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Merge pull request #9951 from leandrolanzieri/pr/sensebox_adc

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boards/sensebox_samd21: Add ADC configuration
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Peter Kietzmann 2018-09-20 18:27:21 +02:00 committed by GitHub
commit b0ff74bac2
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2 changed files with 33 additions and 0 deletions
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1
boards/sensebox_samd21/Makefile.features
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@ -1,4 +1,5 @@
# Put defined MCU peripherals here (in alphabetical order)
FEATURES_PROVIDED += periph_adc
FEATURES_PROVIDED += periph_gpio periph_gpio_irq
FEATURES_PROVIDED += periph_i2c
FEATURES_PROVIDED += periph_rtc

32
boards/sensebox_samd21/include/periph_conf.h
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@ -186,6 +186,38 @@ static const i2c_conf_t i2c_config[] = {
/** @} */
/**
* @name ADC configuration
* @{
*/
#define ADC_0_EN 1
/* ADC 0 device configuration */
#define ADC_0_DEV ADC
#define ADC_0_IRQ ADC_IRQn
/* ADC 0 Default values */
#define ADC_0_CLK_SOURCE 0 /* GCLK_GENERATOR_0 */
#define ADC_0_PRESCALER ADC_CTRLB_PRESCALER_DIV512
#define ADC_0_NEG_INPUT ADC_INPUTCTRL_MUXNEG_GND
#define ADC_0_GAIN_FACTOR_DEFAULT ADC_INPUTCTRL_GAIN_1X
#define ADC_0_REF_DEFAULT ADC_REFCTRL_REFSEL_INT1V
/* Digital pins (1 to 6) on the board can be configured as analog inputs */
static const adc_conf_chan_t adc_channels[] = {
/* port, pin, muxpos */
{ GPIO_PIN(PA, 4), ADC_INPUTCTRL_MUXPOS_PIN4 }, /* Digital 1 */
{ GPIO_PIN(PA, 5), ADC_INPUTCTRL_MUXPOS_PIN5 }, /* Digital 2 */
{ GPIO_PIN(PA, 6), ADC_INPUTCTRL_MUXPOS_PIN6 }, /* Digital 3 */
{ GPIO_PIN(PA, 7), ADC_INPUTCTRL_MUXPOS_PIN7 }, /* Digital 4 */
{ GPIO_PIN(PA, 3), ADC_INPUTCTRL_MUXPOS_PIN1 }, /* Digital 5 */
{ GPIO_PIN(PA, 2), ADC_INPUTCTRL_MUXPOS_PIN0 }, /* Digital 6 */
};
#define ADC_0_CHANNELS (6U)
#define ADC_NUMOF ADC_0_CHANNELS
/** @} */
#ifdef __cplusplus
}
#endif