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Hi Wooshin, BT chip on Smart3 is BT4.2. I am not sure about other SKB STB models, but SWAN's BT module support 5.0. More, in the beginning of Smart3 project, DPLE (Data Packet Length Extension) is removed for UEI RCU. Does it cause any problem for voice transmission ? Regards, Kerwin |
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Hi Kerwin, As discussed, contact cypress and share patch information for packet drop. Thanks |
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Hi Kerwin, Do you have any update ? |
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Hi Wooshin, We don't receive response from Cypress yet. However, there is an alternative solution to extend data rate for BLE connections. It was used for iSet to transmit EDID data. Jerry will upload a test image on ALT FTP server. Thank you ~ |
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Hi Wooshin, SD Test image link: http://altserver01.iptime.org/release_by_fxn/tmp/smart3_rcukr01/usb_bfx-at100_V15.532.920.zip # su # getprop ro.vendor.vasott.version k000b-532r20pkr01_SD-20220406 Jerry voice.png (107,693 bytes) |
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Hi Jerry, I have shared firmware with SKB. If i get feedback from them, i will inform you. Thanks. |
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Hi jerry, SKB has checked test firmware, there is no packet loss. But, SKB found new issue that connection interval is changed from 10ms to 11.25ms after GATT connection. It is not found in old version (V15.532.921), 10 ms interval should be keep by scenario of KIZ RCU. Please check it. |
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Hi Wooshin, SD Test image link: http://altserver01.iptime.org/release_by_fxn/tmp/smart3_rcukr01_1/usb_bfx-at100_V15.532.920.zip # su # getprop ro.vendor.vasott.version k000b-532r20pkr01_1_SD-20220406 Jerry connection_interval.png (99,481 bytes) |
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Hi Jerry, Test image is confirmed from SKB manager. Please commit your code and share commit message and id to me. Thanks. |
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Hi Wooshin , commit id: a3062cf1b353cb933758a42bded156c63e335244 [BFXBTF-431] Fixed voice packet loss symptoms(Improved lack of BT Bandwidth) Jerry |
- yk.jung ( (ALTech) Younkwang Jung ) developer
