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1. The ARM system CPU has the following 7 working modes: 1. User mode (usr): normal program execution state 2. Fast interrupt mode (fiq): Process fast interrupts and support high-speed data transmiss...[Details]
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On January 21, Tongyu Communications released its performance forecast, stating that the company expects its net profit attributable to shareholders of listed companies in 2020 to be 70 million yuan ...[Details]
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The world emits 51 billion tons of greenhouse gases into the atmosphere every year. To solve the climate crisis, we need to cut that number in half by 2030 and reach zero by 2050. For electricity g...[Details]
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The cable fault tester is an important tool for the power department to maintain the normal operation of the cable. It helps power workers quickly find the fault point and eliminate the fault in ti...[Details]
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In the official history of the MSP430 microcontroller, there are programs that use serial port interrupts to send characters and strings, but the portability is not high. I have written two functions...[Details]
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In the past year, humanoid
robots
have become the focus of attention, and many companies have lined up to launch their own humanoid products. Most of them have a typical humanoid appearance...[Details]
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In the current embedded application development process, C language has become the best choice for most occasions. In this way, the main function seems to be the natural starting point - because C pr...[Details]
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SFR定义:
sfr P5 = 0x85; /* PORT 5 */
位寻址定义:
sbit st_rs = P5^0;
编译错误:
*** ERROR C146 IN LINE 320 OF C8051F020.H: 'P5' invalid base address
KEIL FAQ:( http://www.keil.com/support/do...[Details]
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S3C2440 Chip Manual Introduction https://blog.csdn.net/qq_28258885/article/details/111461640 This time we will light up another LED, so read the chip manual first. This time configure LED2, Then we...[Details]
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Code: /* C language example 16 Question: Input two positive integers m and n, find their greatest common divisor and least common multiple. Program analysis: (1) The least common multiple = the pro...[Details]
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Note: This article is an advanced version of the experiment of controlling the sound of a buzzer with a 51 single-chip microcomputer. It is similar to the previous experiment. The previous experiment...[Details]
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On May 10, the official website of the Beijing Securities Regulatory Bureau released information stating that at the beginning of 2021, Lenovo Holdings was randomly selected as the subject of on-site...[Details]
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"Temperature" is a common and very important control parameter in various industrial control productions. People have developed various automatic temperature control systems for different control obj...[Details]
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On February 26, as early as 2019, Samsung and AMD officially reached a multi-year strategic cooperation, and the two parties will seek more development in the fields of ultra-low power consumpt...[Details]
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Power supply measurement of electronic devices usually refers to the measurement of switching power supplies (of course, there are also linear power supplies). There are a lot of materials about switc...[Details]