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powerctl: Revert t_adc to being a tick timer.

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Rather than counting seconds, count ticks, so we can set sub-second ADC
samples.
This commit is contained in:
Stuart Longland 2017-03-19 09:41:41 +10:00
parent cdb3bb6349
commit 5fe8ce3d74
Signed by: stuartl
GPG Key ID: F954BBBB7948D546
1 changed files with 6 additions and 4 deletions
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10
powerctl.c
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@ -45,6 +45,7 @@
/* --- Timeouts --- */
#define T_LED_TICKS TIMER_TICKS(T_LED_MS)
#define T_ADC_TICKS TIMER_TICKS(T_ADC_MS)
#define STATE_DIS_CHECK (0) /*!< Check voltage in discharge state */
#define STATE_DIS_WAIT (1) /*!< Wait in discharge state */
@ -98,7 +99,7 @@ static volatile uint16_t t_second = 0;
/*!
* How long before we next take a reading?
*/
static volatile uint8_t t_adc = 0;
static volatile uint16_t t_adc = 0;
/*!
* How long before we change LED states?
@ -352,12 +353,13 @@ int main(void) {
/* One second passed, tick down the 1-second timers. */
if (!t_second) {
t_second = TIMER_FREQ;
if (t_adc)
t_adc--;
if (t_charger)
t_charger--;
}
if (t_adc)
t_adc--;
if (!t_led) {
if (v_bn_adc <= V_CL_ADC) {
/* Battery is critically low */
@ -395,7 +397,7 @@ int main(void) {
}
if (!t_adc) {
t_adc = T_ADC_S;
t_adc = T_ADC_TICKS;
ADCSRA |= (1 << ADEN) | (1 << ADSC);
while(ADCSRA & (1 << ADEN));