Starts UARTMG data transmission.
Remarks 1. This API function repeats the byte-level UART transmission from the buffer specified in argument tx_buf the number of times specified in argument tx_num.
Remarks 2. When performing a UART transmission, R_UARTMGn_Start must be called before this API function is called.
[Syntax]
#include “r_cg_macrodriver.h”
MD_STATUS R_UARTMGn_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 |