I set the ADC clock to 9Mhz. My main program uses software delay. How is the software delay calculated? I have never set the clock, but the main frequency is not 72Mhz....
Class Document Source Message Time Date No. [Error] haihua.SchLib Compiler RS422_PAD5_1: Could not find port '5' on model 'Five-core pad RS422' for pin '5' 15:07:07 2009-7-20 1 I have drawn the compon...
[i=s]This post was last edited by jameswangsynnex on 2015-3-3 19:59[/i]Abstract : This paper introduces the embedded communication controller chip MPC850 based on the PowerPC core and the MPEG-4 digit...
1 unsigned char dth_read(unsigned char array[])//Default 16Mhz main frequency, return 1 if successful, return 0 if failed,2 /*array is a 5-byte array, the data format brought back is: one byte humidit...
After the bootloader and umon were burned on the newly installed 2440 core board, the following prompt appeared: Boot ERROR:0x00000008 Boot ERROR:0x00000008...
In this article, the high-performance DSP developed by TI can be used as an effective confidentiality method if it is applied to PC encryption cards.
As an effective network security solution,...[Details]
As LEDs continue to improve in almost every aspect of performance and cost, LED lighting is being used in an increasingly wide range of applications, among which LED street lights are a focus of in...[Details]
In the previous series, we have listed some basic knowledge of C language in Tables 1 to 3. We hope that beginners can strengthen their memory of the above tables and gradually learn to use them wh...[Details]
1. What is temperature?
Heat is a type of molecular motion. The hotter an object is, the faster its molecules move. Absolute zero is defined as the temperature at which all molecular motion ...[Details]
Contact resistance
is the resistance to current flow through a closed pair of contacts. This type of measurement is performed on devices such as connectors,
relays
, and switches. The...[Details]
1 Introduction
Building Automation System (BAS) is a distributed monitoring system (DCS) designed according to distributed information and control theory. It is the result of the mutual de...[Details]
1 Introduction
With the development of control, computer, communication, network technology, etc., a new control technology, namely fieldbus, has emerged in the field of industrial control...[Details]
1 Introduction to HART Protocol
HART (Highway Addressable Remote Transducer), an open communication protocol for addressable remote sensor high-speed channels, was launched by Rosemen in the U...[Details]
Continuity test
A variety of devices need to be checked for continuity, including cable assemblies, printed circuit boards, and connectors to ensure that these components have the expected contin...[Details]
D5026A is a driver IC designed by Shanghai Debei Electronics for energy-saving LED display screens. Its design concept is energy-saving and compatible with existing solutions, that is, it can be ...[Details]
At present, a large number of cooling tower fans, speed fans and special fans are in use in petroleum, chemical, pharmaceutical, metallurgical and other enterprises. Some fans have no monitoring in...[Details]
Our flight had just begun to descend when a gentleman sitting next to me turned to talk to me about engineering—he had seen me reading an engineering journal. The gentleman next to me said that he ...[Details]
1. The composition and structure of mobile phone lithium battery
Mobile phone lithium batteries are mainly composed of plastic shell upper and lower covers, lithium battery cells, protection c...[Details]
Based on the actual situation, a remote intelligent anti-theft alarm device for home use, connected to the telephone line, simple to operate, and stable and reliable in operation is designed. When ...[Details]
Today's automotive application developers face numerous design challenges as modern cars add more electronic functionality, while the need for lower power consumption and smaller printed circuit bo...[Details]
stm32/stm8
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