ʻO ka papa hoʻonohonoho hoʻonohonoho (HCI) kahi ʻāpana lahilahi e lawe ana i nā kauoha a me nā hanana ma waena o nā mea hoʻokipa a me nā mea hoʻokele o ka pūʻulu protocol Bluetooth. I loko o kahi palapala noi pūnaewele maʻemaʻe, hoʻokō ʻia ka papa HCI ma o kahi protocol transport e like me SPI a i ʻole UART.
HCI Interface
ʻO ke kamaʻilio ʻana ma waena o kahi Host (kahi kamepiula a i ʻole MCU) a me kahi Host Controller (ka chipset Bluetooth maoli) ma hope o ka Host Controller Interface (HCI).
Hōʻike ʻo HCI i ke ʻano o ka hoʻololi ʻana i nā ʻikepili asynchronous, hanana, asynchronous a synchronous. Hoʻohana ʻia nā ʻeke Asynchronous (ACL) no ka hoʻoili ʻana i ka ʻikepili, ʻoiai ʻo nā pūʻolo synchronous (SCO) e hoʻohana ʻia no ka Leo me ka Headset a me nā Profile Hands-Free.
Pehea ka hana ʻana o Bluetooth HCI?
Hāʻawi ka HCI i kahi mana kauoha i ka mea hoʻokele baseband a me ka luna loulou, a me ke komo ʻana i ke kūlana ʻenehana a me nā papa inoa mana. ʻO ka mea nui, hāʻawi kēia pānaʻi i kahi ʻano like ʻole o ke komo ʻana i nā kaha baseband Bluetooth. Aia ka HCI ma nā ʻāpana 3, ka Host - Transport Layer - Host Controller. He kuleana ʻokoʻa ko kēlā me kēia ʻāpana i ka ʻōnaehana HCI.
Loaʻa iā Feasycom nā modula e kākoʻo ana i ka HCI Bluetooth:
Hoʻohālike: FSC-BT825B
- Manaʻo Bluetooth: Bluetooth 5.0 ʻano ʻelua
- Dimension: 10.8mm x 13.5mm x 1.8mm
- Nā kiʻi: SPP, BLE (Maʻamau), ANCS, HFP, A2DP, AVRCP, MAP (koho)
- Ili: UART, PCM
- Nā palapala hōʻoia:FCC
- Nā mea koʻikoʻi: Bluetooth 5.0 Dual-Mode, Ka nui liʻiliʻi, ke kumu kūʻai
