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1. The physical structure of the interface is differentThe RS232 interface comes in the form of 9 pins (DB-9 or 25 pins...
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RS232 communication interfaceThe Electronic Industries Association (EIA has set up an asynchronous transmission standar...
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TTL level serial port is the input and output of the serial port of the general chip, which can complete the peripheral...
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1. The number of interface pins is different, the number of rs232 interface pins is mostly 9 pins and 25 pins, and the n...
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The same situation, just solved, first to say the key, open the device manager, my COM1 is the line of RS232. How: Unplu...
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characteristic1. Few signal cablesThe RS-232 bus defines 25 lines, consisting of two signal channels, namely the first c...
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rs - 232...
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RS232 is a serial communication interface standard commonly used to connect computers and serial devices, such as modems...
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The rs232 protocol was developed in 1970 by the American Electronics Industry Association (EIA in collaboration with Be...
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The method is...1 To determine whether the chip is normal, see the block diagram of MAX232, use a multimeter to measure...
