Hello,
I have a question regarding the CC256x STM32 Bluetopia SDK demo applications.
I use the components "CC256xCQFN+STM3240GEVAL+CC256XEM-STADAPT" and the sample application HFPDemo_AG.
I can connect and pair to a HFP headset device, also commands like RingIndication work (I hear a ringing sound at the headset output). When I try to accept a call on the headset (pushbutton pressed) no further action will be taken. I cannot start a voice transmission.
My question is: How can I accept a call enabling audio transmission over bluetooth or send some audio to the headset? In the HandsFreeProfileAPI documentation I found a prototype function "int BTPSAPI HFRE_Send_Audio_Data(unsigned int BluetoothStackID, unsigned int HFREPortID, Byte_t AudioDataLength, Byte_t *AudioData)", but this is not implemented in the sample code. Do I have to implement it myself or should the audio transmission already work after the command ManageAudio 1 with Return 0 -> Success?
Any ideas or suggestions?
Thanks in advance.
Regards
Tim