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STM32U5G9 USB device ux_device_stack_initialize() error 18

Kelly3
Associate II

I am using STM32U5G9 implementing USB MSC device. When calling function ux_device_stack_initialize(), it returns error 18, which is correspond to UX_MEMORY_INSUFFICIENT.  This error happens line 397 of use core file  ux_device_stack_initialize.c.

if (endpoints_pool -> ux_slave_endpoint_transfer_request.ux_slave_transfer_request_data_pointer == UX_NULL)

{

status = UX_MEMORY_INSUFFICIENT;

break;

}

 

May I know how to fix this error?

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