From 73b67cccbe050be9e7e7ea671ffbbdd1d6f14f61 Mon Sep 17 00:00:00 2001
From: Selene ToyKeeper
Date: Thu, 12 Aug 2021 05:32:51 -0600
Subject: got PFM / dynamic PWM actually working on Noctigon KR4 (and also
 added "jump start moon" to it) (and generally finished adding dynamic PWM
 support to FSM)

---
 spaghetti-monster/fsm-ramping.h | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'spaghetti-monster/fsm-ramping.h')

diff --git a/spaghetti-monster/fsm-ramping.h b/spaghetti-monster/fsm-ramping.h
index 8fd89c7..d1ef6bc 100644
--- a/spaghetti-monster/fsm-ramping.h
+++ b/spaghetti-monster/fsm-ramping.h
@@ -53,7 +53,9 @@ void gradual_tick();
 #define PWM_GET(x,y) pgm_read_byte(x+y)
 #else
 #define PWM_DATATYPE uint16_t
+#ifndef PWM_TOP
 #define PWM_TOP 1023  // 10 bits by default
+#endif
 // pointer plus 2*y bytes
 //#define PWM_GET(x,y) pgm_read_word(x+(2*y))
 // nope, the compiler was already doing the math correctly
@@ -74,6 +76,12 @@ PROGMEM const PWM_DATATYPE pwm3_levels[] = { PWM3_LEVELS };
 PROGMEM const PWM_DATATYPE pwm4_levels[] = { PWM4_LEVELS };
 #endif
 
+// pulse frequency modulation, a.k.a. dynamic PWM
+// (different ceiling / frequency at each ramp level)
+#ifdef USE_DYN_PWM
+PROGMEM const PWM_DATATYPE pwm_tops[] = { PWM_TOPS };
+#endif
+
 // default / example ramps
 #ifndef PWM1_LEVELS
 #if PWM_CHANNELS == 1
-- 
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