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FDA903D unable to play audio out on custom hardware

Rohit Rajapure
Associate II

Hello All, 

We have designed our own custom hardware using SPC582bxx automotive controller and FDA903D audio amplifier. 

We built the code test the audio amplifier, code is very simple to play audio. We have used SPC582Bxx Engine simulator code and modified the amplifier Enable and I2S pins as per our design code remains the same. Through software side we are handling the Enable pins. As per below we have set enable pins,

Enable_1 as set clear (0)

Enable_2 as set clear (0)

Enable_3 as set (1)

Enable_4 as set clear (0)

code looks okay, but we are enable to play audio. 

Can anyone help us to solve this issue as early as possible. 

Do we missing wave file programming or any other procedure to bring the board active please let us know 

Let us know any other information required.

Thanks and Regards

Rohit R

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