Use the ad835 multiplier to achieve frequency doubling, W=XY, Z is grounded, X, Y are connected together to a 1.8V vpp 100KHZ sine wave, theoretically it should output a 200KHZ sine wave plus a DC com...
A recent statistic from a professional research institute in the United States shows that the ESC (electronic stability control) system helps prevent cars from rolling over. If more cars are equipped ...
Open source small GUI, only two files are needed, gui.c and gui.h1. Resource requirements
Estimated minimum hardware requirements:ROM
13KRAM
2K2. Open source addressOpen source GUI addresshttps://gith...
It turns out that setting up the software environment for ESP32 is a challenge.According to Espressif's official statement, there are two versions of ESP IDE. If you are not doing audio AI, use ESP-ID...
The microcontroller used is TI's Launchpad msp430, the dot matrix is 8*8, and the driver chip is two 74HC595;#includemsp430.hconst unsigned char tab[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};const u...
On September 14, NVIDIA officially announced that it would spend $40 billion (stock and cash) to acquire ARM to build the world's top computing company in the AI era. The core information is as follow...
Most circuits are ground referenced, and lower voltage components can monitor the low side of the load, but not the high side. For example, almost any low voltage rail-to-rail input op amp can sens...[Details]
With the rapid development of modern electronic design methods, EDA simulation technology is increasingly used in actual circuit design. EDA technology first establishes a circuit model and then a...[Details]
Integrated circuit boards are made by using semiconductor manufacturing technology to manufacture many transistors, resistors, capacitors and other components on a small single-crystal silicon...[Details]
DS1991 is a member of Dallas' 1-wire bus information button family, and is an encrypted memory type information button. It integrates 1Kbit non-volatile memory and encryption protection logic, and ...[Details]
Recently, Zhangjiagang City issued the "Ten Measures to Support Enterprises in Maintaining Employment and Retaining Workers and Encourage New Citizens to Stay in Hong Kong for the New Year" (hereinaf...[Details]
Although it is only worth 10 billion US dollars, EDA is crucial to all chip designs. In China, with the rapid development of the chip industry, the demand for EDA has continued to increase. Since 201...[Details]
1 Introduction To learn embedded systems, you first need to learn C language well. I recommend everyone to watch Hao Bin's C language video tutorial. Don't ask me where the video is. Here is a...[Details]
⑴Analysis of system clock principle The clock determines the execution speed of 2440. 2440 can use an external clock source, or use an external crystal oscillator and then obtain the clock frequenc...[Details]
Create a new Keil project, select Samsung's s3c2440 as the device. When asked whether to copy the startup code to the project directory, select Yes. In the Target tab of the project configuration, ...[Details]
Pulse-Width Modulation (PWM) technology is widely used in the field of power electronics. The PWM mode is the basis for determining the output voltage characteristics of the inverter. A PWM mode wi...[Details]
Apple's 2021 spring conference was held as scheduled at 1 a.m. Beijing time on April 21. Cook announced at the online conference that starting from April 30, iPhone 12 and iPhone 12 mini will launch ...[Details]
1 Introduction
CAN (Controller Area Network) is a controller area network, mainly used for field bus of various equipment detection and control. CAN bus is a serial data communication protocol...[Details]
FIG1 is a block diagram of a peak current controlled CCM flyback PFC converter. The controller includes a multiplier and voltage and current comparators.
Figure 1 Schematic diagram of a peak cu...[Details]
Thyristor soft start and voltage reduction principle is a technology that uses thyristors to achieve soft start and voltage reduction of motors or other loads. In this article, we will introduce th...[Details]