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Can 2 module using DMA at the same application

I set HAL_UART_DMA = TURE, then the uart using DMA at first. At the same time may application also using DMA to  transfer Data. But the application will do not work at all, if  my DMA_Init function is called even the DMA operation do not be called.

So I wonder.  If there is only 1 module to using DMA in one application? And Do the BLE stack using DMA?