STM32 G0'UART works in RS485 +DMA mode, when enabling HAL_UART_Receive_DMA/IT, systick would stop working.

[RGao.1]

When UART works in RS485+DMA mode, after initial, HAL_UART_Receive_DMA/IT enalbe manually, I fould systick woundn't work any more.

Who meets this issues or has any advice, comment is welcomed, thanks in advance.

UART configuration in MXCube