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The ground resistance tester is a commonly used instrument for testing and measuring ground resistance. It is also an indispensable tool for electrical safety inspection and acceptance of grounding...[Details]
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German photovoltaic inverter (PCS) manufacturer SMA Solar Technology announced on June 25 that it has introduced a "hybrid energy supply system" test device consisting of photovoltaic power gener...[Details]
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In a 32-bit ARM system, a branch instruction or a PC register load instruction is generally placed in the interrupt vector table to implement the function of the program jumping to the interrupt serv...[Details]
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Aiming at the problem that the electrolytic capacitor in the existing LED driving circuit limits the life, a design method for LED driving circuit without electrolytic capacitor is proposed. This met...[Details]
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Notice regarding the development of automatic opening and closing devices for toilet lids and toilet seats by Nidec Sankyo Nidec Sankyo Co., Ltd. has developed a new slim automatic opening and cl...[Details]
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The basic structure of the 8051 series MCU includes: 32 I/O ports (4 groups of 8-bit ports); two 16-bit timer counters; full-duplex serial communication; 6 interrupt sources (2 external interrupts, 2...[Details]
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_undefined_instruction: .word undefined_instruction ldr pc, _undefined_instruction _undefined_instruction is a label. When processing here, as will place the value of undefined_instruction in 16-...[Details]
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Multi-byte binary division The dividend is 3 bytes, in units 0x20, 0x21, and 0x22, 0x22.7 is the most significant bit and 0x20.0 is the least significant bit. The divisor is 2 bytes, in 0x30, 0x31. A...[Details]
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The PROFIBUS DP communication of S7-1500 can be realized through the CPU with integrated DP interface, PROFIBUS communication module CM1542-5 or communication processor CP1542-5.
The PROFIBUS...[Details]
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As the seasons change, from the beginning of the year to the end of the year, the ubiquitous power Internet of Things is experiencing a spillover effect.
Not long ago, State Grid Corporation o...[Details]
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#include pic.h //流水灯 #define uchar unsigned char #define uint unsigned int __CONFIG(0x3B31); void delay(uint x) { uint a,b; for(a=x;a 0;a--) for(b=110;b 0;b--); } void main() { uchar i,temp; TRI...[Details]
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Because MC9S12G128 has internal flash and eeprom, it does not need to use sci for communication. The flash and eeprom of MC9S12G128 are managed together, so the access method is the same, but the a...[Details]
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According to foreign media reports, Minoru Kikuoka, the new CEO of Japan Display Inc. (JDI), a supplier of screens for Apple's mobile devices, recently said that smartphones equipped with OLED screen...[Details]
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Abstract: This article discusses the principle, design method and several issues that should be paid attention to in the development of resonant transformers, and proves the accuracy and practic...[Details]
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The function of the serial port is to receive and send data. In the previous section, we have learned about the pin signals of the serial port. However, the sending and receiving of data requires c...[Details]
FPGA/CPLD
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