QCC5144固件.xuv格式，可以直接烧录使用
QCC5144固件.xuv格式，可以直接烧录使用，开发板上面，正常功能，按键6秒，power_on,再按3秒进入配对等
details of the FW, like it is ear bud / headset / ?
button details vol+ -,
led pins
function of buttons, else it will difficult to others to just go for it headset button details vol+ -,
led pins
function of buttons, else it will be difficult to others to just go for it ?
like from
https://www.52bluetooth.com/forum.php?mod=viewthread&tid=82700&extra=page%3D2
1. Based on the default source project (r00073 version) without modification
2. Press and hold the sysctrl button for 3 seconds to pair, press and hold for 6 seconds to clear the pairing list, short press to connect and disconnect audio
3. Supports USB audio sources and analog audio sources by default. The analog insertion detection port is PIO5 (insert low level), aux insertion priority
4. If the connection cannot be made, calibrate the frequency
5. If burned into qcc3050, A2DP has no sound, HFP sound is normal
6. Use 64M FLASH setting (according to the firmware size Judgment, minimum support 16M)
Note: calibration is required, otherwise the connection may fail or freeze. SBC aptx aptx-adaptive is supported by default. 学习 学习
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