R_SCIFAn_Serial_Send


Starts FIFO embedded SCI transmission (asynchronous mode).

Remarks 1.

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

Remarks 2.

When performing a SCI transmission, R_SCIFAn_Start must be called before this API function is called.

[Syntax]

MD_STATUS   R_SCIFAn_Serial_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