HFP_HF_DEMO

[Sam Anderson]

Hi,

I am trying to get my esp32 up to run the HFP_HF_DEMO example. I want to establish a voice channel and play the sine wave with the default settings of this example. 

I am able to get the microcontroller to connect to my iphone no problem, and I am able to do actions, eg: 'f' for pickup call and it seems to negotiate codec as well.

AG Indicator Status  | INDEX 5: status 0x01, 'signal'
[00:03:28.056] CMD => 35 0C 05 01 81 00 01 00
[00:03:33.976] LOG -- hfp_hf_demo.c.197: USER:'b'
Establish Audio connection to device with Bluetooth address 04:2E:C1:67:98:6D...
ENTERED HFP_HF.c ESTABLISH
[00:03:33.986] LOG -- hfp.c.283: HFP_TX AT+BCC
[00:03:33.986] ACL => 81 00 10 00 0C 00 08 2B 09 EF 0E 00 41 54 2B 42 43 43 0D 40
After Establish HFP+HF.c Subroutine
[00:03:34.006] EVT <= 13 05 01 81 00 01 00
[00:03:34.006] ACL <= 81 20 0E 00 0A 00 42 00 0B EF 0D 0D 0A 4F 4B 0D 0A 9A
[00:03:34.006] LOG -- hfp.c.2515: HFP_HF_RX: '\r\nOK\r\n'
[00:03:34.016] LOG -- hfp.c.1422: command string 'OK', handsfree 1 -> cmd id 3
[00:03:34.016] CMD => 35 0C 05 01 81 00 01 00
#FEAT# ATTE2 status:0

The iphone doesn't seem to want to open the voice channel and allow the esp32 to be a microphone. I have been trialing this code in a phone call with another phone and made sure the esp32 is selected.

Any suggestions on how to get the iphone to agree?

-Sam 

[Matthias Ringwald]

Hi Sam

The snippet below looks good but it doesn't contain the complete audio setup. In general, only the phone can initiate the audio setup.
However, you get the message "#FEAT# ATTE2 status: 0" appears.
BTstack does not emit such a message, so it might be an error message from the ESP32 Bluetooth Controller.

Please capture a complete packet log from boot, use tool/create_packet_log.py to convert it to .pklg that can be inspected with Wireshark, zip both files and post them here for a quick check.

Best regards,
Matthias

> --
> You received this message because you are subscribed to the Google Groups "btstack-dev" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to btstack-dev...@googlegroups.com.
> To view this discussion visit https://groups.google.com/d/msgid/btstack-dev/0fcd98c2-d4d4-4364-836e-bc2ce944ec0cn%40googlegroups.com.