I-PmodBT2™ Reference Manual
Kubuyekezwe uNovemba 18, 2019
Leli bhukwana lisebenza ku-PmodBT2 rev. A
Kuphelileview
I-PmodBT2 iyimojula ye-peripheral enamandla esebenzisa i-Roving Networks® RN-42 ukuze yakhe isixhumi esibonakalayo se-Bluetooth esihlanganiswe ngokugcwele.
I-PmodBT2.
Izici zifaka:
- I-Bluetooth 2.1/2.0/1.2/1.0 iyahambisana
- Engeza amandla angenawaya ngala mandla aphansi, umsakazo we-Bluetooth we-Class 2
- Isekela i-HID profile ukwenza izesekeli ezifana nemishini yokukhomba, njll.
- Ukuxhumana okuvikelekile, ukubethela okungu-128-bit
- Isekela isixhumanisi sedatha ye-Bluetooth ku-iPhone/iPad/iPod Touch
- Izindlela eziyisithupha ezahlukene
- Usayizi omncane we-PCB wemiklamo evumelana nezimo 1.5“ × 0.8” (3.8 cm × 2.0 cm)
- Imbobo ye-Pmod engu-12-pin ene-UART interface
Incazelo Esebenzayo
I-PmodBT2 isebenzisa imbobo yamaphini angu-12 ejwayelekile futhi ixhumana nge-UART. Kukhona unhlokweni wesibili we-SPI ebhodini wokubuyekeza i-firmware ye-RN-42 uma kudingeka.
1.1 Izilungiselelo zeJumper
I-PmodBT2 inezinhlobo ezimbalwa ezitholakala kumsebenzisi ngezilungiselelo ze-jumper. I-JP1 kuya ku-JP4 ihlinzeka ngezindlela ezihlukahlukene zokusebenza njengoba kukhonjisiwe kuThebula 1 ngezansi. I-jumper ngayinye iyasebenza uma imfushane. I-JP1 ibuyisela idivayisi kuzilungiselelo ezizenzakalelayo ngemva koshintsho oluthathu lwesilungiselelo se-jumper (okufushane kuya kokuvula noma okuvula kuya-kufushane). Ngemva koshintsho lwesithathu, idivayisi ibuyela kokumisiwe kwesici ngaphandle kwegama le-Bluetooth. Amanye ama-jumper amathathu, i-JP2-JP4, ama-sample ekusetshenzisweni kokuqala okungu-500 ms ukuvumela izikhonkwane ababopha kuzo kumojuli ye-RN-42 ukuthi zifeze injongo ehlukile kamuva ekusebenzeni kwamamojula. I-JP2 inika amandla ukubhanqa nekilasi ledivayisi ekhethekile elichazwe umsebenzisi kusofthiwe. Lokhu kungase kusetshenziswe ukuze i-PmodBT2 isebenze esikhundleni sekhebula le-RS232. I-JP3 inika amandla ukuxhuma okuzenzakalelayo ekhelini eligciniwe elichazwe umsebenzisi. Okokugcina, i-JP4 ikhetha ukuthi izosebenza yini ngesilinganiso se-baud esigciniwe (okuzenzakalelayo okungu-115.2kbps) noma izinga le-baud elingu-9600 kungakhathaliseki izinga elikhethiwe lesofthiwe uma lifinyezwa. Ukuze uthole ukwaziswa okwengeziwe mayelana nezilungiselelo ze-jumper nokusebenza, bheka imanuwali yomsebenzisi ye-RN-42.
| I-Jumper | Incazelo |
| I-JP1 (PIO4) | Okuzenzakalelayo Kwefekthri |
| I-JP2 (PIO3) | Ukutholwa Okuzenzakalelayo/Ukumatanisa |
| I-JP3 (PIO6) | I-Auto Connect |
| I-JP4 (PIO7) | I-Baud Rate Setting (9600) |
Ithebula 1. Setha incazelo ye-jumper.
1.2 UART Interface
Ngokuzenzakalelayo, isixhumi esibonakalayo se-UART sisebenzisa isilinganiso se-baud esingu-115.2 kbps, amabhithi edatha angu-8, akukho kulinganisa, kanye nokuma kancane kancane. Izinga lokuqalisa le-baud lingase lenziwe ngendlela oyifisayo ukuze libe izilinganiso ezichazwe ngaphambilini noma lisethelwe kuzinga elithile lomsebenzisi elenziwe ngezifiso.
Amazinga e-baud achazwe ngaphambilini asukela ku-1200 kuya ku-921k.
Iphinikhodi yokusetha kabusha (RST) ku-J1 iyasebenza iphansi. Uma iphinikhodi ye-RST iguqulwa, idivayisi izosethwa kabusha kanzima. Lokhu kusetha kabusha okuqinile kwenza okufanayo nokujikeleza kwamandla kwedivayisi. Isixhumi esibonakalayo sesibili ngaphandle kwamasiginali e-UART ajwayelekile yiphinikhodi ye-STATUS nayo eku-J1Iphinikhodi ye-STATUS ibonisa ngokuqondile isimo sokuxhuma kwedivayisi. STATUS ishayelwa phezulu idivayisi uma ixhunyiwe futhi ishayelwa phansi uma kungenjalo.
Ukuze uthole ulwazi olwengeziwe mayelana nesixhumi esibonakalayo se-UART samadivayisi kanye namaphinikhodi we-RST kanye ne-STATUS bheka kubhukwana lomsebenzisi le-RN-42 ku-Roving Networks. webindawo.
1.3 Imodi yomyalo
Ukuze ufake imodi yomyalo, i-PmodBT2 kufanele ithole okuthi “$$$” lapho izophendula ngokuthi “CMD”. Uma ikumodi yomyalo, imojuli izophendula inombolo enkulu yemiyalo evumela umsebenzisi ukuthi enze ngendlela oyifisayo imojuli yezinhlelo zokusebenza ezithile. Ukuze uphume kumodi yomyalo, thumela “— ” (izimpawu zokususa ezintathu zilandelana nalapho imele uhlamvu olubuyayo lwenqola) lapho idivayisi izophendula khona ngokuthi “END”. Ukucushwa kwesilawuli kude, noma ukumisa ngoxhumano lwe-Bluetooth, kungenzeka ngemodi yomyalo kodwa kunemikhawulo eminingana. Isikhathi sokumisa, esizenzakalela sibe amasekhondi angu-60, sichaza iwindi lesikhathi lapho i-PmodBT2 ingase ilungiswe khona ukude. Ngaphandle kwalesi sikhathi, i-PmodBT2 ngeke iphendule kunoma yimiphi imiyalo ekude. Kubalulekile ukuqaphela ukuthi noma yimiphi imiyalo "set" etholakalayo ye-PmodBT2 kufanele ilandelwe umjikelezo wamandla ukuze isebenze kunoma iyiphi idizayini.
| Isixhumi J1 – UART Communications | ||
| Phina | Isiginali | Incazelo |
| 1 | I-RTS | Ilungele Ukuthumela |
| 2 | RX | Yamukela |
| 3 | TX | Dlulisa |
| 4 | I-CTS | Sula Ukuthumela |
| 5 | GND | I-Power Supply Ground |
| 6 | VCC | Ukunikezwa kwamandla (3.3V) |
| 7 | ISIMO | Isimo sokuxhuma |
| 8 | ~RST | Setha kabusha |
| 9 | NC | Ayixhunyiwe |
| 10 | NC | Ayixhunyiwe |
| 11 | GND | I-Power Supply Ground |
| 12 | VCC | Ukunikezwa kwamandla (3.3V) |
Isixhumi J2 – Isixhumi se-SPI (Isibuyekezo seFirmware Kuphela)
| 1 | I-MISO | Master in/ Gcoba |
| 2 | UMOSI | I-master out/ gqilaza |
| 3 | SCK | Iwashi le-serial |
| 4 | ~CS | I-Chip Khetha |
| 5 | VCC | Ukunikezwa kwamandla (3.3V) |
| 6 | GND | I-Power Supply Ground |
Ithebula 2. Izincazelo zesixhumi.
Izindlela ezihlukahlukene zokusebenza zifinyelelwa ngokusebenzisa umyalo othi “SM,<5,4,3,2,1,0>” ngenkathi ukumodi yomyalo. I-PmodBT2 ingafakwa kumodi eyodwa kweziyisithupha ezikhona zokusebenza. Izindlela ngokulandelana kwazo, 0 kuye ku-5, yilezi: isigqila, inkosi, i-trigger master, i-auto-connect, i-auto-connect DTR, kanye nokuxhuma ngokuzenzakalela NOMA NOMA KUYIPHI. Ukuze uthole ukwaziswa okwengeziwe mayelana nezindlela ezahlukene zokusebenza, bheka imanuwali yomsebenzisi ye-RN-42. Ukuze uthole uhlu olugcwele lwemiyalo yedivayisi, ukuthi umiswa kanjani i-emote yomsebenzisi, kanye nolwazi oluningiliziwe mayelana nezindlela ezihlukene zokusebenza, bheka idatha ye-RN-42.
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Amadokhumenti / Izinsiza
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