R_UARTn_Receive


Starts UART data reception.

Remarks 1.

This API function performs byte-level UART reception the number of times specified by the argument rx_num, and stores the data in the buffer specified by the argument rx_buf.

Remarks 2.

Actual UART reception starts after this API function is called, and R_UARTn_Start is then called.

[Syntax]

#include    "r_cg_macrodriver.h"
MD_STATUS   R_UARTn_Receive ( uint8_t * const rx_buf, uint16_t rx_num );

Remark

n is the channel number.

[Argument(s)]

I/O

Argument

Description

O

uint8_t   * const rx_buf;

Pointer to a buffer to store the received data

I

uint16_t  rx_num;

Total amount of data to receive

[Return value]

Macro

Description

MD_OK

Normal completion

MD_ARGERROR

Invalid argument specification