The wireless communication devices we use in daily life all contain MAC addresses. MAC addresses are unique. Usually in network communications , MAC addresses are used as device identifiers. MAC addre...
1. Chinese semiconductor device model naming method The semiconductor device model consists of five parts (field effect devices, special semiconductor devices, composite tubes, PIN tubes, and laser de...
The "open" trend in the field of mobile communications is becoming more and more obvious. O-RAN is definitely one of the hottest terms in the mobile communications industry in the past two years. The ...
Qorvo PAC chip is a highly integrated product for three-phase motor control. It can reduce the size and cost of PCB while improving system reliability and shortening system development time. It is wid...
China, October 8, 2021 - STMicroelectronics has launched a new generation of automotive intelligent switch modules, VN9D30Q100F and VN9D5D20FN. These are the first driver chips on the market to add...[Details]
We have previously introduced BYD's latest blade battery, and today we will take a look at BYD's battery integration solution. First, let's sort out the use of BYD batteries in 2019. According to the...[Details]
As an engineer, circuit design is a necessary skill. However, no matter how perfect the principle design is, if the circuit board design is unreasonable, the performance will be greatly reduced, and ...[Details]
1. External interrupt 1.1 Interruptions The concept of interrupts has been mentioned in the previous blog. (Portal: 51 MCU Getting Started Tutorial (5) - Timer Interrupts) An interruption means th...[Details]
Most simple circuits for measuring reactive components cover a limited range of component values. The circuit presented in this article is made up of only a few inexpensive components, but it can meas...[Details]
During the period between the Lesser Heat and the End of Heat, the temperature is the highest, and the weather is humid and hot, which is what we often call the "dog days". Beijing is experiencing ...[Details]
All PLC encryptors have two good reasons.
One is to protect intellectual property rights, and the other is to demand project payment.
Intellectual property protectionists say ...[Details]
With the development of high-speed digital systems, high-speed serial data is widely used, and FPGAs with embedded high-speed serial interfaces are also widely used. The corresponding high-speed seri...[Details]
Figure 2.16 depicts a four-pin dual in-line package device with die leads connected to an ideal logic device. It contains a transmission circuit and a circuit. The transmission circuit is a push-p...[Details]
Probing techniques are very important for high-quality oscilloscope measurements. Probes are usually the first link in the oscilloscope measurement chain. If the probe performance is insufficient, di...[Details]
1. Serial port initialization void usart_init() { SCON = 0x50; //REN=1 allows serial reception status, serial port working mode 1 TMOD = 0x20; //Timer working mode 2 PCON = 0x00; TH1 = 0xFD; //Baud r...[Details]
When we design a single-chip microcomputer circuit, the number of IO ports of the single-chip microcomputer is limited, and sometimes it cannot meet our design requirements. For example, our STC89C52...[Details]
Single-sided In-System Programmable Flash-based microcontroller, 89Sxx series development board
Introduction
I designed this single-sided development board using the MCS-51 ...[Details]
The following is the circuit diagram of the lOW sound and light siren:
As shown in the figure, this is a 10W sound and light siren circuit. This circuit can generate high-intensit...[Details]
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