CF-639223-21P

Event: The company simultaneously released its 2017 annual report and the first quarter report of 2018. In 2017, the company achieved revenue of 8.886 billion yuan, a year-on-year increase of 48.01...[Details]

In our common sense, the word technology often has two definitions. The first is the technology sealed in the laboratory. They are like flowers on the mountain top. Only a few people on the mountai...[Details]

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]

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]

I used STM32CubeMX V4.22.1 to generate a project including EHT and Lwip. The debugging has been abnormal. After careful inspection, the following problems were found: 1. The hardware uses LAN8720A, b...[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]

Site conditions: 1. AD acquisition, DMA transmission; AD is set to single-channel continuous mode, DMA is set to single-shot mode. The upper threshold of the AD analog watchdog setting is less than t...[Details]

The first one is a DMA mode of multiple channel acquisition void ADC_DMA_Config(void)  { ADC_InitTypeDef ADC_InitStructure; RCC_HSICmd(ENABLE); while (RCC_GetFlagStatus(RCC_FLAG_HSIRDY) == RESET);  ...[Details]

ORG 0000H LJMP MAIN ORG 0003H LJMP TOINT ORG 001BH LJMP TOINT1 ORG 0030HMAIN: MOV SP,#60H      SETB IT0      SETB EX0      SETB EA      SJMP $TOINT:MOV TMOD,#10H      MOV TH1,#0FEH      MOV TL1...[Details]

The circuit shown in the figure requires that the light is off when the machine is turned on. Press the button once, and the light D1 will turn on and automatically turn off after a delay of 10 secon...[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]

Unfortunately, my serial port has some problems and I can't print information. I can only debug to view variables and see the values. Fortunately, there is not much AD conversion code, and I can use ...[Details]

MSP430 ADC10 single channel multiple conversions #include "msp430x22x4.h"  #define uchar unsigned char  #define uint unsigned int  #define LCDen 0X80; //The upper three bits of P3 are used as cont...[Details]

　　Lithium battery has changed the global industrial layout. With the development of new energy vehicles in China, the development speed of China's lithium battery industry is also amazing. So, what a...[Details]

;**************************************************** ; Key interrupt alarm.dt ;****************************************************  PORT6 == 0x06 ; Define port 6, 7  PORT7 == 0x07 ;----------------...[Details]