Usage example
Supply the generated reference voltage to A/D convertor.
[GUI setting example]
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Voltage reference |
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VR |
Used | |||
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Voltage reference operation setting |
Used | |||
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1/2 AVDD voltage output operation setting |
Enable | |||
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VREFOUT pin output level setting |
1.8V | |||
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12-Bit A/Dconvertor |
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ADC |
Used | |||
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A/D convertor operation setting |
Used | |||
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A/D conversion clock setting |
PCLK | |||
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A/D conversion mode setting |
High-speed conversion | |||
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VREF（+）setting |
AVREFP/VREFOUT | |||
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VREF（-）setting |
AVSS | |||
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Operation mode setting |
Single scan mode | |||
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Conversion start trigger setting |
Software trigger |
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Analog input channel setting |
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ANI00 |
Used |
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ANI00 addition/Average function |
Unused |
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Data registers setting |
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ADconversion value addition count |
1-time conversion | |||
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Data placement |
Right-alignment | |||
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Automatic clearing |
Disable automatic clearing | |||
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ANI00 input sampling time |
3.667(μs) (Actual value：3.667) | |||
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A/D converted value count setting |
Addition mode | |||
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Interrupt setting |
Enable AD conversion end interrupt（INTAD） | |||
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Priority |
Level 3 (Low Priority) | |||
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Data registers setting |
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[API setting example]
r_cg_main.c
void main(void)
{
R_MAIN_UserInit();
/* Start user code. Do not edit comment generated here */
/* Start VR module operation */
R_VR_Start();
/* Start AD converter */
R_12ADC_Start();
while (1U)
{
;
}
/* End user code. Do not edit comment generated here */
}
r_cg_12adc_user.c
/* Start user code for include. Do not edit comment generated here */
#include "r_cg_vr.h"
/* End user code. Do not edit comment generated here */
/* Start user code for global. Do not edit comment generated here */
volatile uint16_t g_12adc_ch000_value;
/* End user code. Do not edit comment generated here */
static void __near r_12adc_interrupt(void)
{
/* Start user code. Do not edit comment generated here */
/* Stop VR module operation */
R_VR_Stop();
/* Stop AD converter */
R_12ADC_Stop();
/* Get AD converter result */
R_12ADC_Get_ValueResult(ADCHANNEL0, (uint16_t *)&g_12adc_ch000_value);
/* End user code. Do not edit comment generated here */
}