Ukucushwa kwe-SmartFusion2 MSS MMUART
Umhlahlandlela Womsebenzisi
Isingeniso
I-SmartFusion2 Micro controller Subsystem (MSS) ihlinzeka ngama-peripherals aqinile e-MMUART (APB_0 namabhasi amancane e-APB_1) ane-Full/Half Duplex, Imodi ye-Asynchronous/ Synchronous kanye nenketho yesixhumi esibonakalayo se-Modem.
Kukhanvasi ye-MSS, kufanele uvule (okuzenzakalelayo) noma ukhubaze isenzakalo ngasinye se-MMUART ngokusekelwe ekutheni iyasetshenziswa yini ohlelweni lwakho lokusebenza lwamanje. Izenzakalo ze-MMUART ezikhutshaziwe zigcinwe ngokusetha kabusha (isimo samandla aphansi kakhulu). Ngokuzenzakalelayo, izimbobo zezenzakalo ze-MMUART ezinikwe amandla zilungiswa ukuze zixhumeke kudivayisi ye-Multi Standard I/Os (MSIOs). Qaphela ukuthi ama-MSIO abelwe isenzakalo se-MMUART abiwa namanye ama-peripheral e-MSS. Lawa ma-I/O abelwe ayatholakala ukuze axhumeke kuma-MSS GPIOs namanye ama-peripheral uma isenzakalo se-MMUART sikhutshaziwe noma uma izimbobo zesibonelo ze-MMUART zixhunywe kwendwangu ye-FPGA.
Ukuziphatha okusebenzayo kwesenzakalo ngasinye se-MMUART kufanele kuchazwe kuleveli yohlelo kusetshenziswa I-SmartFusion2 MSS MMUART Driver ehlinzekwe yi-Microsemi.
Kulo mbhalo, sichaza ukuthi ungazilungiselela kanjani izimo ze-MSS MMUART futhi uchaze ukuthi amasiginali we-peripheral axhumeke kanjani.
Ukuze uthole imininingwane eyengeziwe mayelana nama-hard peripherals we-MSS MMUART, sicela ubheke ku-SmartFusion2 User Guide.
Izinketho zokumisa
Imodi ye-Duplex:
- I-Duplex Egcwele - Inikeza amasiginali amabili wedatha ye-serial, i-RXD ne-TXD
- I-Half Duplex - Inikeza isignali eyodwa yedatha ye-serial, TXD_RXD
Imodi ye-Async/Sync - Ukukhetha Imodi Evumelanayo kunikeza isignali ye-CLK.
I-Modem Interface - Ukukhetha isixhumi esibonakalayo seModemu kunika amandla ukufinyelela kuzimbobo ngazinye eqenjini lembobo ye-MODEM.
Ithebula Lokwabiwa Kwezimpawu Zomngcele
Isakhiwo se-SmartFusion2 sinikeza i-schema eguquguquka kakhulu yokuxhuma amasignali e-peripheral kuma-MSIO noma indwangu ye-FPGA. Sebenzisa ithebula lesignali yokumisa ukuze uchaze ukuthi i-peripheral yakho ixhumeke kuphi kuhlelo lwakho lokusebenza. Ithebula lesabelo linamakholomu alandelayo (Umfanekiso 2-1):
I-MSIO - Ikhomba igama lesignali ye-peripheral elilungiselelwe emugqeni othile.
Ukuxhumana Okuyinhloko - Sebenzisa uhlu lokudonsela phansi ukuze ukhethe ukuthi isignali ixhunywe ku-MSIO noma indwangu ye-FPGA.
Isiqondiso - Ibonisa ukuthi isikhombisi-ndlela sesiginali NGU-IN, OUT noma INGAPHI.
Iphinikhodi yephakheji - Ibonisa iphinikhodi yephakheji ehlotshaniswa ne-MSIO lapho isignali ixhunywe ku-MSIO.
Ukuxhumana Okungeziwe - Sebenzisa ibhokisi lokuhlola Izinketho Ezithuthukisiwe ukuze view izinketho ezengeziwe zokuxhumana:
- Khetha inketho Yendwangu ukuze ubuke endwangu ye-FPGA isignali exhunywe ku-MSIO.
- Khetha inketho ye-GPIO ukuze ubone isignali yenkomba yokufaka - kusukela kwendwangu ye-FPGA noma i-MSIO - usebenzisa i-MSS GPIO.
Ukuxhumana Preview
I-Connection Preview iphaneli kwesokudla sengxoxo ye-MSS MMUART Configurator ibonisa umfanekiso view kokuxhumana kwamanje komugqa wesignali ogqanyisiwe (Umfanekiso 3-1).
Ukungqubuzana Kwezinsiza
Ngenxa yokuthi ama-peripherals e-MSS (MMUART, I2C, SPI, CAN, GPIO, USB, Ethernet MAC) abelana ngezinsiza zokufinyelela zendwangu ye-MSIO ne-FPGA, ukulungiselelwa kwanoma iyiphi yalezi zindawo kungase kubangele ukungqubuzana kwensiza lapho ulungiselela isenzakalo se-peripheral yamanje. Ukucushwa kwe-peripheral kunikeza izinkomba ezicacile lapho ukungqubuzana okunjalo kuphakama.
Izinsiza ezisetshenziswa umphumela we-peripheral olungiselelwe ngaphambilini ezinhlotsheni ezintathu zempendulo kusilungiselelo samanje se-peripheral:
- Imininingwane - Uma insiza esetshenziswa enye i-peripheral ingangqubuzani nokucushwa kwamanje, isithonjana solwazi siyavela ekuxhumekeni kwangaphambili.view iphaneli, kuleyo nsiza. Ithiphu yethuluzi esithonjaneni inikeza imininingwane mayelana nokuthi iyiphi i-peripheral esebenzisa leyo nsiza.
- Isexwayiso/Iphutha - Uma insiza esetshenziswa enye i-peripheral ingqubuzana nokucushwa kwamanje, kuvela isithonjana sesixwayiso noma iphutha ekuxhumekeni kwangaphambili.view iphaneli, kuleyo nsiza. Ithiphu yethuluzi esithonjaneni inikeza imininingwane mayelana nokuthi iyiphi i-peripheral esebenzisa leyo nsiza.
Uma amaphutha eboniswa ngeke ukwazi ukwenza ukumisa kwamanje. Ungakwazi ukuxazulula ukungqubuzana ngokusebenzisa ukulungiselelwa okuhlukile noma ukhansele ukucushwa kwamanje usebenzisa inkinobho ethi Khansela.
Uma izixwayiso ziboniswa (futhi awekho amaphutha), ungakwazi ukwenza ukucushwa kwamanje. Nokho, awukwazi ukukhiqiza i-MSS iyonke; uzobona amaphutha esizukulwane efasiteleni lokungena le-Libero SoC. Kufanele uxazulule ukungqubuzana okudalile ngenkathi wenza ukucushwa ngokuphinda ulungiselele noma iyiphi i-peripheral edala ukungqubuzana.
Ukucushwa kwe-peripheral kusebenzisa imithetho elandelayo ukuze kunqunywe uma ngabe ukungqubuzana kufanele kubikwe njengephutha noma isexwayiso.
- Uma i-peripheral elungiswayo iyi-GPIO peripheral ngakho konke ukungqubuzana kungamaphutha.
- Uma i-peripheral elungiswayo ingeyona i-GPIO peripheral ngakho konke ukungqubuzana kungamaphutha ngaphandle kwalapho ukungqubuzana kunensiza ye-GPIO lapho ukungqubuzana kuzothathwa njengezixwayiso.
Iphutha Example
I-peripheral ye-USB iyasetshenziswa futhi isebenzisa i-PAD yedivayisi eboshwe ukupakisha iphinikhodi H27. Ukulungiselela umngcele we-MMUART_0 ngendlela yokuthi imbobo ye-TXD_RXD ixhumeke ku-MSIO kuzoholela ephutha.
Umfanekiso 4-1 ibonisa isithonjana sephutha esiboniswe kuthebula lesabelo soxhumano lwembobo ye-TXD_RXD.
Umfanekiso 4-2 ikhombisa isithonjana sephutha esivezwe ngaphambiliniview iphaneli kusisetshenziswa se-PAD sembobo ye-TXD_RXD.
Isexwayiso Example
I-GPIO peripheral isetshenziswa futhi isebenzisa i-PAD yedivayisi eboshwe ukupakisha iphinikhodi H27 (GPIO_27).
Ukulungiselela umngcele we-MMUART_0 ngendlela yokuthi imbobo ye-TXD_RXD ixhumeke ku-MSIO kuzoholela kusexwayiso.
Umfanekiso 4-3 ibonisa isithonjana sesexwayiso esiboniswa kuthebula lesabelo sokuxhumana sembobo ye-TXD_RXD.
Umfanekiso 4-4 ikhombisa isithonjana sesixwayiso esivezwe ngaphambiliniview iphaneli kusisetshenziswa se-PAD sembobo ye-TXD_RXD.
Ulwazi Example
I-peripheral ye-USB iyasetshenziswa futhi isebenzisa i-PAD yedivayisi eboshwe ukupakisha iphinikhodi H27 (Umfanekiso 4-5).
Ukulungiselela umngcele we-MMUART_0 ngendlela yokuthi imbobo ye-TXD_RXD ixhumeke kwindwangu ye-FPGA akubangeli ukungqubuzana. Kodwa-ke, ukukhombisa ukuthi i-PAD ihlotshaniswa nembobo ye-TXD_RXD (kodwa ayisetshenziswanga kuleli cala), isithonjana solwazi siboniswa ngaphambili.view iphaneli. Ithiphu yethuluzi elihlobene nesithonjana linikeza incazelo yokuthi insiza isetshenziswa kanjani (i-USB kulokhu).
Incazelo Yembobo
Ithebula 5-1 • Incazelo Yembobo
| Igama Lembobo | Port Group | Isiqondiso | Incazelo |
| I-TXD | MMUART_ _PADS MMUART_ _IFBRIC |
Phuma | Idatha yokuphuma kwe-serial kumodi ye-Duplex Egcwele. Lena idatha ezodluliswa isuka ku-Core16550. Ivunyelaniswe nephinikhodi ye-BAUD OUT. |
| I-RXD | MMUART_ _PADS MMUART_ _IFBRIC |
In | Idatha Yokufakwayo Kwe-serial kumodi ye-Duplex Egcwele. Lena idatha ezodluliselwa ku-Core16550. Ivunyelaniswa nephinikhodi yokufaka ye-PCLK. |
| TXD_RXD | MMUART_ _PADS MMUART_ _IFBRIC |
Ngaphandle | Okuphumayo kwe-serial kanye nedatha yokufaka kumodi ye-Half Duplex. |
| I-CLK | MMUART_ _CLK MMUART_ _FABRIC_CLK |
Ngaphandle | Iwashi kwimodi yokuvumelanisa. |
| I-RTS | MMUART_ _MODEM_PADS MMUART_ _FABRIC_MODEM | Phuma | Isicelo Sokuthumela. Lesi signali esebenzayo yokuphumayo ephezulu isetshenziselwa ukwazisa idivayisi enamathiselwe (imodemu) ukuthi i-Core16550 isilungele ukuthumela idatha. Ihlelwe yi-CPU ngeRejista Yokulawula Imodemu. |
| I-DTR | MMUART_ _PADS_MODEM MMUART_ _FABRIC_MODEM | Phuma | Itheminali Yedatha Ilungile. Lesi signali esebenzayo yokuphumayo ephezulu yazisa idivayisi enamathiselwe (imodemu) ukuthi i-Core16550 isilungele ukusungula isixhumanisi sokuxhumana. Ihlelwe yi-CPU ngeRejista Yokulawula Imodemu. |
| I-DSR | MMUART_ _PADS_MODEM MMUART_ _FABRIC_MODEM | In | Idatha Isethiwe Ilungile. Lesi siginali ephezulu esebenzayo okokufaka okubonisa lapho idivayisi enamathiselwe (imodemu) isilungele ukusetha isixhumanisi nge-Core16550. I-Core16550 idlulisela lolu lwazi ku-CPU ngerejista Yesimo Semodemu. Le rejista iphinde ikhombise uma isignali ye-DSR ishintshile kusukela ngesikhathi sokugcina irejista ifundwa. |
| I-CTS | MMUART_ _PADS_MODEM MMUART_ _FABRIC_MODEM | In | Sula Ukuthumela. Lesi siginali ephezulu esebenzayo okokufaka okubonisa lapho idivayisi enamathiselwe (imodemu) isilungele ukwamukela idatha. I-Core16550 idlulisela lolu lwazi ku-CPU ngerejista Yesimo Semodemu. Le rejista iphinde ikhombise uma isignali ye-CTS ishintshile kusukela ngesikhathi sokugcina irejista ifundwa. |
| Igama Lembobo | Port Group | Isiqondiso | Incazelo |
| RI | MMUART_ _PADS_MODEM \MMUART_ _FABRIC_MODEM |
in | Inkomba Yezindandatho. Lesi signali ephezulu esebenzayo iwukufaka okubonisa lapho idivayisi enamathiselwe (imodemu) sizwe isignali yokukhala entanjeni yocingo. I-Core16550 idlulisela lolu lwazi ku-CPU ngerejista Yesimo Semodemu. Le rejista iphinde ikhombise ukuthi kuzwakala nini unqenqema lwe-RI. |
| I-DCD | MMUART_ _PADS_MODEM MMUART_ _FABRIC_MODEM | In | Ukutholwa Kwenkampani Yenethiwekhi. Lesi siginali ephezulu esebenzayo okokufaka okubonisa lapho idivayisi enamathiselwe (imodemu) ithole inkampani yenethiwekhi. I-Core16550 idlulisela lolu lwazi ku-CPU ngerejista Yesimo Semodemu. Le rejista iphinde ikhombise uma isignali ye-DCD ishintshile kusukela ngesikhathi sokugcina irejista ifundwa. |
Qaphela
- Amagama embobo anegama lesibonelo se-MMUART njengesiqalo, isb. MMUART_ _TXD_RXD.
- Indwangu 'uxhumano oluyinhloko' amagama ezimbobo zokufakwayo ane-“F2M” njengesijobelelo, isb. MMUART _ _RXD_F2M.
- Amagama ezimbobo zendwangu 'uxhumano olungeziwe' ane-“I2F” njengesijobelelo, isb. MMUART_ _TXD_RXD_I2F.
- Amagama ezimbobo okukhiphayo nokunika amandla okukhiphayo amandla ane-“M2F” kanye ne-“M2F_OE” njengesijobelelo, isb. MMUART_ _TXD_RXD_M2F kanye ne-MMUART_ _ TXD_RXD_M2F_OE.
- Izimbobo ze-PAD ziphromothwa ngokuzenzakalelayo ukuthi zibe phezulu kulo lonke uhlelo lokuklama.
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Ukucushwa kwe-Microsemi SmartFusion2 MSS MMUART [pdf] Umhlahlandlela Womsebenzisi Ukucushwa kwe-SmartFusion2 MSS MMUART, Ukucushwa kwe-MSS MMUART, Ukucushwa kwe-MMUART |
