Kodi Com-doko? The chipangizo, Com-doko kasamalidwe

Com-doko, kapena doko siriyo ndi bidirectional siriyo mawonekedwe, limene lakonzedwa kuti kuwombola mamvekedwe deta. Kwa nthawi yoyamba, doko ntchito kulumikiza osachiritsika ndipo kenako modemu, ndi mbewa. Tsopano ambiri ntchito kugwirizanitsa uninterruptible mphamvu okwanira ndi kulankhulana ndi hardware machitidwe processing kompyuta anapatsa mtundu.

ntchito

Choncho, musanayambe kulankhula zambiri zokhudzana Com-doko, muyenera kuyang'ana mu zakale kumvetsa tanthauzo lake. Zaka 15 zapitazo, njira ntchito kulumikiza zipangizo kuti kompyuta kudzera wapadera muyezo cholumikizira ili kumbuyo kwa galimotoyo ntchito yapadera siriyo RS-232 chingwe. Njira ali kuipa ambiri. Chotero chingwe, mwa mfundo ano, imapereka otsika mtengo deta - za zana kilobits pa mphindi. Komanso, pamene ukupereka kugwirizana thupi la zolumikizira anafunika kugwiritsa ntchito shutdown zida, ndipo iwo anali Ufumuyo mzake mwa zomangira, kuonetsetsa zodalirika, pamene kukula ndi phindu ndithu.

A mbiri pang'ono

Com-doko ndiye makompyuta pachikhalidwe ankavala nambala 1 kapena 2, monga iwo amakhala oposa awiri. Mukhoza kukhazikitsa madoko zina ngati panafunika. Pamene wosuta mapulogalamu khwekhwe chofunika kuti asasokonezeke ndi molondola n'kuliika ndi amene zikugwirizana ndi zida zina zofunika. Aliyense zoikamo Com-doko amafuna mlingo olondola a HIV deta, komanso chiwerengero cha magawo ena ovuta kuwamvetsa amene ankadziwika kokha ku bwalo yopapatiza akatswiri. Kulumikiza zida kukhala opambana, magawo zonse zofunikira zofunika kwinakwake kuphunzira kapena kunyamula experimentally, monga mu nkhani iyi, panalibe kasinthidwe iliyonse basi. Komanso, kugwirizana kudzera Com-doko angathe kulumikiza pulogalamu iliyonse ndi zida kwina, ngakhale ndithu kosagwirizana, nchifukwa chake m'kati atakhala ndipo pali zambiri zolakwika.

modernity

Tsopano kugwirizana kudzera Com-doko kwathunthu utaposedwa zambiri zamakono njira, chimene chimafuna sadziwa wapadera kukhazikitsa, ndicho mwa USB-doko. Njira imeneyi ndi wopanda zovuta zonse tanenera poyamba. Komabe, za masiku ano ngakhale kugwirizana mitundu yonse ya GPS zipangizo ndi mapulogalamu kwambiri sakanikira kupangidwa kwa nthawi yaitali padziko mfundo Com-madoko zomwe zachitika panopa chachikale chinkawavuta.

Zimenezi zimaphatikizapo chakuti poyamba chilichonse zida, kuphatikizapo GPS, anali kunja, ndi kugwirizana kwake kwa kompyuta kuchitika ndi chingwe siriyo chikugwirizana ndi chimodzi mwa madoko hardware. Kuchokera wosuta mu ndondomeko kasinthidwe ankafunika kusankha olondola doko nambala deta kumasulira liwiro pa izo. Pa nthawi imeneyo, panali deta waukulu muyezo ku GPS-wolandila msonkhanowu tsopano limatchedwa NMEA-0183. Ndipotu mfundo imeneyi amafuna kutukula zonse, ngakhale ndi hardware ano ndi mapulogalamu kulankhula mwa Com-doko. Ndipo izi zonse mu nkhope ya zimene makompyuta ano, komanso CPC kalekale makamaka ndi USB muyezo. Ndipo chinthu china n'chakuti posachedwapa GPS-amalandira ambiri anayamba kuikidwa mwachindunji mkati mwa mpanda kuti kwathunthu kwina a chingwe aliyense kugwirizana pakati ndi chipangizo chachikulu.

Pafupifupi Com madoko

populumukirapo kupangidwa, ndicho kukhala "pafupifupi» Com-madoko. Iwo likukhalira kuti mkati ya m'manja chipangizo, mwachitsanzo, GPS-wolandila ndi yoyerekeza mu pulogalamu monga Com-doko, pamene anthu asakhale mawu hardware. Mu dongosolo ili, limene lakonzedwa kuti interfacing kudzera muyezo zofanana, palibe kusiyana mmene akuyendera. Pangakhale pamaso pa kayeseleledwe pafupifupi, osati pamaso pa kukhazikitsa ndi hardware. Choncho n'zotheka kuonetsetsa ngakhale wakale chitsanzo GPS-mapulogalamu ndi zida zamakono.

kusintha

Pa nthawi yomweyo wotsogolera Com-doko sanasinthe kwambiri. Wosuta akale ayenera kuchita zovuta khwekhwe pafupifupi pamanja. Komabe, masiku ano Com-doko akuimira osati chipangizo bulky aikidwa pa gulu kumbuyo kwa dongosolo wagawo ndi chipangizo zosiyana. Ndiyeno, chinthu chonsecho chiri kuti ku mapulogalamu maganizo, onse a iwo amaoneka chabe kuzindikira, ndiko kuti, palibe kusiyana pakati pa madoko pafupifupi ndi lenileni. Pakuti mapulogalamu manambala doko amasiyana kokha iwo amawatumiza opanga ndi PDA kuti maziko mwachisawawa kwathunthu. Mwachitsanzo, wolandirayo wa Asus zambiri ili COM5, ndi PocketLOOX 560 chikusonyeza wolandila kwa COM8. Iwo likukhalira kuti pulogalamu kuti akufuna kulandira kuchokera deta GPS-wolandila ali poyamba palibe mfundo zodalirika chiwerengero chizindikiritso imene doko limapezeka, anawerengedwa kuti wolandila lolingana pa PDA izi.

Kodi ntchito zonsezi?

Ndi kuti, mukhoza kugwira ndi kufufuza basi malo abwino ndondomeko ngati kafukufuku wa zonse zilipo Com-madoko ndi mwachilungamo wosadalirika ndi wolemera kwambiri. Ichi ndi chifukwa chakuti chipangizo kuwonetsedwa dongosolo monga Com-doko, akhoza kukhala osiyanasiyana ndithu koma zokhudzana GPS, iwo akhoza kukhala osadalirika ndithu kuyankha kafukufuku ameneyu. Mwachitsanzo, PDA ndi madoko kugwirizana ndi modemu mkati ma, ndi USB, infuraredi doko, komanso zinthu zina. Angayamikire dongosolo lakonzedwa kuti ntchito ndi chipangizo enieni, chingayambitse zochita sizimadziwika kwathunthu, komanso malfunctions zosiyanasiyana zimene zimayambitsa chagona PDA. N'chifukwa chake pofuna kuti kutsegula Com-doko kungachititse kuti zinthu zosayembekezereka kuti kuyatsa Bluetooth kapena doko infuraredi. Ndipo pakhoza kukhala samveka milandu.

Jobs Com-doko

Pakuti Com-doko ntchito monga maziko ndi asynchronous chilengedwe transceiver Chip. Chip limeneli likupezeka oonetsera zingapo: Intel 16550A, 16550, 16450, 8250. Pakuti aliyense Com-doko izo zizindikiro wolandila akaundula ndi deta chopatsilira ndi chiwerengero cha akaundula mphamvu akhoza kufika mwa BIOS, Windows ndi MS DOS. Mu atsopano mabaibulo Chip ali ndi ya buffers kwa kasungidwe mongoyembekezera deta opatsirana ndipo analandira. Ndi mphamvu, mukhoza usokoneze machitidwe a CPU ndi kamodzikamodzi, komanso mwandondomeko mlingo deta ya kulengeza kwa.

Magawo chachikulu

Com-doko chipangizo amadzisankhira kuli ziwalo khalidwe:

- m'munsi adiresi doko inputting ndi outputting zambiri;

- hardware usokoneze chiwerengero;

- kukula kwa chipika wina wa nkhani;

- mlingo pa zimene deta imafalikira;

- kukhulupirika kudziwika mode;

- otaya kulamulira njira;

- chiwerengero cha amasiya Akamva.

Kodi kufufuza Com-doko pa kompyuta? Choti?

Monga tanenera kale, mtundu wa doko ndi zina kuti adzipeza mbali mawonekedwe kufala deta pa mlingo pang'ono mu njira zonse. Chinthu chapadera poyerekeza ndi doko kufanana pano ndi kulanda deta pang'ono pang'ono. Com-doko thunthu ndi chotero kuti kompyuta sichoncho iye yekha amagwiritsa siriyo deta kufala njira. Mwachitsanzo, polumikizira monga Efaneti kapena USB, komanso kugwiritsa ntchito mfundo yomweyo, koma izo zinachitika mbiri kuti siriyo amanenela muyezo RS232 doko.

Nthawi chofunika kutsegula Com-doko kwa kukonza ndi kompyuta diagnostics, pamene izo ndi kofunika kuonanso ntchito. Kuwotcha amafotokozera chifukwa lophweka. Izi zimachitika nthawi zambiri chifukwa cha wosuta amene umabala cholakwika disconnection chipangizo, kukoka cholumikizira pamene chikugwirizana ndi mawonekedwe. Njira zosavuta kuyesa mawonekedwe ntchito ndi kulumikiza izo ndi mbewa. Komabe, izi ndi zovuta kumvetsa, kuyambira manipulator amagwiritsa theka chabe la mizere mbendera ya eyiti. Only ntchito pulagi wapadera ndi kulola pulogalamu kufufuza ntchito. Chifukwa chaichi kale alipo mapulogalamu mwapadera otukuka.