From 06e7ad5c5333cc084e0ee08e71086484d0d06c30 Mon Sep 17 00:00:00 2001
From: Harald Barth <haba@kth.se>
Date: Wed, 25 May 2022 09:28:28 +0200
Subject: [PATCH] prevent usage of pins for DC than can not do PWM

---
 GITHUB_SHA.h     | 2 +-
 MotorDriver.h    | 4 ++--
 TrackManager.cpp | 4 ++--
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/GITHUB_SHA.h b/GITHUB_SHA.h
index fd9c8a0..4e73c0f 100644
--- a/GITHUB_SHA.h
+++ b/GITHUB_SHA.h
@@ -1 +1 @@
-#define GITHUB_SHA "TM-PORTX-20220524"
+#define GITHUB_SHA "TM-PORTX-20220525"
diff --git a/MotorDriver.h b/MotorDriver.h
index a7fe96c..4c7d6ff 100644
--- a/MotorDriver.h
+++ b/MotorDriver.h
@@ -111,8 +111,8 @@ class MotorDriver {
     virtual int getCurrentRawInInterrupt();
     virtual unsigned int raw2mA( int raw);
     virtual int mA2raw( unsigned int mA);
-    inline bool canBrake() {
-      return brakePin!=UNUSED_PIN;
+    inline bool brakeCanPWM() {
+      return ((brakePin!=UNUSED_PIN) && (digitalPinToTimer(brakePin)));
     }
     inline int getRawCurrentTripValue() {
 	    return rawCurrentTripValue;
diff --git a/TrackManager.cpp b/TrackManager.cpp
index b1e76f8..472b263 100644
--- a/TrackManager.cpp
+++ b/TrackManager.cpp
@@ -139,8 +139,8 @@ bool TrackManager::setTrackMode(byte trackToSet, TRACK_MODE mode, int16_t dcAddr
     //DIAG(F("Track=%c"),trackToSet+'A');
     // DC tracks require a motorDriver that can set brake!
     if ((mode==TRACK_MODE_DC || mode==TRACK_MODE_DCX)
-         && !track[trackToSet]->canBrake()) {
-             DIAG(F("No brake:no DC"));
+         && !track[trackToSet]->brakeCanPWM()) {
+             DIAG(F("Brake pin can't PWM: No DC"));
              return false; 
          }