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#include "project.h"
int host_has_power;
void
adc_tick (void)
{
uint16_t v;
if (adc_eoc (ADC1))
{
v = adc_read_regular (ADC1);
host_has_power = ! !(v > 1000);
}
adc_start_conversion_direct (ADC1);
}
static uint8_t channels[] = { ADC_CHANNEL0 };
#define n_channels (sizeof(channels)/sizeof(channels[0]))
void
adc_init (void)
{
rcc_periph_clock_enable (RCC_ADC1);
//gpio_mode_setup(GPIOA, GPIO_MODE_ANALOG, GPIO_PUPD_DOWN, GPIO0);
gpio_set_mode (GPIOA, GPIO_MODE_INPUT, GPIO_CNF_INPUT_ANALOG, GPIO0);
adc_off (ADC1);
adc_disable_scan_mode (ADC1);
adc_set_single_conversion_mode (ADC1);
adc_disable_external_trigger_regular (ADC1);
adc_set_right_aligned (ADC1);
adc_set_sample_time_on_all_channels (ADC1, ADC_SMPR_SMP_28DOT5CYC);
adc_power_on (ADC1);
adc_reset_calibration (ADC1);
adc_calibration (ADC1);
adc_set_regular_sequence (ADC1, n_channels, channels);
adc_start_conversion_direct (ADC1);
host_has_power = 0;
}
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