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CC2564 A2DP volume up/down问题



hi 各位:

今天试了官方给的A3DP demo(CC256x MSP430 Bluetopia SDK v1.5 R2 Folder-->A3DPDemo_SNK),可以控制手机暂停、播放、上下曲,没法控制手机volume up 和down。

1、在发送volume up、down(函数:AUD_Send_Remote_Control_Command())的消息时,回调AUD_Event_Callback()收到ResponseCode 为AVRCP_RESPONSE_REJECTED(0x0A)。

  2、  而发送暂停、播放消息时,回调AUD_Event_Callback()收到ResponseCode 为AVRCP_RESPONSE_ACCEPTED(0x09)。

请问ACRVP是不支持音量大小调节指令么?

谢谢