ASMD2920-100

　　C8051F320 has a standard USB2.0 controller, which can provide a cheap, simple, and easy-to-develop solution for devices that require a USB interface. I used it in my "Virtual Oscilloscope DIY" proj...[Details]

(1) From the assembly statement, we can see that the interrupt vector table is located at 0x08004000. define symbol __ICFEDIT_intvec_start__ = 0x08004000; One more thing to add: the interrupt vecto...[Details]

Recently, my tutor is going to write a book about SAME4 microcontrollers, and I read this book as a beginner in embedded systems. Now he also asked me to write a few small programs and make some exam...[Details]

1 Introduction With the continuous development of information technology and the increasing popularity of computer applications, high-tech equipment has higher and higher requirements for power suppl...[Details]

Introduction: I recently decided to review AVR microcontrollers, in fact, I also want to review several simple communication protocols, including serial port, SPI, I2C, etc. I thought I could finish ...[Details]

1. Use of working mode 2 Here we will explain the working mode 2 of timer 0, which is to use the "small test tube" method. The initialization of TMOD is "TMOD=0x02;". We know that the longest ove...[Details]

I'm learning how to port uboot recently. I have a long-forgotten MINI2440 development board. The main control chip used in the development board is S3C2440. I checked the uboot version and found that...[Details]

1 Introduction As the number of cars in my country increases year by year, the development of highways makes the speed of cars faster and faster. The traffic volume is also increasing, resulti...[Details]

void call_user_sent()    {        static bit data_flag=0;       static unsigned char a=0,b=0,c=0;       TRISB5=1;       TRISB2=0;       if(!data_flag) //Start header       {              c++;        ...[Details]

DMA is used to connect data transmission between external devices and internal devices. With it, you can bypass the CPU and directly perform data transmission. But at the same time, DMA transmission a...[Details]

No filtering function is added, so the value is a bit shaky   //PCF8591 AVR microcontroller program. By default, it starts with channel 0 in input mode. Channel 0 is  photoresistor ,...[Details]

　　The frequency synthesis system implemented by the DDS+PLL combination can achieve high frequency resolution, fast conversion and a wide frequency range to meet the frequency requirements of various...[Details]

External reset is generated by a low level applied to the RESET pin. When the reset low level duration is greater than the minimum pulse width (see Table 19), the reset process is triggered, even if ...[Details]

According to incomplete statistics, electric shock accidents and fires caused by leakage in my country cause thousands of deaths and billions of economic losses every year. Therefore, higher requirem...[Details]

With the development of modern society and the progress of science and technology, many high-rise buildings and intelligent buildings have emerged. Elevators, as an important means of transportatio...[Details]