Kodi protocol ya UART imagwira ntchito bwanji? Ngati munayamba mwadzifunsapo kuti zida zamagetsi zimatha kulumikizana bwanji? bwino ndipo mwachangu, yankho limapezeka mu protocol ya UART. Protocol iyi, yachidule ya Universal Asynchronous Receiver/Transmitter, ndiyofunikira pazamagetsi ndi mapulogalamu. Zimagwira ntchito ngati njira yolumikizirana yomwe imalola kusinthana kwa data pakati pa zida zosiyanasiyana, monga ma microcontrollers ndi zotumphukira. Kupyolera mu zingwe ziwiri zosavuta, zizindikiro zimafalitsidwa ndikulandiridwa mu mawonekedwe a bits, zomwe zimalola kusamutsidwa kwa chidziwitso mosalekeza. M'nkhaniyi, tidzafufuza momveka bwino momwe protocol iyi imagwirira ntchito, kuti muthe kumvetsa bwino momwe kuyankhulana pakati pa zipangizo zosiyanasiyana zamagetsi kumachitikira.

Pang'onopang'ono ➡️ Kodi protocol ya UART imagwira ntchito bwanji?

Protocol ya UART imagwiritsidwa ntchito kwambiri polumikizirana ma serial. pakati pa zipangizo zamagetsi. Zimalola kusamutsa deta bayinare m'njira yosavuta komanso yabwino. Kenako, tikufotokozera momwe protocol iyi imagwirira ntchito sitepe ndi sitepe:

• Gawo 1: Chiyambi cha kuyankhulana. Ndicholinga choti zipangizo ziwiri kuyankhulana kudzera mu protocol ya UART, mmodzi wa iwo ayenera kutenga udindo wa mbuye ndipo winayo ngati kapolo. Mbuyeyo amayamba kulankhulana potumiza chizindikiro choyambira chotchedwa "start bit."
• Gawo 2: Kutumiza kwa data. Kamodzi koyambira katumizidwa, mbuyeyo amayamba kutumiza ma data pang'ono. Chidutswa chilichonse chimafalitsidwa mosalekeza, ndiye kuti, chimodzi pambuyo pa chimzake.
• Gawo 3: Zida za data. Dongosolo lililonse limatumizidwa motsatana pang'ono mpaka zofunikira kwambiri. Mwachitsanzo, ngati tikutumiza nambala 5, yomwe mu binary ndi 0101, chochepa kwambiri (1) chidzatumizidwa choyamba, ndikutsatiridwa ndi chotsatira (0), ndi zina zotero mpaka 4 bits zonse zitatha.
• Gawo 4: Parity (posankha). Nthawi zina, pang'ono pang'ono akhoza kuwonjezeredwa kutsimikizira kukhulupirika kwa deta yofalitsidwa. Pang'onopang'ono izi zimawerengedwa potengera kuchuluka kwa zomwe zili mu data bits ndipo zimagwiritsidwa ntchito kuti zizindikire zolakwika zomwe zingatheke panthawi yopatsirana.
• Gawo 5: Imani pang'ono Zigawo za data zikatumizidwa, mbuyeyo amatumiza maimidwe amodzi kapena angapo kuti awonetse kutha kwa kufalitsa. Ma bits awa nthawi zambiri amakhala ndi mtengo womveka 1.
• Gawo 6: Kutha kwa kulumikizana. Pambuyo potumiza zoyimitsa, kuyankhulana kumaonedwa kuti ndi kokwanira ndipo zipangizo zimabwerera kumalo awo ogona.

Protocol ya UART imagwiritsidwa ntchito kwambiri pazida monga ma microcontrollers, ma module olumikizirana ndi zida zina zamagetsi. Kuphweka kwake komanso kuchita bwino kumapangitsa kuti ikhale njira yabwino yolumikizirana pakati pazida. Tsopano popeza mukudziwa momwe zimagwirira ntchito, mutha kugwiritsa ntchito! mu mapulojekiti anu zamagetsi!

Mafunso ndi Mayankho

UART Protocol FAQ

1. Kodi UART protocol ndi chiyani?

Protocol ya UART (Universal Asynchronous Receiver/Transmitter) ndi njira yolumikizirana yomwe imagwiritsidwa ntchito potumiza deta pakati pa zida zamagetsi.

2. Kodi kulumikizana kwa UART ndi chiyani?

Kuyankhulana kwa UART kumaphatikizapo kutumiza ndi kulandira deta ngati mapaketi a bits pa chingwe chotumizira, popanda chizindikiro cha wotchi yogawana.

3. Kodi kulumikizana kwa UART kumakhazikitsidwa bwanji pakati pa zida?

Kulankhulana kwa UART kumakhazikitsidwa kudzera mu kulumikizana kwakuthupi pogwiritsa ntchito zikhomo ziwiri: imodzi kutumiza deta (TX) ndi ina kuti ilandire (RX).

4. Kodi liwiro lotumizira mu UART ndi chiyani?

Liwiro lotumizira, lomwe limadziwikanso kuti baudrate, limatsimikizira kuchuluka kwa ma bits omwe amatumizidwa kapena kulandiridwa pamphindikati. Ndi configurable ndipo zingasiyane malinga ndi zipangizo.

5. Momwe mungasinthire kuchuluka kwa baud mu UART?

1. Yambitsani kasinthidwe ka doko.
2. Nenani liwiro lomwe mukufuna kufalitsa.
3. Ikani kasinthidwe ku doko la serial.

6. Kodi UART ndi ndondomeko yanji?

UART ndi njira yosasinthika, zomwe zikutanthauza kuti sichigwiritsa ntchito chizindikiro cha wotchi yogawana pakati pa zida zolumikizirana.

7. Kodi pali kusiyana kotani pakati pa UART ndi RS232?

UART ndi njira yolumikizirana, pomwe RS232 ndi mawonekedwe akuthupi omwe amagwiritsa ntchito protocol ya UART kufalitsa ma serial data.

8. Kodi malire a kulumikizana kwa UART ndi chiyani?

1. Kulankhulana kwa UART kumangolola kulumikizana pakati pa zida ziwiri.
2. Kutumiza kumachitika mu Mbali Imodzi zonse ziwiri (full-duplex sizingatheke).
3. Pali malire a mtunda chifukwa cha kutayika kwa chizindikiro kudzera pa chingwe.

9. Ubwino wogwiritsa ntchito UART ndi chiyani?

Ubwino wogwiritsa ntchito UART ndi kuphweka kwake komanso kupezeka kulikonse, popeza imapezeka muzinthu zambiri zamagetsi.

10. Kodi njira ya UART imagwiritsidwa ntchito pati?

Protocol ya UART imagwiritsidwa ntchito pazinthu zambiri, kuphatikiza kulumikizana pakati pa ma microcontrollers, masensa, ma module opanda zingwe, ndi zida za Internet of Things (IoT), pakati pa ena.