I design a HID USB device with the LPC2468. According to the USB specification,when processing the Setup transfer, a zero length packet should be sended to the host at the status stage .I want to know the flow about sending the zero length packet
Thanks
Hi Li,
If you are starting a new USB-based application, it is recommended considering a newer LPC device, because LPC2xxx are now legacy devices.
Regarding zero-length packet, it may depend of the used USB stack; you could take a look at the following links for reference:
http://www.keil.com/forum/16271/arm7-lpc2148-amp-usb-communication/
https://www.nxp.com/docs/en/application-note/AN10703.pdf
Hope this will be useful for you.
Best regards!
/Carlos
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Hi, Carlos,
Thank you very much.My problem has been solved.