I used the wizard to generate some chips. Some pins of the FPGA chip are green, some are red, some resistors are green, and some are red. I don't know why it is so weird. What design rules affect it? ...
The most important parts of my alarm are the sensor and the execution part, in addition to the CPU. I chose the MQ-5 sensor. I chose the MQ-5 sensor. I. Overview. The QM-N5 gas sensor is an N-type sem...
The design of the stm32 chip is really disgusting. Here are two simple examples: 1. The USB and CAN interrupts of the STM32F103 chip are shared with the RAM, which makes it impossible to use USB and C...
[i=s]This post was last edited by maoshen on 2014-6-22 13:07[/i] Okay, I come in and vomit,,,,,,I know several friends who drive excavators, loaders, bulldozers, and truck cranes,,,,,,,their income is...
[size=15px]I would like to ask experts to help me find out what kind of tube is used for Q1 in this RF variable attenuator. How small is the model! ! ! ! ! It turns out that this 3-pin tube is used ab...
In early 2002, I started to write a working program for an IC card prepaid electricity meter. The meter used Philips' 8-bit 51-expanded single-chip microcomputer
87LPC764
, and wa...[Details]
introduction
MEMS is a high-tech that has flourished on the basis of integrated circuit production technology and dedicated micro-electromechanical processing methods. Pressure sensors develop...[Details]
With concerns about the growing energy crisis, motor efficiency has become an important and timely topic. This is because motors use 63% to 70% of the electricity produced in the United States and ...[Details]
When developing electronic products with processors, how to improve anti-interference ability and electromagnetic compatibility?
1. The following systems should pay special attention to anti-...[Details]
UDN2916LB is a two-phase stepper motor bipolar driver integrated circuit launched by SANKEN. It can drive dual-winding bipolar stepper motors and is particularly suitable for controlling dual-step ...[Details]
Since the implementation of the self-weight toll collection system, the highway administration has not only high requirements for the vehicle axle recognition rate, but also requires a long service li...[Details]
Improving the coordination of material handling and internal transportation between departments in modern factories is an important measure to achieve full automation of production. Traditional mat...[Details]
1. Introduction
According to the definition of the International Electrotechnical Commission (IEC) and the American Instrument Society (ISA), fieldbus is a digital, two-way transmission, multi...[Details]
1 Introduction
With the rapid development of the national economy, AC motors have played an extremely important role in industrial production. As the main traction motor in various industries,...[Details]
1. Introduction
PROFIBUS is an international, open asynchronous serial communication standard, which is widely used in manufacturing automation and process automation, buildings, transportatio...[Details]
The construction of voltage and current feedback amplifier application circuits is generally the same, except for a few key points.
Current feedback amplifiers have higher sl...[Details]
In order to reduce the proportion of data transmission time in the entire system processing time index, the data transmission rate should be no less than E1 (2.048Mb/s), and the communication...[Details]
In recent years, information technology based on microelectronics and computer technology has developed rapidly, and ultrasonic non-destructive testing instruments have also gained unpreceden...[Details]
1. Architecture and operation of electronic toll collection system
The basic principle of the electronic toll collection system is to enable a special device (on-board unit) installed on t...[Details]
PCB Design
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