No sound from codec LINEOUT.

[CzyzyK]

Im using LPC55s36 and example i2s_dma_transfer. I changed pins neccesary, yet i hear no sound out of LINEOUT. How i can fix it or i got faulty board?

[Harry_Zhang]

Hi @CzyzyK 

You can observe the output effect through an oscilloscope.

According to the schematic, you can measure these three signals.

The above is the result of my test, you can refer to it.

BR

Hang