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ARM processor working mode
User mode user
Fast interrupt mode FIQ
External interrupt mode IRQ
Privileged mode supervisor
Data access abort mode abort
Undefined instruc...[Details]
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Qinghai Oilfield actively promotes energy revolution and strives to promote green transformation and high-quality development. It has built the first ground photovoltaic project in the oilfield in rem...[Details]
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R1
1.5K ¼ W
R2,R3
0.1 Ohm 10 W
R4
270 Ohm ¼ W
R5
680 Ohm ¼ W
...[Details]
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Huawei Mate 40 Pro and Porsche Design have been in short supply since they went on sale. Although the price of the domestic version is much lower than the overseas version, as a flagship model, its p...[Details]
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Objective: Understanding EEPROM-IIC bus (I) 1. Introduction to IIC bus IIC (Inter-Integrated Circuit) bus is a two-wire serial bus developed by PHILIPS, which is used to connect microcontrollers an...[Details]
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Circuit principle: 12V power supply is taken out from the car cigarette lighter socket, and sent to the input pin of the adjustable three-terminal voltage regulator LM317 through SW1A, one of the ...[Details]
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Recently, foreign media reported that Huawei plans to become one of the top five PC manufacturers in the world by 2021. If this news is accurate, it means that 2019 and 2020 will be an important part...[Details]
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With a "ding dong" sound, the big words "Data import completed" pop up with a fresh and pleasant prompt tone, making the curved screen mobile phone's natural high appearance even more colorful. "Yo...[Details]
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In 2021, the automobile market faced great pressure due to a series of shocks such as the spread of the global epidemic, lower consumer expectations, and global supply chain risks. However, China's a...[Details]
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Recently, a project used STM32. In order to make PCB wiring more convenient, some pins were changed, which occupied PA15 and PB3 of the JTAG interface, so JTAG had to be disabled and the download was ...[Details]
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The world's automobile industry has entered the new energy era. Pure electric products with "three electrics" as the core are changing the basic definition of traditional "three major parts" for fuel...[Details]
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Google's Russian subsidiary will file for bankruptcy, the company said it could no longer keep the branch. The Russian branch reportedly had revenue of 134.3 billion rubles (about $2.086 billion) in ...[Details]
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1. The design problem uses the P1 port of 8051 as the input and the P0 port as the output, and connects 8 LED analog branch controls through 74LS244. When P1.0 is low level, one LED lights up; when P...[Details]
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On September 27, Saiwei Semiconductor announced that the "8-inch MEMS international foundry line construction project" invested and constructed by the company's holding subsidiary is now officially p...[Details]
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NC machine tools and CNC machine tools are two different types of CNC machine tools, and they have some differences in function, structure and application.
Definition and Principle
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DSP and ARM Processors
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