4.4.1.1.2 Functions

BUFFER_RETURN_CODE_t CIRCBUF_Enqueue (CIRCULAR_BUFFER_t *buffer, uint8_t data)

Adds input data to circular buffer if there is space available.

BUFFER_RETURN_CODE_t CIRCBUF_Dequeue (CIRCULAR_BUFFER_t *buffer, uint8_t *data)

Pulls data from the circular buffer if it's available.

bool CIRCBUF_Empty (CIRCULAR_BUFFER_t *buffer)

Checks if the circular buffer is empty.

bool CIRCBUF_Full (CIRCULAR_BUFFER_t *buffer)

Checks if the circular buffer is full.

uint16_t CIRCBUF_FreeSpace (CIRCULAR_BUFFER_t *buffer)

Returns the number of available bytes in the circular buffer.

void USB_CDCInitialize (void)

Initializes the CDC class.

RETURN_CODE_t USB_CDCRequestHandler (USB_SETUP_REQUEST_t *setupRequestPtr)

Performs handling of control transfers.

bool USB_CDCDataTerminalReady (void)

Checks if the Data Terminal Equipment bit has been set from the host.

void USB_CDCSetBaud (uint16_t baud)

Sets the data transfer baud rate for the CDC communication.

uint32_t USB_CDCGetBaud (void)

Gets the data transfer baud rate for the CDC communication.

void USB_CDCSetStopBits (USB_CDC_LINE_CODING_STOP_BITS_t numStopBits)

Sets the number of data transfer stop bits for the CDC communication.

USB_CDC_LINE_CODING_STOP_BITS_t USB_CDCGetStopBits (void)

Gets the number of data transfer stop bits for the CDC communication.

void USB_CDCSetParity (USD_CDC_LINE_CODING_PARITY_t parity)

Sets the data transfer parity for the CDC communication.

USD_CDC_LINE_CODING_PARITY_t USB_CDCGetParity (void)

Gets the data transfer parity for the CDC communication.

void USB_CDCSetDataBits (USD_CDC_LINE_CODING_DATA_BITS_t numDataBits)

Sets the number of data transfer data bits for the CDC communication.

USD_CDC_LINE_CODING_DATA_BITS_t USB_CDCGetDataBits (void)

Gets the number of data transfer data bits for the CDC communication.

void USB_CDCVirtualSerialPortInitialize (void)

Initializes the CDC Virtual Serial Port functionality.

RETURN_CODE_t USB_CDCVirtualSerialPortHandler (void)

Performs Virtual Serial Port writes using the CDC class.

CDC_RETURN_CODE_t USB_CDCRead (uint8_t *data)

Pulls data from the CDC receive buffer.

CDC_RETURN_CODE_t USB_CDCWrite (uint8_t data)

Adds data to the CDC transmit buffer.

bool USB_CDCTxBusy (void)

Checks if the transmit buffer is full.

void USB_CDCDataTransmitted (USB_PIPE_t pipe, USB_TRANSFER_STATUS_t status, uint16_t bytesTransferred)

Callback function called after the USB IN transaction started.

void USB_CDCDataReceived (USB_PIPE_t pipe, USB_TRANSFER_STATUS_t status, uint16_t bytesTransferred)

Callback function called after the USB OUT transaction started.