GitHub - igor-liferenko/usb

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hid1_11.pdf		hid1_11.pdf
usb_20.pdf		usb_20.pdf
usbcdc11.pdf		usbcdc11.pdf

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UENUM = EP3;
while (!(UEINTX & _BV(TXINI))) { }
UEINTX &= ~_BV(TXINI);
UEDATX = 0xA1; // ?
UEDATX = 0x20; // table 5 in CDC spec?
UEDATX = 0x00; @+ UEDATX = 0x00; // ?
UEDATX = 0x00; @+ UEDATX = 0x00; // ?
UEDATX = 0x02; @+ UEDATX = 0x00; // ?
UEDATX = ?;
UEDATX = ?;
UEINTX &= ~_BV(FIFOCON);

CDC\S6.3.5

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