merged irq-refactor branch, which fixes some small but long-standing issues:

- fixed occasional short/aborted frames in aux LED sleep animation
- fixed rare case of bogus voltage and/or temperature values
- fixed issue where nice_delay_ms() didn't work in setup()
- fixed theoretical possibility of extra-noisy buttons causing a hang
- fixed reboot loop which happened after any crashes
- fixed issue where button press in sleep mode could occasionally crash
  (but the issue may have been created by this branch before being fixed by it)
- reduced occasional missed button events while asleep
  (still seems to happen but not nearly as much)

Also does some other things:
- cleans up the ADC code significantly
- cleans up the WDT code
- adds a voltage stabilizer/lowpass option (enabled on t1634 builds)
- greatly reduces time spent per interrupt,
  which might make a future PWM-DSM technique possible
- moves most interrupt-handling logic to a non-critical code path,
  deferring that code until timing doesn't matter as much
- sped up button state measurements
- very slightly reduces power used in sleep mode

1 files changed, 2 insertions, 0 deletions

diff --git a/spaghetti-monster/fsm-main.h b/spaghetti-monster/fsm-main.h
index cc469d7..55ae2ff 100644
--- a/spaghetti-monster/fsm-main.h
+++ b/spaghetti-monster/fsm-main.h
@@ -21,5 +21,7 @@
 #define FSM_MAIN_H
 
 int main();
+// needs to run frequently to execute the logic for WDT and ADC and stuff
+void handle_deferred_interrupts();
 
 #endif