Ndi AT-malamulo chiyani?

AT-akulamula kulamulira modems. Ndipotu, ndi chingwe cha anthu otchulidwa kuti kuyamba ndi zilembo AT ndi mapeto ndi zilembo ophimba kubwerera. Komabe, mu chingwe initialization zinthu kutseka anapanga basi. Zizindikiro AT-malamulo zimakhala zazikulu ndi lowercase. Pakati pa malamulo a munthu angathe kuika mipata.

Features zina

Kuwonjezera kuchita zinthu zikuluzikulu kugwirizana ndi kusintha akafuna modemu ndi, AT-malamulo ungatithandizire S-akaundula a chipangizo aya. Iwo ali ndi mfundo utumiki zosiyanasiyana, zomwe ndi zofunika kuonetsetsa magwiridwe a modemu ndi. Mwachitsanzo, mu S-m'kaundula angathe kusunga zokhazikika kudziwa nthawi kuyembekezera, mitundu ya ndondomeko ntchito, ndi zizindikiro analogi, pa kaperekedwe ka athandizira ndi linanena bungwe chizindikiro ndi zina zotero. chiwerengero cha akaundula imalongosola modemu mapulogalamu zina chiwerengero chawo okwana ndi mazana angapo. Komabe, amaganiza kuti choyamba 13 mfundo ngati kukhalabe ntchito anatsimikiza ndi Mlengi. Ngakhale kuti nkhani za S-mayina, aliyense wosuta akhoza kusintha ndi kuwerenga pa nzeru zawo, Tisaiwale kuti deta ali pa ubwenzi zovuta zosiyanasiyana dongosolo mfundo. Kotero kuti kusintha owonjezera a m'kaundula chilichonse kungachititse chakuti m'tsogolo zidzakhala zosatheka kugwiritsa ntchito muyezo mapulogalamu Intaneti.

Kuweta AT-malamulo amene amapezeka kawirikawiri ntchito modems

1. L0-L3 - zikutanthauza buku wokamba. manambala zimagwirizana osachepera pa otsika, sing'anga ndi mlingo pazipita.

2. Mu - zikutanthauza pempho kwa deta ku kukumbukira kwamuyaya kwa chipangizo modemu, kumene N limafanana ndi chiwerengero cha gulu loyamba.

3. M0-M3 - boma mphamvu, komwe:

- 0 - foni;

- 1 - wokamba m'gulu ku "mbedza kutali" ndipo mpaka kugwirizana udzakhazikitsidwe;

- 2 - chipangizo nthawi zonse wazimitsa;

- 3 - wokamba nkhani anazimitsa pa pokhapokha manambala otsiriza chiwerengero, ndi kutseka pansi kuchokera mu phunziro kukhazikitsidwa.

4. P ndipo T - limafanana ndi ntchito zimachitika (zimachitika) ndi mmene (Omveka) kuimba.

5. S - ntchito akaundula modemu. CHONCHI? zofanana ndi kusaka mfundo zili choncho. CHONCHO = 1 amagwira ntchito mu chikhalidwe m'kaundula unit.

6. Z - zikutanthauza kuti nkhani za zigawo zonse anaika pa mlingo woyambilira.

7. & F - limafanana ndi kuchepetsa mfundo S-akaundula a modemu kukumbukira okhazikika. deta Izi zinalembedwa kuti Mlengi modemu, iwo sizingasinthidwe ndi wosuta.

8. & W - akulemba nkhani za akaundula mu wapadera sanali oyaka kukumbukira pofuna zoikamo wosuta.

AT-akulamula GSM-modemu

Malinga ndi muyezo GSM 07,07, lamulo mzere ulamuliro kudziwa "nkhani" ayenera mawonekedwe zotsatirazi: + CGDCONT = [[, < PDP_type> [, [, [, [, [, [... [ , pdN]]]]]]]]]. Tiyeni tione zimene ndifunika kujambula (AT lamulo):

1. cid - uyu dzina nkhani. Nthaŵi inteja ndi "+". Mtengo wake pazipita anatsimikiza ndi chitsanzo chipangizo.

2. PDP_type - limasonyeza mtundu wa protocol.

3. APN - dzina mfundo mwayi chimafotokozera woyendetsa za ma.

4. d_comp - PDP deta psinjika njira, kumene 0 - kutali, 1 - pa.

5. h_comp - limafanana PDP chamutu psinjika, pamene 0 - kutali, 1 - pa.

6. pd1 ... pdN - zomwe zikutanthauziradi chingwe magawo enieni kwa mtundu protocol.