Renesas RX110

RX Family ADC Module Using Firmware Integration Technology
R01AN1666EJ0220 Rev. 2.20 Page 61 of 74
Dec 01, 2016
/* Have channel 1 and 2 as Group A, have 3 and 4 as Group B,
have 5 and 6 as Group C
Perform addition/average on all channels except 9
*/
ch_cfg.scan_mask = ADC_MASK_CH1 | ADC_MASK_CH2;
ch_cfg.scan_mask_groupb = ADC_MASK_CH3 | ADC_MASK_CH4;
ch_cfg.scan_mask_groupc = ADC_MASK_CH5 | ADC_MASK_CH6;
ch_cfg.priority_groupa = ADC_GRPA_PRIORITY_OFF;
ch_cfg.add_mask = 0;
ch_cfg.diag_method = ADC_DIAG_OFF;
ch_cfg.anex_enable = false;
ch_cfg.sample_hold_mask = 0;
R_ADC_Control(0, ADC_CMD_CONFIGURE_SCAN, &ch_cfg);
/* After open, wait 1 us or longer before A/D conversion starts */
/* ENABLE TRIGGERS */
R_ADC_Control(0, ADC_CMD_ENABLE_TRIG, NULL);
/* INTERRUPT OCCURS UPON SCAN COMPLETION */
/* The callback is called twice from interrupt level- once after each
* group scan completes. The order depends upon the trigger order.
*/
void MyCallback(void *p_args)
{
adc_cb_args_t *args;
uint16_t data1,data2,data3,data4,data5,data6;
args = (adc_cb_args_t *)p_args;
/* READ RESULTS */
if (args->event == ADC_EVT_SCAN_COMPLETE)
{
/* From S12ADIO interrupt, Group A scan complete, read registers */
R_ADC_Read(0, ADC_REG_CH1, &data1);
R_ADC_Read(0, ADC_REG_CH2, &data2);
}
else if (args->event == ADC_EVT_SCAN_COMPLETE_GROUPB)
{
/* From GBADI interrupt, Group B scan complete, read registers */
R_ADC_Read(0, ADC_REG_CH3, &data3);
R_ADC_Read(0, ADC_REG_CH4, &data4);
}
else if (args->event == ADC_EVT_SCAN_COMPLETE_GROUPC)
{
/* From GCADI interrupt, Group C scan complete, read registers */
R_ADC_Read(0, ADC_REG_CH5, &data5);
R_ADC_Read(0, ADC_REG_CH6, &data6);
}
/* process data, or set flag for application level to do so */
}