From 30b13cc13baba55ac1610ad471ca737a6c817683 Mon Sep 17 00:00:00 2001
From: Selene ToyKeeper
Date: Wed, 24 Jan 2018 18:27:44 -0700
Subject: Work around issues related to ADC interrupt auto-triggering itself.
 (was firing off 1000 times faster than desired, causing several issues) (now
 only executes when explicitly requested by the WDT)

---
 spaghetti-monster/fsm-wdt.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'spaghetti-monster/fsm-wdt.c')

diff --git a/spaghetti-monster/fsm-wdt.c b/spaghetti-monster/fsm-wdt.c
index 777bef0..ff96ffb 100644
--- a/spaghetti-monster/fsm-wdt.c
+++ b/spaghetti-monster/fsm-wdt.c
@@ -107,9 +107,9 @@ ISR(WDT_vect) {
     // start a new ADC measurement every 4 ticks
     static uint8_t adc_trigger = 0;
     adc_trigger ++;
-    if (adc_trigger > 3) {
-        adc_trigger = 0;
+    if (0 == (adc_trigger & 3)) {
         ADCSRA |= (1 << ADSC) | (1 << ADIE);
+        adcint_enable = 1;
     }
     #endif
 }
-- 
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