Hi
NXP provides the KSDK V2.0 software, which includes USB Stack for K64 product.
And there also with USB Stack V5.0 for K64 product.
I checked the USB Stack V5.0 CDC device demo, which call USB_Class_CDC_Send_Data() function to transmit 64 bytes data.
Customer could set flag variable at Virtual_Com_App() function of <virtual_com.c> file to check if the data was transmitted.
Customer could check detailed application code info at default path:
C:\Freescale\Freescale_BM_USB_Stack_v5.0\Src\example\device\cdc\virtual_com\bm\iar\dev_cdc_virtual_com_frdmk64f
Wish it helps
Have a great day,
Ma Hui
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