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R_SCIn_Serial_Send

Starts SCI transmission (asynchronous mode).

Remark 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.

Remark 2.      When performing a SCI transmission, R_SCIn_Start must be called before this API function is called.

 

[Syntax]

#include       "r_cg_macrodriver.h"

MD_STATUS   R_SCIn_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 tx_num specification