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start.S source code: .globl _start _start: // Hardware related settings // Peri port setup ldr r0, =0x70000000 orr r0, r0, #0x13 mcr p15,0,r0,c15,c2,4 @ 256M(0x70000000-0x7fff...[Details]
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Solution 1: STM32F103 has some functions that 407 has, and the pins of these functions are completely compatible, only the programs are different. . . STM32F407 has some functions that 103 may not ha...[Details]
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On March 26, the Xiongan New Area Energy Internet Standardization Pilot Project was officially launched. The pilot project will aim to build a "Chinese brand" in the field of international standard...[Details]
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#include STC89C5xRC.H int main() { char buf; TMOD = 0x21; //Set the working mode of timer1 SCON = 0x50; //Set serial communication format TH1 = 0xE6; //Set the initial value of timer1 TL...[Details]
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The power supply bureau system development and application project is a scientific and technological project of the X Power Supply Bureau. In order to ensure the normal operation of the system, a...[Details]
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In ARM, there is a hardware part called WATCH DOG. This hardware is always doing one thing: starting from a certain value, it keeps counting, subtracting one at a certain time, and then subtracting on...[Details]
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Recently, Apple released the entry-level 13-inch MacBook Pro, and the MacBook Pro without Touch Bar has officially said goodbye to us. After the product was released, many people were very interested...[Details]
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Through IAP, users can use the on-chip Flash as a non-volatile data storage to store some device configuration information, which not only saves costs but also reduces the area of the circuit board...[Details]
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A VGA distributor is a control device that distributes computer or other VGA output signals to multiple VGA display devices or projection display systems. It is a device that specializes in distri...[Details]
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Remote Keyless Entry (RKE) systems allow the user to lock or unlock the vehicle's doors using a transmitter on the key fob that transmits data to a receiver inside the vehicle (See: Remote Keyless En...[Details]
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When installing
the optical terminal,
you must take protective measures on site to prevent moisture, water and dust. At the same time, pay attention to the actual operation on site. You...[Details]
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On September 7, the General Administration of Customs announced my country's import and export situation in the first eight months of this year. According to customs statistics, in the first eight m...[Details]
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Many people who like to watch the fun never dreamed that Chang Cheng, who wanted to make Xiaomi tremble and had been fighting against the other party for a year in 2018, actually joined Xiaomi. Moreo...[Details]
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Online spectroscopy market application Online spectrometer systems (including various secondary development detection instruments) are widely used, covering almost all areas of the national economy. ...[Details]
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I have used Qemu to run/debug arm linux several times, but I forgot about it after a while. I had to look up the information again every time, which wasted a lot of time. This time I made the whole...[Details]
Analog electronics
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