Usage example
Get the A/D conversion result of 2 pins alternately.
[GUI setting example]
|
A/D convertor |
Used | |||
|
ADC |
Used | |||
|
A/D convertor operation setting |
Used | |||
|
Comparator operation setting |
Operation | |||
|
Resolution |
8 bits | |||
|
VREF(+) setting |
VDD | |||
|
VREF(-) setting |
VSS | |||
|
Trigger setting mode |
Software trigger mode | |||
|
Operation mode setting |
One-shot select mode | |||
|
ANI0 - ANI23 analog input selection |
ANI0 - ANI1 | |||
|
A/D channel selection |
ANI0 | |||
|
Conversion time mode |
Normal 1 | |||
|
Conversion time |
34 (1088/fCLK)(μs) | |||
|
Conversion result upper/lower bound value setting |
Generates an interrupt request (INTAD) when ADLL≦ADCRH≦ADUL | |||
|
Upper bound (ADUL) value |
255 | |||
|
Lower bound (ADLL) value |
0 | |||
|
Use A/D interrupt (INTAD) |
Used | |||
|
Priority |
Low | |||
[API setting example]
r_main.c
void main(void)
{
R_MAIN_UserInit();
/* Start user code. Do not edit comment generated here */
/* Start the AD converter */
R_ADC_Start();
while (1U)
{
;
}
/* End user code. Do not edit comment generated here */
}
r_cg_adc_user.c
/* Start user code for global. Do not edit comment generated here */
volatile uint8_t g_adc_ch000_value;
volatile uint8_t g_adc_ch001_value;
/* End user code. Do not edit comment generated here */
static void __near r_adc_interrupt(void)
{
/* Start user code. Do not edit comment generated here */
/* Stop the AD converter */
R_ADC_Stop();
if(ADS == (uint8_t)ADCHANNEL0)
{
/* Return the higher 8 bits conversion result */
R_ADC_Get_Result_8bit((uint8_t *)&g_adc_ch000_value);
/* Start the AD converter */
R_ADC_Set_ADChannel(ADCHANNEL1);
R_ADC_Start();
}
else
{
/* Return the higher 8 bits conversion result */
R_ADC_Get_Result_8bit((uint8_t *)&g_adc_ch001_value);
}
/* End user code. Do not edit comment generated here */
}