Nucleo-H745ZI-Q collegata a pmod I2S2

[CiStoProvando]

Salve,
 il problema che riscontro con il seguente codice è quello di vedere in debug il caricamento dell'array tx da 4 a 7.
 Anche provando a debuggare line by line vedo che il codice entra solo nella funzione  HAL_I2SEx_TxRxCpltCallback
senza mai richiamare la (half) . 

Le due funzioni citate sopra dovrebbero attivare in modalità interrupt
HAL_I2SEx_TransmitReceive_DMA (&hi2s2, txBuf, rxBuf, 4) 

[KDJEM.1]

Hello @CiStoProvando and welcome to the Community 🙂,

Thanks to develop your posts in English so it helps us, and the users of our community understand your question and try to help you.

Nucleo-H745ZI-Q connected to pmod I2S2

Greetings,

the problem I encounter with the following code is to see the loading of the tx array from 4 to 7 in debug. Even trying to debug line by line I see that the code only enters the HAL_I2SEx_TxRxCpltCallback function without ever recalling the (half) .

The two functions mentioned above should activate in interrupt mode HAL_I2SEx_TransmitReceive_DMA (&hi2s2, txBuf, rxBuf, 4).

Could you please check  the interrupt priorities?

I recommend you the following examples which use I2S in DMA mode:

https://github.com/STMicroelectronics/STM32CubeH7/blob/ccb11556044540590ca6e45056e6b65cdca2deb2/Drivers/BSP/STM32H7B3I-DK/stm32h7b3i_discovery_audio.c

https://github.com/STMicroelectronics/STM32CubeH7/blob/ccb11556044540590ca6e45056e6b65cdca2deb2/Drivers/BSP/STM32H7B3I-EVAL/stm32h7b3i_eval_audio.c

Thank you.

Kaouthar