Ukucushwa kwe-SmartFusion2 MSS GPIO
Imaniwali yosebenzisayo
Isingeniso
I-SmartFusion2 Microcontroller Subsystem (MSS) ihlinzeka nge-GPIO hard peripheral (APB_1 ibhasi elincane) esekela 32 General Purpose I/Os.
Kukhanvasi ye-MSS, kufanele uvule (okuzenzakalelayo) noma ukhubaze isenzakalo se-GPIO ngokusekelwe ekutheni iyasetshenziswa yini ohlelweni lwakho lokusebenza lwamanje. Uma kukhutshaziwe, isibonelo se-GPIO sibanjwe kabusha (isimo samandla aphansi kakhulu). Ngokuzenzakalelayo, ayikho i-GPIO esetshenziswayo lapho unike amandla isenzakalo se-GPIO okokuqala. Qaphela ukuthi ama-MSIO abelwe isenzakalo se-GPIO abiwa namanye ama-peripheral e-MSS. Lawa ma-I/O abelwe ayatholakala ukuze kuxhunywe amanye ama-peripheral uma isenzakalo se-GPIO sikhutshaziwe noma uma izimbobo zesibonelo ze-GPIO zixhunywe kwendwangu ye-FPGA. Qaphela ukuthi ama-GPIO acushwa ngawodwana ku-GPIO peripheral configurator. Ukuziphatha okusebenzayo kwe-GPIO ngayinye (okungukuthi ukuziphatha kokuphazamisa) kufanele kuchazwe ezingeni lesicelo kusetshenziswa i-SmartFusion2 MSS MMUART Driver ehlinzekwa yi-Microsemi. Kulo mbhalo, sichaza ukuthi ungazilungiselela kanjani izimo ze-MSS GPIO futhi uchaze ukuthi amasiginali we-peripheral axhumeke kanjani. Ukuze uthole imininingwane eyengeziwe mayelana ne-MSS GPIO hard peripherals, sicela ubheke ku-SmartFusion2 User Guide
Izinketho zokumisa
Setha/Hlela Kabusha Incazelo - Kunamaqembu amane alinganayo ama-GPIO ayisishiyagalombili lilinye libe ngu-32. Ungachaza umthombo ofanayo kanye nesimo (Setha noma Hlela Kabusha) kuma-GPIO ayisishiyagalombili eqenjini. Kunezinketho ezimbili zomthombo Wokusetha/Ukusetha Kabusha:
- Amarejista Esistimu - Iqembu ngalinye linerejista yesistimu ehlukile yale njongo. Amarejista esistimu angafinyelelwa nge-firmware. Isetha i-MSS_GPIO_ _SOFT_RESET irejista yesistimu izosetha kabusha wonke ama-GPIO akulobo bubanzi abe inani elichazwe isimo sokusetha kabusha.
- Indwangu ye-FPGA – Isiginali ibizwa nge-MSS_GPIO_RESET_N.
Umfanekiso 1-1 Izinketho Zokucushwa ze-SmartFusion2 MSS GPIO
Ithebula Lokwabiwa Kwezimpawu Ze-GPIO
Isakhiwo se-SmartFusion2 sinikeza i-schema eguquguquka kakhulu yokuxhuma amasiginali we-peripherals kuma-MSIO noma indwangu ye-FPGA. Sebenzisa ithebula lesignali yokumisa ukuze uchaze ukuthi i-peripheral yakho ixhumeke kuphi kuhlelo lwakho lokusebenza. Leli thebula lomsebenzi ozokwenziwa linamakholomu alandelayo:
I-ID ye-GPIO - Ikhomba inkomba ye-GPIO - 0 ukuya ku-31 - kumugqa ngamunye.
Isiqondiso - Ikhombisa uma ngabe i-GPIO imisiwe njenge-Input, Output, Tristate noma i-Bidirectional. Sebenzisa ukudonsa ukuze usethe isiqondiso se-GPIO.
Iphinikhodi yephakheji - Ibonisa iphinikhodi yephakheji ehlotshaniswa ne-MSIO lapho isignali ixhunywe ku-MSIO.
Ukuxhumana - Sebenzisa uhlu lokudonsela phansi ukuze ukhethe ukuthi isignali ixhunywe kwi-MSIO noma indwangu ye-FPGA. Kunezinketho ezimbili - A no-B -, esimweni ngasinye, ongakhetha kuzo.
I-MSIO - Kunezabelo ezimbili ezihlukene ze-I/O ezingenzeka ngayinye
I-GPIO: IO_A kanye ne-IO_B. Ungakhetha noma yikuphi bese uhlola iphinikhodi yephakheji. Ithulithiphu phezu kwephinikhodi yephakheji ikhombisa ukuthi imaphi amanye ama-peripheral angasebenzisa i-MSIO efanayo. Ungasebenzisa izinketho ze-IO_A ne-IO_B ukuze uxazulule izingxabano. Isibonelo, ku-IO_A isivele isetshenziswa enye i-peripheral, ungakhetha i-IO_B. Kwezinye izinhlanganisela zedivayisi/iphakheji, kokubili izinketho ze-IO_A kanye/noma ze-IO_B zingase zingatholakali.
Indwangu ye-FPGA - Kukhona imisebenzi emibili ehlukene engenzeka ku-GPIO ngayinye kwindwangu ye-FPGA: - I-Fabric_A ne-Fabric_B. Ungasebenzisa izinketho ze-Fabric_A ne-Fabric_B ukuze uxazulule izingxabano. Isibonelo, ku-Fabric_A isivele isetshenziswa enye i-peripheral, ungakhetha i-Fabric_B. Kwamanye amadivayisi, kokubili izinketho ze-Fabric_A kanye/noma ze-Fabric_B zingase zingatholakali. Ukuxhumana Okwengeziwe - Sebenzisa ibhokisi lokuhlola Izinketho Ezithuthukile ukuze view izinketho ezengeziwe zokuxhumana:
- Hlola inketho Yendwangu ukuze ubone kwindwangu ye-FPGA isignali exhunywe ku-MSIO.
Ukuxhumana Preview
I-Connection Preview Iphaneli kungxoxo ye-MSS GPIO Configurator ibonisa umfanekiso view kokuxhumana kwamanje komugqa wesignali ogqanyisiwe (Umfanekiso 3-1).
Umfanekiso 3-1 Ukuxhumana Preview Iphaneli
Ukungqubuzana Kwezinsiza
Ngenxa yokuthi ama-peripherals e-MSS - MMUART, I2C, SPI, CAN, GPIO, USB kanye ne-Ethernet MAC - abelana ngezinsiza zokufinyelela zendwangu ye-MSIO ne-FPGA, ukumiswa kwanoma iyiphi yalezi zindawo kungase kubangele ukungqubuzana kwensiza lapho ulungiselela isenzakalo se-peripheral yamanje. . Ama-peripheral configurator ahlinzeka ngezinkomba ezicacile lapho kuphakama ukungqubuzana okunjalo.
Izinsiza ezisetshenziswa umphumela we-peripheral olungiselelwe ngaphambilini ezinhlotsheni ezintathu zempendulo kusilungiselelo samanje se-peripheral:
Ulwazi - Uma insiza esetshenziswa enye i-peripheral ingangqubuzani nokucushwa kwamanje, isithonjana solwazi siyavezwa, ku-Connectivity Pre.view iphaneli, kuleyo nsiza. Ithiphu yamathuluzi esithonjaneni ihlinzeka ngemininingwane mayelana nokuthi iyiphi i-peripheral esebenzisa leyo nsiza.
Isexwayiso/Iphutha – Uma insiza esetshenziswa enye i-peripheral ingqubuzana nokucushwa kwamanje, kuvela isithonjana sesixwayiso noma iphutha, kokuthi Connectivity Pre.view iphaneli, kuleyo nsiza. Ithiphu yamathuluzi esithonjaneni ihlinzeka ngemininingwane mayelana nokuthi iyiphi i-peripheral esebenzisa leyo nsiza. Uma amaphutha eboniswa awukwazi ukwenza ukumisa kwamanje. Y
ungakwazi ukuxazulula ukungqubuzana ngokusebenzisa ukucushwa 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 ukumisa ngokulungisa kabusha noma iyiphi yezinto ezithinta umngcele ezidala ukungqubuzana. Izihleli ze-peripheral zisebenzisa imithetho elandelayo ukuze zinqume 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 Impendulo Example
I-peripheral ye-I2C_1 iyasetshenziswa futhi isebenzisa i-PAD yedivayisi eboshwe ukupakisha iphinikhodi ye-V23. Ukulungisa i-GPIO peripheral (GPIO_0) kangangokuthi imbobo ye-GPIO_0 ixhunywe ku-MSIO kuholela iphutha. Umfanekiso 4-1 ubonisa isithonjana sephutha esiboniswe kuthebula lesabelo sokuxhuma embobeni ye-GPIO_0.
Umfanekiso 4-1 Iphutha Liboniswa Kuthebula Lokunikezwa Kokuxhumana
Umfanekiso 4-2 ubonisa isithonjana sephutha esiboniswe ekuqaleniview iphaneli kusisetshenziswa se-PAD sembobo ye-GPIO_0.
Umfanekiso 4-2 Iphutha liboniswe ku-Preview Iphaneli
Ulwazi Impendulo Example
I-peripheral ye-I2C_1 iyasetshenziswa futhi isebenzisa i-PAD yedivayisi eboshwe ukupakisha iphinikhodi ye-V23. Ukulungisa iperipheral ye-GPIO ukuze imbobo ye-GPIO_0 ixhumeke kwindwangu ye-FPGA akubangeli ukungqubuzana. Nokho, ukukhombisa ukuthi i-PAD ihlotshaniswa nembobo ye-GPIO_0 (kodwa ayisetshenziswanga kuleli cala), isithonjana solwazi siboniswa ngaphambili.view iphaneli (Figure 4-3). Ithulithiphu ehambisana nesithonjana inikeza incazelo yokuthi insiza isetshenziswa kanjani (I2C_1 kulokhu).
Umfanekiso 4-3 Isithonjana solwazi ku-Preview Iphaneli
Incazelo Yembobo
Ithebula 5-1 Incazelo Yembobo ye-GPIO
| Igama Lembobo | Port Group | Incazelo |
| GPIO_ | GPIO_PADS/GPIO_FABRIC | Isignali ye-GPIO |
Qaphela:
- I/O 'uxhumano oluyinhloko' amagama ezimbobo ane-IN, OUT, TRI noma BI njengesijobelelo esisuselwe endaweni ekhethiwe, isb GPIO_0_IN.
- Indwangu 'uxhumano oluyinhloko' amagama ezimbobo zokufakwayo ane-“F2M” njengesijobelelo, isb GPIO _8_F2M. • Amagama ezimbobo zendwangu 'uxhumano olungeziwe' ane-“I2F” njengesijobelelo, isb GPIO_8_I2F.
- Amagama ezimbobo okukhiphayo nokunika amandla okukhiphayo amandla ane-“M2F” kanye ne-“M2F_OE” njengesijobelelo, isb GPIO_8_M2F kanye ne-GPIO_ 8_M2F_OE. • Izimbobo ze-PAD ziphromothwa ngokuzenzakalelayo ukuthi zibe phezulu kulo lonke uhlelo lokuklama.
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Ukucushwa kwe-Microsemi SmartFusion2 MSS GPIO [pdf] Imaniwali yosebenzisayo I-SmartFusion2 MSS GPIO Configuration, SmartFusion2 MSS, GPIO Configuration, Configuration |
