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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]

I used the bit definition in my 51 program: bit flag. After defining it this way, I ran the program and downloaded it to the circuit board. I found that the flag was not the value I set, which led to...[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]

The Vatican Secret Archives is one of the world's greatest historical collections, but many of its documents have never been transcribed. Recently, a project called Codice Ratio used a combination...[Details]

Interrupts and timers implement a 24-hour clock. The program is as follows: #include reg52.h   #define PORTLEN P0   sbit bit_select = P2^0; sbit seg_select = P2^1;   unsigned char src = {0x3f,0x06,0...[Details]

Because the 12232F display is commonly used, but what we usually see are some parallel port assembly programs, and there is no parallel port program corresponding to 12232F, and the serial port C51 p...[Details]

While mobile phone and semiconductor companies have released their second quarter 2017 financial reports, the global PC industry has also released its corresponding financial reports. As a ...[Details]

1. Regarding the EOS bit, this bit is a setting bit, not a status bit. That is, if this bit of the control register of the conversion result register is set to 1, it means that the conversion channel...[Details]

As expected, after Huawei officially released Kirin 970 at the IFA 2017 exhibition on September 2, the world's first mobile AI chip instantly became the focus of heated discussion inside and outsid...[Details]

Remap In stm32, some ports' peripherals have been used by other pins. In this case, port remapping is needed to solve the problem, which is very convenient. Take USART1 as an example  The steps fo...[Details]

1. Hardware Connection SD_CS connects to PD2 of STM32 SD_MOSI connects to STM32's SPI2_MOSI SD_MISO connects to STM32's SPI2_MISO SD_SCK connects to STM32's SPI2_SCK The SD card holder i...[Details]

STM32F4 uses three different clocks to drive the system clock (SYSCLK)     HSI oscillator clock (internal clock)     HSE oscillator clock (external clock)     PLL clock (phase-locked loop clock) Thes...[Details]

The success of CT in the field of medical diagnosis has made CT more widely used. In recent years, industrial CT has relied on computer tomography technology and advanced measurement and analysis sof...[Details]

"Fast" should be the first feeling of many people after using SSD. This "fast" is not only reflected in the speed of turning on and off the computer, but SSD will give you a refreshing feeling in a...[Details]