USB device : Transmitted data on EP1 shows ZLP sometimes
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2018-02-06 1:26 AM
Posted on February 06, 2018 at 10:26
Hi,
I am using STM32F401RE controller with DFU_Standalone stack for my USB device application.I have made changes wherever required in stack while porting and it is working fine.but when I stop my application and again start instead of data on EP1 I see ZLP.
I have debugged through stack but it is loading right value data using HAL_PCD_EP_Transmit function and I am also getting USB_OTG_DIEPINT_XFRC interrupt.
Can anyone please help me on this?
#usb #usb-device
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