/*
* Application entry point.
*/
int main(void) {
/*
* System initializations.
* - HAL initialization, this also initializes the configured device drivers
* and performs the board-specific initializations.
* - Kernel initialization, the main() function becomes a thread and the
* RTOS is active.
*/
halInit();
chSysInit();
/*
* Setting up analog inputs used by the demo.
*/
palSetGroupMode(GPIOC, PAL_PORT_BIT(0) | PAL_PORT_BIT(1),
0, PAL_MODE_INPUT_ANALOG);
/*
* Creates the blinker thread.
*/
chThdCreateStatic(waThread1, sizeof(waThread1), NORMALPRIO, Thread1, NULL);
/*
* Activates the ADC1 driver and the temperature sensor.
*/
adcStart(&ADCD1, NULL);
adcSTM32SetCCR(ADC_CCR_VBATEN | ADC_CCR_TSEN | ADC_CCR_VREFEN);
/*
* Linear conversion.
*/
adcConvert(&ADCD1, &adcgrpcfg1, samples1, ADC_GRP1_BUF_DEPTH);
chThdSleepMilliseconds(1000);
/*
* Starts an ADC continuous conversion.
*/
adcStartConversion(&ADCD1, &adcgrpcfg2, samples2, ADC_GRP2_BUF_DEPTH);
/*
* Normal main() thread activity, in this demo it does nothing.
*/
while (TRUE) {
if (palReadPad(GPIOA, GPIOA_BUTTON)) {
adcStopConversion(&ADCD1);
adcSTM32SetCCR(0);
}
chThdSleepMilliseconds(500);
}
}
adc_values_t readADC(void) {
adc_values_t values;
adcStart(&ADCD1, &adccfg);
adcSTM32SetCCR(ADC_CCR_TSEN | ADC_CCR_VREFEN);
adcStartConversion(&ADCD1, &adcgrpcfg, samples, 1);
chThdSleepMilliseconds(500);
adcStop(&ADCD1);
values.vdda_voltage = get_vdda_voltage(samples[4]);
values.supply_voltage = ((float)samples[0] / ADC_RES * values.vdda_voltage) / VSUPPMON_DIVIDER;
values.batt_voltage = ((float)samples[2] / ADC_RES * values.vdda_voltage) / VBATTMON_DIVIDER;
values.charge_current = ((float)samples[1] / ADC_RES * values.vdda_voltage) / ICHARGE_DIVIDER;
values.internal_temp = get_temp(samples[3]);
return values;
}
