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First, in the previous example, add the dma.c file to the dev folder, and then add it to the Makefile in that directory:
This is the framework. Next, open dma.c to implement it:
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This paper introduces a method of using the interrupt function of a single-chip microcomputer and a peak sampling circuit to detect the peak value of an eddy current sinusoidal signal. This method ...[Details]
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Today’s system designers benefit from the significant investments made by system-on-chip (SoC) designers in chip-level power management. But for systems that actually consume very little power, syste...[Details]
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On March 16, OnePlus founder and CEO Pete Lau announced a brand new OnePlus brand. Liu Zuohu said that OnePlus will launch a new brand visual system soon. Since its establishment in 2013, On...[Details]
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When I was studying Chapter 9 and Hardware Communication in "Linux Device Drivers (3rd Edition)", I was not very clear about the concept of IO bus, so I looked for relevant information. Now I summari...[Details]
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Electromagnetic interference ( EMI ) is a part of our lives. Over time, the presence of both intentional and unintentional EMI radiators can wreak havoc on circuits. The signals from these radiato...[Details]
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ORG 0000H //Assembly start address NUMB EQU 30H FONT EQU 31H INT: MOV NUMB,#00H; The number to be displayed is sent to the NUMB unit MOV R2,#04H START: MOV A,NU...[Details]
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Frequency domain design is a simple indirect design method for a large class of automatic regulation systems such as switching power supplies. This method can make the designed switching power...[Details]
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South Korea's three major telecom companies have invested a lot of money to build 5G networks and attract 5G users. Although their previous revenue performance was not good, the Korean Securities Ind...[Details]
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Kodak Alaris information management solutions have once again received industry acclaim and were named "Trendsetting Product Portfolio" by KMWorld magazine. The magazine is an authoritative busin...[Details]
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MCS-51 has 17 control transfer instructions, which are divided into four categories: unconditional transfer instructions, conditional transfer instructions, subroutine call and return instructions, ...[Details]
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According to Jiwei.com, at 2 pm today, Ren Zhengfei said in an interview with Nicholas Negroponte, a columnist for Wired magazine, and George Gilder, an American writer, thinker, futurist and economi...[Details]
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High-frequency fatigue monitoring of metals based on acoustic emission technology
This paper uses acoustic emission technology to monitor the expansion of cracks in metal materials under high-frequ...[Details]
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On March 11, Mao Weiming, Chairman and Secretary of the Party Committee of State Grid Corporation of China, conducted a video survey on the resumption of work and production of NARI Group, XJ Group...[Details]
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UART Overview Universal Asynchronous Receiver and Transmitter (UART) Working mode: serial, full-duplex. Only 3 wires are needed: TXD (transmit data), RXD (receive data), GND. Data transmission proc...[Details]