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This article is a detailed summary and analysis of C language string operations. Friends who need it can refer to it.
1) String operations
strcpy(p, p1) Copy a string
strncpy(p, p1, n) Copy a s...[Details]
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Interface design: Initialize SDRAM Initialize the memory controller memsetup: mov r1,#MEM_CTL_BASE adrl r2,mem_cfg_val add r3,r1,#52 ldr r4, ,#4 str r4, ,#4...[Details]
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Shanghai Huahong Grace Semiconductor Manufacturing Co., Ltd. ("Huahong Grace" or the "Company"), a wholly-owned subsidiary of Hua Hong Semiconductor Co., Ltd. (stock code: 1347.HK), was recently awar...[Details]
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STM32 serial communication and temperature acquisition are done. The main problem encountered is the clock tree of the STM32 series microcontroller. The serial communication encounters the phenomenon...[Details]
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Yangtze Memory Technologies (YMTC) recently announced that it has successfully developed the latest 128-layer QLC 3D NAND flash memory, which has been verified by several well-known controller compan...[Details]
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Tesla said in a filing with the U.S. Securities and Exchange Commission (SEC) that it had purchased $1.5 billion worth of Bitcoin. Tesla said in the filing that it bought Bitcoin to "enhance flexibi...[Details]
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The independent keys will be regrouped. There are pull-up resistors in front of the button IO ports. Scanning principle: method one: Line-by-line scanning: The matrix keyboard is scanned line by lin...[Details]
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On July 17, MediaTek Dimensity 7350 chip has been released. It is built based on TSMC's second-generation 4nm process, adopts the second-generation Arm v9 architecture, and the CPU main frequency c...[Details]
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Zigbee wireless communication and Linux embedded operating system are often contacted by electronic people. Here we have designed a CMU controller based on the ARM chip S3C2440 as the hardware platfo...[Details]
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0 Introduction
Digital signal processing mainly studies the use of digital sequences or symbol sequences to represent signals, and uses digital calculation methods to process these sequenc...[Details]
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1 Introduction
With the development of science and technology, computer-based measuring instruments, which we often call virtual instruments, are increasingly closely connected with computers....[Details]
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Ethernet is widely used in the fields of PC and data communication. Since the introduction of the 10Base-T standard in 1990, the technology of Ethernet has developed rapidly. Currently, 10M/100M/...[Details]
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0 Introduction
Signal source is an important part of modern electronic system, and has a wide range of applications in communication, measurement and control, navigation, radar, medical and ot...[Details]
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For the hardware design of automobile controllers, the power supply system is a very important component. This article mainly introduces the power supply of sensors, microcontrollers, actuators, an...[Details]
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According to foreign media reports, Ford Motor has applied for a patent with the US Patent and Trademark Office (USPTO) for a lamp with lidar, which may be used in future Ford vehicles. The patent ...[Details]
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