/**
* \brief Read the period of the frequency signal capture
*
* \return A value representing the power with which the plate element is
* actuated.
*/
static uint16_t oven_plant_read_signal_period(void)
{
uint16_t val = 0;
if (tc_is_cc_interrupt(&OVEN_FREQ_CAPT_TC, TC_CCA)) {
val = tc_read_cc_buffer(&OVEN_FREQ_CAPT_TC, TC_CCA);
tc_clear_cc_interrupt(&OVEN_FREQ_CAPT_TC, TC_CCA);
}
return val >> 1;
}
uint16_t qdec_get_frequency(qdec_config_t *config)
{
uint16_t capture = 0;
/* While the CC flag is setted, read the CC value.
* This allows to read all CC buffers on XMEGA E and read the last value
*/
while (tc_is_cc_interrupt(config->freq_opt.timer, TC_CCA)) {
capture = tc_read_cc(config->freq_opt.timer, TC_CCA);
}
if (capture == 0) {
/* Out of range and certainly due to a rebounce not filtered */
return config->freq_opt.last_freq;
}
config->freq_opt.last_freq = config->freq_opt.coef / capture;
return config->freq_opt.last_freq;
}
