Starts UARTF data transmission.
Remark 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.
Remark 2. When performing a UARTF transmission, R_UARTFn_Start must be called before this API function is called.
Remark
2. 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]
#include “r_cg_macrodriver.h”
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 |