Renesas MN4 Dokumentacja Pobierz pdf (Strona 41)

V850E2/MN4 USB CDC (Communication Device Class) Driver

R01AN0010EJ0101 Rev.1.01 Page 41 of 117

Feb 01, 2012

usbf850_data_send

[Synopsis]

USB data transmit processing for bulk/interrupt in endpoints

[C language format]

INT32 usbf850_data_send(UINT8 *data, INT32 len, INT8 ep)

[Parameters]

Parameter Description

UINT8 *data Pointer to transmit data buffer

INT32 len Transmit data length

INT8 ep Endpoint number of the endpoint to be used for data transmission

[Return Value]

Symbol Description

len (>=0) Size of the data that was transmitted normally.

DEV_ERROR Abnormal termination

[Function]

This function transfers data from the transmit data buffer to the FIFO for the specified endpoint, one byte at a time.

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Renesas MN4 Dokumentacja Strona 41