Usage example (Slave, Reception)
Receive 4Bytes data by Slave.
[GUI setting example]
| Serial | Used | |||
| SAU0 | Unused | |||
| SAU1 | Unused | |||
| IICA0 | Used | |||
| Transfer mode | Slave | |||
| Slave0 | ||||
| Clock mode setting | fCLK/2 | |||
| Local address setting | 0xA0 | |||
| Operation mode setting | Normal | |||
| Wakeup function setting | Off | |||
| Communication endinterrupt priority (INTIICA0) | Low | |||
| Slave transmission end (Callback function setting) | Unused | |||
| Slave reception end (Callback function setting) | Used | |||
| Slave error (Callback function setting) | Unused | |||
[API setting example]
r_main.c
/* Start user code for global. Do not edit comment generated here */
volatile uint8_t g_iica0_rx_buf[4];
/* End user code. Do not edit comment generated here */
void main(void)
{
R_MAIN_UserInit();
/* Start user code. Do not edit comment generated here */
/* Receive data as slave mode */
R_IICA0_Slave_Receive((uint8_t *)g_iica0_rx_buf, 4U);
while (1U)
{
;
}
/* End user code. Do not edit comment generated here */
}
r_cg_serial_user.c
static void r_iica0_callback_slave_receiveend(void)
{
/* 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 */
}