Yiziphi AT-imiyalo?

AT-imiyalo ukulawula modems. Empeleni, kuba umucu wezinhlamvu uqale nge izinhlamvu IAT ekupheleni nge izinhlamvu ukuthutha ukubuya. Nokho, e-string Ukuqalisa izakhi lokuvala akhiwa ngokuzenzakalelayo. Izimpawu AT-imiyalo kungaba kokubili usonhlamvukazi kanye ezincane. Phakathi kwemiyalo ngabanye zingabekwa izikhala.

Izici ezengeziwe

Ngaphezu kokwenza imisebenzi eyisisekelo elihlobene ne ukushintsha imodi ye imodemu, AT-imiyalo ongasebenza S-amarejista idivayisi nezokuxhumana. Ziqukethe imininingwane ehlukahlukene service, okuyinto edingekayo ukuqinisekisa ukusebenza kokuhlela imodemu. Ngokwesibonelo, ngo-S-irejista ingagcina constants ekunqumeni isikhathi sokulinda, izinhlobo yezifiso esetshenziswa, amasignali analog, amazinga we amasignali input bese okukhipha nokunye. Isibalo amarejista ichaza imodemu kunjiniyela ngezinye izikhathi inani lawo kuyinto emakhulwini amaningana. Nokho, kucatshangwa ukuthi owokuqala 13 ISIZINDA enjalo ukuhlala esabelweni kunqunywa umakhi. Naphezu kweqiniso lokuthi okuqukethwe S-ukubhalisa, umsebenzisi ngamunye ongalungisa nokufunda uma bebona kunesidingo, akufanele sikhohlwe ukuthi idatha unobuhlobo eziyinkimbinkimbi kakhulu ezihlukahlukene uhlelo ISIZINDA. Ngakho ukuthi ushintsho engafanele noma iyiphi irejista kungaholela yokuthi esikhathini esizayo kuyoba akwenzeki ukusebenzisa isofthiwe ejwayelekile ku-intanethi.

Basic AT-imiyalo ukuthi zivame kakhulu asetshenziswa modems

1. L0-L3 - kusho ivolumu isikhulumi. Izinombolo sihambisana ubuncane, ongaphakeme, aphakathi nendawo kanye ezingeni esiphezulu.

2. - kusho sicelo sekufinyelela idatha kwimemori unomphela idivayisi imodemu, lapho u-n oluhambisana inani iqembu lokuqala.

3. M0-M3 - Dynamics isimo, lapho:

- 0 - kudivayisi;

- 1 - isikhulumi kuhlanganisiwe kusuka "hook off" futhi kuze kube uxhumano Kumiswa;

- 2 - idivayisi njalo switched off;

- 3 - isikhulumi esitshalweni kuphela ngemva idijithi yokugcina kule nombolo, amvalele phansi ngemuva kweseshini ukusungulwa.

4. P ne-T - oluhambisana ukusetshenziswa ishayela (Pulse) kanye ithoni (EZWAKALA) Ukudayela.

5. S - umsebenzi nge amarejista imodemu. KANGAKA? okufanayo nokuqukethwe nombuzo engeyokuqala SO. SO = 1 sabelwe isimo irejista iyunithi.

6. Z - kusho ukuthi okuqukethwe zonke izingxenye efakwe ezingeni kokuqala.

7. & F - oluhambisana zokunciphisa ulwazi S-okubhalwe kuwo imodemu inkumbulo unomphela. Le datha ebhaliwe nomkhiqizi imodemu, abakwazi ukushintshwa ngumsebenzisi.

8. & W - uloba okuqukethwe amarejista e unenkumbulo ekhethekile-non-oluyingozi ukuze alondoloze izilungiselelo umsebenzisi.

AT-imiyalo GSM-imodemu

Ngokwe-standard GSM 07,07, umugqa wemiyalo ukulawula ukunquma "umongo" Kumele ube ifomu elilandelayo: + CGDCONT = [[, < PDP_type> [, [, [, [, [, [, ... [ , pdN]]]]]]]]]. Ake sibheke ukuthi lokhu kwakusho ukuthini ukuqopha (AT umyalo):

1. cid - lesi sikhombi umongo. Njalo inenombolo nge "+". Inani layo esiphezulu kunqunywa imodeli yedivayisi.

2. PDP_type - kubonisa uhlobo locwaningo.

3. I-APN - igama zokungena kuchazwe opharetha amaselula.

4. d_comp - PDP idatha izindlela, lapho 0 - off, 1 - ku.

5. h_comp - okuhambelana PDP unhlokweni kokucindezelwa, lapho 0 - off, 1 - ku.

6. pd1 ... pdN - kusho nemingcele string ethize nohlobo olandelwayo.