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RX62N Group, RX621 Group 4. Library Reference

4) R_SCI_Send

Synopsis

Transmit data on a SCI channel.

Prototype

bool R_SCI_Send(

uint8_t data1,

// Channel selection

uint16_t data2,

// Channel configuration (and Target Station ID)

uint8_t * data3,

// Data start address

uint16_t data4,

// Data count

void * func

// Callback function

);

Description

Transmit data on the specified serial channel.

[data1]

Select channel SCIn (where n = 0 to 6, but not 4).

[data2]

Control options.

The default options are shown in bold. Specify PDL_NO_DATA to use the defaults.

•

DMAC / DTC trigger control.

PDL_SCI_DMAC_DTC_TRIGGER_DISABLE or

PDL_SCI_DMAC_TRIGGER_ENABLE or

PDL_SCI_DTC_TRIGGER_ENABLE

Disable or enable activation of the DMAC

or DTC when a data byte is transmitted.

•

ID transmission control (valid only in Multi-processor mode).

PDL_SCI_MP_ID_CYCLE

Transmit the upper byte as the ID byte.

The valid ID range is 0 to 255.

[data3]

The start address of the data to be sent.

Specify PDL_NO_PTR for the ID cycle in Multi-processor mode.

If the DMAC or DTC shall be used to transfer the data, specify PDL_NO_PTR.

[data4]

For sending binary data, set this to the number of bytes to be sent. The valid range is 1 to 65535.

Set this to 0 for transmission of a null-terminated character string.

For the ID cycle in Multi-processor mode, specify 0.

If the DMAC or DTC shall be used to transfer the data, specify PDL_NO_DATA.

[func]

Specify PDL_NO_FUNC or a callback function name, depending on the required transfer method.

Use R_SCI_Control to terminate this operation early.

R_SCI_GetStatus can be used to find out how many characters have been transmitted.

Transfer method

Parameter

Polling

PDL_NO_FUNC. This function will continue until the required number of

bytes has been sent.

Interrupts

The function to be called when the last byte has been sent.

DMAC

Either the function to be called when each byte is sent, or PDL_NO_FUNC if

the callback function specified in R_DMAC_Create will be used.

DTC

The function to be called at the interval specified in R_DTC_Create.

Return value

True if all parameters are valid and the operation completed without errors;

False if a parameter was out of range or if the channel was already transmitting or if an error

occurred during transmission.