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Phapano ke efe lipakeng tsa serial ports le parallel ports?

2024-09-27 09:02:48

Kajeno re tla bua ka phapang lipakeng tsa serial port le parallel port. Bobeli ba serial port le parallel port ke li-interfaces tse tloaelehileng tsa khomphutha, tse sebelisetsoang ho hokahanya lisebelisoa le likhomphutha, empa ho na le phapang e kholo lipakeng tsa tsona.

1. Kou e bapileng ke eng?

Parallel port ke khutsufatso ea segokanyimmediamentsi sa sebolokigolo. Boema-kepe bo bapileng ba likhomphutha tsa indasteri bo sebelisa sehokelo sa 25-pin se nang le sebopeho sa D. Seo ho thoeng ke "parallel" se bolela hore likotoana tse 8 tsa data li fetisoa ka nako e le 'ngoe ka mela e bapileng, e le hore lebelo la phetiso ea data le ntlafatsoe haholo, empa bolelele ba mohala oa phetisetso e bapileng bo lekanyelitsoe. Hobane bolelele bo eketseha, tšitiso e tla eketseha, 'me data e tla ba le liphoso. Hajoale, sebopeho se tšoanang se sebelisoa haholo joalo ka boema-kepe ba khatiso, jj.

2. Kou ea serial ke eng?

Sebaka sa serial se boetse se bitsoa serial communication interface, kapa COM port. Ho latela litekanyetso le liprothokholo tsa motlakase, likou tsa serial li kenyelletsa RS-232-C, RS-422, RS485, USB, joalo-joalo.

3. Phapano ke efe pakeng tsa tse peli?

1. Likou tsa serial le li-ports tse tšoanang li sebelisoa mekhoa e fapaneng ea ho fetisetsa data. The serial port ke sehokelo sa phetisetso hanyenyane-hanyane se romellang data komporong kapa sesebelisoa se seng hanyane ka hanyane. Mokhoa ona o ka netefatsa ho ts'epahala ha phetiso ea data, empa lebelo la phetisetso le lieha. Boema-kepe bo tšoanang ke sebopeho sa phetisetso se ts'oanang se ka romellang likotoana tse ngata tsa data ka nako e le 'ngoe, kahoo lebelo la phetisetso le potlakile, empa le ameha habonolo ke tšitiso.

2. Likou tsa serial le likou tse bapileng le tsona e fapaneng ka lisebelisoa le maemo a sebelisoang. Hangata likou tsa serial li sebelisoa ho hokahanya lisebelisoa tse ling tsa lebelo le tlase, joalo ka bahatisi, modem, joalo-joalo Lebelo la bona la phetisetso ea data ha le phahame, empa ho ts'epahala ha phetiso ea data ho hlokahala hore e be holimo. Likou tse tšoanang li atisa ho sebelisoa ho hokahanya lisebelisoa tsa lebelo le phahameng, tse kang li-hard drive, li-drive tsa optical, joalo-joalo, tse hlokang lebelo le phahameng la phetisetso le palo e kholo ea phetisetso ea data, empa li na le litlhoko tse tlaase bakeng sa ho tšepahala ha phetiso ea data.

3. The mahokelo a mmele ea likou tsa serial le likou tse bapileng le tsona li fapane. Hangata likou tsa serial li sebelisa li-interface tsa DB9 kapa DB25, ha likou tse tšoanang li sebelisa li-interface tsa DB25 kapa li-port pins tse tšoanang. Ntle le moo, likou tsa serial li ka sebelisa li-interface tsa USB bakeng sa phetiso ea data.

4. Qetello

Ho na le phapang e kholo lipakeng tsa likou tsa serial le li-port tse tšoanang ho latela mekhoa ea phetisetso ea data, maemo a ts'ebeliso, le lihokelo tsa 'mele. Ka hona, ha u khetha sebopeho, u lokela ho khetha sebopeho se nepahetseng ho latela litlhoko tse khethehileng tsa kopo.

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