main.c: on-demand sleep modes

diff --git a/firmware/main.c b/firmware/main.c
index 0e33957..a83884b 100644 (file)
--- a/firmware/main.c
+++ b/firmware/main.c
@@ -71,7 +71,20 @@ int main(void)
        sei();
 #if 1
        while (1) {
-               sleep_mode();
+               cli();
+               if (TIMER1_IS_ON()) {
+                       set_sleep_mode(SLEEP_MODE_IDLE);
+               } else if (adc_is_on) {
+                       set_sleep_mode(SLEEP_MODE_ADC);
+               } else {
+                       set_sleep_mode(SLEEP_MODE_PWR_DOWN);
+               }
+
+               sleep_enable();
+               // keep BOD active, no sleep_bod_disable();
+               sei();
+               sleep_cpu();
+               sleep_disable();
        }
 #endif