The program STM32F745 USB + SAI hangs up

[Alexsandr Golovanov]

Hello

There is a working project of an audio switch made on STM32L452. Then we needed another USB port and additional performance. Therefore, we shift the project to STM32F745. The algorithm works well on the STM32L452. But on the processor STM32F745, as soon as I established communication with the computer, the processor immediately drops when processing SAI. CubeMX 4.27, STM32CubeF7, IAR8.