R_UARTFn_Send

Starts UARTF data transmission.

Remarks 1.

This API function repeats the byte-level UARTF transmission from the buffer specified in argument tx_buf the number of times specified in argument tx_num.

Remarks 2.

When performing a UARTF transmission, R_UARTFn_Start must be called before this API function is called.

Remarks 3.

If the asynchronous serial interface LIN-UART (UARTF) is used in expansion bit mode, then store the data to send in the buffer specified by argument tx_buf, in the following format.

"8-bit data", "Expansion bit", "8-bit data", "Expansion bit", ...

[Syntax]

MD_STATUS   R_UARTFn_Send ( uint8_t * const tx_buf, uint16_t tx_num );

Remark

n is the channel number.

[Argument(s)]

I/O	Argument	Description
I	uint8_t * const tx_buf;	Pointer to a buffer storing the transmission data
I	uint16_t tx_num;	Total amount of data to send

[Return value]

Macro	Description
MD_OK	Normal completion
MD_ARGERROR	Invalid argument specification
MD_DATAEXISTS	Executing transmission process