65 lines
3.4 KiB
ReStructuredText
Executable File
65 lines
3.4 KiB
ReStructuredText
Executable File
Central Project
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======================================
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:link_to_translation:`zh_CN:[中文]`
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1 Function Overview
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-------------------------------------
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This project show how pad work with main function: bluetooth a2dp source/avrcp tg ct/ble
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2 Code Path
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-------------------------------------
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demo:`./projects/bluetooth/central <https://gitlab.bekencorp.com/wifi/armino/-/tree/main/projects/bluetooth/central>`_
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build cmd:``make bk7258 PROJECT=bluetooth/central``
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2 project path
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----------------------------
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- central: ``project/bluetooth/central``
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3 a2dp source cli introduce
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-------------------------------------
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+--------------------------------------------------+---------------------------------------+
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| a2dp_player connect <xx:xx:xx:xx:xx:xx> | connect to soundbar |
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+--------------------------------------------------+---------------------------------------+
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| a2dp_player disconnect <xx:xx:xx:xx:xx:xx> | disconnect |
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+--------------------------------------------------+---------------------------------------+
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| a2dp_player play <xxx.mp3> | play mp3 |
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+--------------------------------------------------+---------------------------------------+
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| a2dp_player stop | stop play |
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+--------------------------------------------------+---------------------------------------+
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| a2dp_player pause | pause |
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+--------------------------------------------------+---------------------------------------+
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| a2dp_player resume | resume |
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+--------------------------------------------------+---------------------------------------+
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| a2dp_player abs_vol <xxx> | set remote absolute volume 0 ~ 127 |
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| | (depend on peer impl) |
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+--------------------------------------------------+---------------------------------------+
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4 a2dp source test procedure
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-------------------------------------
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| 1.Find a sdcard format exfat, copy project/bluetooth/central/1_qcs.mp3 to root dir. (Must be 16bits mp3)
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| 2.Insert sdcard and power on.
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| 3.Make soundbar enter pair mode.
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| 4.Input ``a2dp_player connect xx:xx:xx:xx:xx:xx`` (xx means soundbar addr).
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| 5.Input ``a2dp_player play xxx.mp3``
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| 6.Now you can here soundbar playing music.(You should play after connection complete as soon as possible, and don't stop, ref chapter 5)
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| 7.You can stop or pause when play, play when stop.
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5 compatibility describes
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| 1.In music playing scenario, some soundbars(e.g. JBL) would disconnect(JBL would power up bluetooth) link when stop(local a2dp_player stop or peer avdtp suspend) too long. log will show "bt_api_event_cb:Disconnected from xx:xx:xx:xx:xx:xx"
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| 2.Some soundbars(e.g. xiaomi) would not register avrcp playback and could express inconformitily status between local and peer.
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| 3.Some soundbars(e.g. xiaomi) would not report avrcp volume changed evt, so central could not know.
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| 4.Some soundbars(e.g. xiaomi) does not support absolute volume.
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6 Attention
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-------------------------------------
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| 1.Log would show "f_mount failed" or "read data crc error" when sdcard failed.
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