Transmit 4Bytes data by Master.
[GUI setting example]
|
Serial |
Used | |||
|
IICA0 |
Used | |||
|
Transfer mode |
Single master | |||
|
Master0 |
||||
|
Clock mode setting |
fCLK/2 | |||
|
Local address setting |
16 | |||
|
Operation mode setting |
Normal | |||
|
Transfer clock (fSCL) |
100000(bps)(Actual value：99378.882) | |||
|
Communication endinterrupt priority (INTIICA0) |
High | |||
|
Master transmission end (Callback function setting) |
Used | |||
|
Master reception end (Callback function setting) |
Unused | |||
|
Master error (Callback function setting) |
Unused | |||
|
Generates stop condition in master transmission/reception end callback function (Callback function enhanced feature setting) |
Used | |||
[API setting example]
r_main.c
/* Start user code for pragma. Do not edit comment generated here */
#define SLAVE_ADDR (0xA0) /* slave address */
/* End user code. Do not edit comment generated here */
/* Start user code for global. Do not edit comment generated here */
volatile uint8_t g_iica0_tx_buf[4] = { 'A', 'B', 'C', 'D' };
/* End user code. Do not edit comment generated here */
void main(void)
{
R_MAIN_UserInit();
/* Start user code. Do not edit comment generated here */
/* Start to send data as master mode */
R_IICA0_Master_Send(SLAVE_ADDR, (uint8_t *)g_iica0_tx_buf, 4U, 128U);
while (1U)
{
;
}
/* End user code. Do not edit comment generated here */
}
r_cg_serial_user.c
static void r_iica0_callback_master_sendend(void)
{
SPT0 = 1U;
/* Start user code. Do not edit comment generated here */
/* Stop IICA0 module operation */
R_IICA0_Stop();
/* End user code. Do not edit comment generated here */
}