TLV320AIC3120: loop back test using PSOC

Dibyarekha Maharana

Tool/software:

I am using the TLV320AIC3120 codec with PSOC62. Here with I am attaching the project. I want to test loopback. I am giving input as 1KHz sine tone but i am getting square waves.

Please help me.

Please check audio.c for register values.

i am doing loopback in wclk_isr().

10 months ago

0 Mir Jeffres 10 months ago

TI__Mastermind 19080 points

Hi,

Can you attach scope shots that show your square wave output vs input, as well as tell me your clock settings? I see in audio.c that you are using the beep generator at some point, is this your sine wave source or are you giving a sine on the input pins and expecting on the output?

Best,
Mir

+1 Dibyarekha Maharana 10 months ago in reply to Mir Jeffres

Prodigy 10 points

I am giving sine input externally using audio analyzer to MIC1LP and checking the output at HPOUT using scope . In my code I changed the routing to HPOUT. Now it is coming. I am able to hear the 1KHz tone also

Audio

Audio forum

TLV320AIC3120: loop back test using PSOC