend is in the on-chip RAM 40H, 41H, 42H units, the other addend is in the on-chip RAM 43H, 44H, 45H, and the sum is stored in the 50H, 51H, 52H units, with the carry bit stored in 00H. Please ...[Details]