I-Merrillchip Entsha & Eyoqobo esitokweni Izingxenye ze-elekthronikhi ezihlanganisiwe zesekethe IC DS90UB928QSQX/NOPB

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I-FPDLINK ibhasi elihamba ngesivinini esihlukile eliklanywe i-TI, ikakhulukazi elisetshenziselwa ukudlulisa idatha yesithombe, njengekhamera nedatha yokubonisa.Izinga lihlala liguquguquka, ukusuka kumugqa wokuqala odlulisa izithombe ezingu-720P@60fps ukuya emandleni amanje okudlulisa u-1080P@60fps, nama-chips alandelayo asekela izinqumo zesithombe eziphakeme nakakhulu.Ibanga lokuhamba nalo lide kakhulu, lifinyelela cishe ku-20m, okwenza lilungele ukusetshenziswa kwezimoto.

I-FPDLINK inesiteshi esihamba phambili esinesivinini esikhulu sokudlulisa idatha yesithombe esinesivinini esikhulu kanye nengxenye encane yedatha yokulawula.Kukhona neshaneli ehlehlayo enesivinini esiphansi uma kuqhathaniswa ukuze kudluliswe ulwazi lokulawula ukuhlehla.Ukuxhumana okuya phambili nangemuva kwakha isiteshi sokulawula esinezinhlangothi ezimbili, esiholela ekwakhiweni okuhlakaniphile kwe-I2C ku-FPDLINK okuzoxoxwa ngakho kuleli phepha.

I-FPDLINK isetshenziswa ne-serializer kanye ne-deserializer kuhlanganiswe ndawonye, ​​i-CPU ingaxhunywa ku-serializer noma i-deserializer, kuye ngohlelo lokusebenza.Isibonelo, ohlelweni lokusebenza lwekhamera, inzwa yekhamera ixhuma ku-serializer futhi ithumele idatha ku-deserializer, kuyilapho i-CPU ithola idatha ethunyelwe kusukela ku-deserializer.Kuhlelo lokusebenza oluboniswayo, i-CPU ithumela idatha ku-serializer bese i-deserializer ithola idatha ku-serializer futhi iyithumele esikrinini se-LCD ukuze iboniswe.

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I-i2c ye-CPU ingase ixhunywe ku-serializer noma ku-i2c ye-deserializer.I-chip ye-FPDLINK ithola ulwazi lwe-I2C oluthunyelwe yi-CPU futhi idlulisela ulwazi lwe-I2C ngakolunye uhlangothi nge-FPDLINK.Njengoba sazi, kuphrothokholi ye-i2c, i-SDA ivunyelaniswa nge-SCL.Ezinhlelweni ezijwayelekile, idatha ixhunywe onqenqemeni olukhuphukayo lwe-SCL, okudinga ukuthi inkosi noma isigqila silungele idatha emaphethelweni awehlayo e-SCL.Kodwa-ke, ku-FPDLINK, njengoba ukudluliswa kwe-FPDLINK kuphelelwe isikhathi, ayikho inkinga lapho inkosi ithumela idatha, ngokuvamile isigqila sithola idatha ngemva kwamawashi ambalwa kunokuba inkosi iyithumele, kodwa kunenkinga lapho isigqila siphendula inkosi. , isibonelo, lapho isigqila siphendula inkosi nge-ACK lapho i-ACK idluliselwa enkosini, sekudlule isikhathi esithunyelwe yisigqila, okungukuthi isivele idlulile ekubambezelekeni kwe-FPDLINK futhi kungenzeka ukuthi iphuthelwe ukuphakama. umkhawulo we-SCL.

Ngenhlanhla, umthetho olandelwayo we-i2c ucabangela lesi simo.I-i2c icacisa indawo ebizwa ngokuthi i-i2c stretch, okusho ukuthi isigqila se-i2c singadonsa i-SCL phansi ngaphambi kokuthumela i-ACK uma ingakalungi ukuze umnikazi wehluleke uma ezama ukudonsa i-SCL phezulu ukuze inkosi iqhubeke izama donsa i-SCL phezulu bese ulinda, Ngakho-ke lapho sihlaziya i-waveform ye-i2c ohlangothini lwe-FPDLINK Slave, sizothola ukuthi isikhathi ngasinye lapho ingxenye yekheli lesigqila ithunyelwa, kuba namabhithi angu-8 kuphela, futhi i-ACK izophendulwa kamuva.

I-chip ye-TI's FPDLINK isebenzisa lesi sici ngokugcwele, esikhundleni sokuvele idlulisele phambili i-i2c waveform eyamukelwe (okungukuthi ukugcina izinga le-baud elifana nomthumeli), ithumela kabusha idatha etholiwe ngenani le-baud elibekwe ku-chip ye-FPDLINK.Ngakho-ke lokhu kubalulekile ukuqaphela lapho uhlaziya i-i2c waveform ohlangothini lwe-FPDLINK Slave.Izinga le-CPU i2c baud lingase libe ngu-400K, kodwa izinga le-i2c le-baud ohlangothini lwezinceku ze-FPDLINK ngu-100K noma u-1M, kuye ngezilungiselelo eziphakeme neziphansi ze-SCL ku-chip ye-FPDLINK.