From 399030d8ae7a88e3334ab6ba49d4e4e926999bbb Mon Sep 17 00:00:00 2001
From: Harald Barth <haba@kth.se>
Date: Tue, 25 Jul 2023 12:51:23 +0200
Subject: [PATCH] make variable frequency a compile option

---
 MotorDriver.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/MotorDriver.cpp b/MotorDriver.cpp
index 444d502..5b51778 100644
--- a/MotorDriver.cpp
+++ b/MotorDriver.cpp
@@ -278,6 +278,7 @@ void MotorDriver::startCurrentFromHW() {
 #endif //ANALOG_READ_INTERRUPT
 
 #if defined(ARDUINO_ARCH_ESP32)
+#ifdef VARIABLE_TONES
 uint16_t taurustones[28] = { 165, 175, 196, 220,
 			     247, 262, 294, 330,
 			     349, 392, 440, 494,
@@ -286,6 +287,7 @@ uint16_t taurustones[28] = { 165, 175, 196, 220,
 			     330, 284, 262, 247,
 			     220, 196, 175, 165 };
 #endif
+#endif
 void MotorDriver::setDCSignal(byte speedcode) {
   if (brakePin == UNUSED_PIN)
     return;
@@ -304,11 +306,13 @@ void MotorDriver::setDCSignal(byte speedcode) {
 #if defined(ARDUINO_ARCH_ESP32)
   {
     int f = 131;
+#ifdef VARIABLE_TONES
     if (tSpeed > 2) {
       if (tSpeed <= 58) {
 	f = taurustones[ (tSpeed-2)/2 ] ;
       }
     }
+#endif
     DCCTimer::DCCEXanalogWriteFrequency(brakePin, f); // set DC PWM frequency to 100Hz XXX May move to setup
   }
 #endif