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Bluetooth SDK

tayo
Level 4
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Level 4

Hello Infineon support team.

 

We are evaluating a sample application "Audio_Headset_and_Speaker" using CYW920721B2EVK-02.
<Board configuration>
-CYW9BTAUDIO2(J9) <-- Mic
-CYW9BTAUDIO2(J10) --> Headphone
-CYW9BTAUDIO2(J6 position)
short: 9-10, 11-12
open: 1~9

<Test Environment>
MIC/Headphone <--> CYW920721B2EVK-02 <--BT Connection--> pair device(mobile phone A) <--Calling--> mobile phone B

Now we are facing following phenomenon during calling.
- The headphone output works file.
- However, No voice output from mobile phone B. We suspected the mic input does not work well.

 

■Questions
1) Are the mic/J9 connection and J6 configuration is correct?

2) To enable line input path for the mic, we guess some registers of audio codec "CS47L35" need to configure.

Ex) "R768(0x0300) Input_Enables" register .
Does this sample application configure those registers?

 

Thanks,
Tayo

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1 Solution
DheerajPK_41
Moderator
Moderator 750 replies posted 500 likes received 500 replies posted
Moderator

Hi,

Could you please check by shorting below jumpers. 

J19 :1-2,

J6: 3-4, 5-6, 7-8, 9-10

 

When you get the phone call, you may be able to respond through the J10 itself.

Thanks,

-Dheeraj.P.K

View solution in original post

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2 Replies
DheerajPK_41
Moderator
Moderator 750 replies posted 500 likes received 500 replies posted
Moderator

Hi,

Could you please check by shorting below jumpers. 

J19 :1-2,

J6: 3-4, 5-6, 7-8, 9-10

 

When you get the phone call, you may be able to respond through the J10 itself.

Thanks,

-Dheeraj.P.K

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tayo
Level 4
10 questions asked 100 sign-ins 50 sign-ins
Level 4

Hello Dheeraj-san

Thank you for your comment.

We will retest with the board configuration.

Thanks,

Tayo

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