STM timer interrupt, why do we need to set the serial port baud rate, what is the purpose of setting the serial port baud rate in the main function?...
Some friends who bought an oscilloscope may be curious about the refresh rate of the oscilloscope and wonder if they can measure it. Compared with the sampling rate, storage depth and other indicators...
Recently, there is a TMS320F2837xx event in the forum. I guess many friends have already bought the board, and some have already warmed up. So what applications and projects do you plan to use it for ...
3X7 matrix keyboard example EINTDriver_3X7KB.cpp based on TQ2440 BSP Please visit: http://blog.mcuol.com/User/iwillbeback008/Article/38507_1.htm But there are some questions: For example, on the keybo...
As the title says, if you want to encrypt the program, it is very convenient to use ISP to directly check the option, but if you want to use ISP mode, you have to set Boot0 to a low level, and after t...
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]
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]
Overview
Lightning is a strong discharge phenomenon that occurs between thunderstorm clouds and between thunderstorm clouds and the earth due to severe convective weather. Lightning is gen...[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]
*This article is based on the author's report at the "Embedded System Association Theme Discussion (Total 22nd) - Current Situation and Development Prospects of Internet of Things Operating Systems...[Details]
In recent years, in order to meet the needs of social development, more and more companies have entered the fields of smart phones, artificial intelligence,
VR
, AR, etc. After seeing the d...[Details]
In January, Android 7.0 Marshmallow surpassed Lollipop three years ago to become the second most used Android version in the world. According to
the latest data from
Google
, a snapshot of d...[Details]
STM32 has 2 watchdogs: independent watchdog and window watchdog. Independent watchdog IWDG: A system fault detector that is independent of the system and is not affected by the system because it has ...[Details]
The calculation formula of the watchdog feeding time (watchdog overflow time) is: Tout=((4*2^prer)*rlr)/40 Tout is the watchdog overflow time (in ms), prer is the watchdog clock prescaler value (...[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]
1. What is PWM What is PWM? Professionally speaking, it is pulse width modulation. In layman's terms, it is the continuous output of high and low levels. For example, the microcontroller outputs...[Details]
;Question requirements: ;Stopwatch timing, press S0 to start timing, and the digital tube will display; ;Press S0 again to stop. If S0 is not pressed to stop after counting for 1 minute, the buzzer w...[Details]
Title: Use two dynamic digital tubes to display from 0 to 60, output from the P1 port of 89C51, without adding a decoder, and directly connect the digital tubes. Note that they are dynamic digital tu...[Details]
Please help me analyze the clock cycles occupied by the following delay program. Seek to explain: DELAY: MOV R6, #13 DELAY1: MOV R5, #250 DELAY2: NOP DJNZ R5, DELAY2 DJNZ R6, DEL...[Details]