ARM7 44b0 uses the vectorless IRQ interrupt mode. I have a question: Which has a higher priority, the external interrupt or the timer interrupt? I read the manual carefully, but I don't understand. Th...
Make a simple expansion board with NTC to measure temperature, MPU6050, etc. Combined with the round IPS, make a small watch based on this expansion board in January.
The specific schematic diagram is...
At the exhibition, an engineer introduced a chip that integrated this function. At first, I didn't quite understand the significance of this technology. Then I looked for some information and found tw...
[align=left][color=rgb(51, 51, 51)]The complete PCB we envision is usually a regular rectangular shape. Although most designs are indeed rectangular, many designs require irregularly shaped circuit bo...
[font=微软雅黑][size=3]I would like to share with you a video of a quadcopter accidentally losing control and breaking through the clouds. What are the possible causes of this situation? [/size][/font] [f...
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]
Using Systick timer to achieve delay 1. SysTick timer characteristics The SysTick timer is a 24-bit down counter, that is, when vlue is decremented to 0, an interrupt is triggered and the load va...[Details]
In the development of artificial intelligence, talent reserve is undoubtedly an important part. Artificial intelligence should be a bottom-level technology that can be deeply embedded in any indust...[Details]
Recently, the "Smart Photovoltaic Industry Development Action Plan (2018-2020)" jointly issued by six departments has put this concept on the forefront. Photovoltaic smart solutions will become the ne...[Details]
The adoption rate of serverless
cloud
computing
is gradually increasing, but it has not yet reached people's expectations. Various surveys show that serverless
is
still
an eme...[Details]
This small program is still the use of timer, which is relatively simple. The specific parts are noted in the comments, please refer to the comments. /*********************************************...[Details]
Different from 51, AVR and other single-chip microcomputers, the clock signal sources of msp430 include LFXT1, XT2 and DCO. 1. LFXT1: It can connect high-speed and low-speed crystal oscillators. In l...[Details]
1 Introduction Due to the special working environment of coal mine production, the production process is more dangerous and unsafe than the general industry. With the continuous increase in c...[Details]
Every era has anxiety that has nowhere to go. Let's follow the embedded editor to learn about the relevant content.
The anxiety of the post-Internet era is that if you don’t revolutionize ...[Details]
Independent watchdog (IWDG) and low power mode are often used in STM32 development. The watchdog is to detect and solve faults caused by software errors, and the low power mode is to enter sleep mode...[Details]
A crystal oscillator can be electrically equivalent to a two-terminal network consisting of a capacitor and a resistor in parallel and a capacitor in series. In electrical engineering, this network h...[Details]
If you do not use an external crystal on the STM32, the connection method of OSC_IN and OSC_OUT If you use the internal RC oscillator instead of an external crystal, please follow the following metho...[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]
environment: Host: XP Development environment: MDK4.23 MCU:STM32F103CBT6 illustrate: Collect AD through pins PA1 and PA2. Collect AD 10 times for each channel. #include "ad_driver.h" //Global ...[Details]
The frequency calculation formula of the PWM wave generated by the output comparison mode of the timer is: 72M/((2*(arr+1))*(psc+1) ) For example, if you set: PWM_Init(1000-1,72-1); (PWM_Init(arr,psc...[Details]
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