STM32H503RB & Pmod I2S2 module problem

[sebxx4]

Hello, I have a problem with my NUCLEO H503RB. I'm trying to make it work with Pmod I2S2 module (ADC+DAC). For now I've connected only ADC via I2S1. This is my HW configuration:

I2S config:

GPDMA config:

Code:

No data stored:

 

As you can see, I have no data in the buffer. I've checked clocks and data line with scope and it's okay here. The DMA interrupt also fires, but requires I-Cache enabled. So what can I do with it?