From da66469faa2019df173b1b026d832228688a74d0 Mon Sep 17 00:00:00 2001
From: Ash-4 <mcc9345@hotmail.com>
Date: Wed, 29 Jan 2025 00:34:45 -0600
Subject: [PATCH] DC mode timer sync STM32

---
 DCCTimerSTM32.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/DCCTimerSTM32.cpp b/DCCTimerSTM32.cpp
index 8092160..a7976e7 100644
--- a/DCCTimerSTM32.cpp
+++ b/DCCTimerSTM32.cpp
@@ -37,11 +37,15 @@
 #include "DIAG.h"
 #include <wiring_private.h>
 
+// DC mode timers enable the PWM signal on select pins.
+// Code added to sync timers which have the same frequency.
 // Function prototypes
 void refreshDCmodeTimers();
 void resetCounterDCmodeTimers();
 
 HardwareTimer *Timer1 = new HardwareTimer(TIM1);
+HardwareTimer *Timer2 = new HardwareTimer(TIM2);
+HardwareTimer *Timer3 = new HardwareTimer(TIM3);
 HardwareTimer *Timer4 = new HardwareTimer(TIM4);
 HardwareTimer *Timer9 = new HardwareTimer(TIM9);
 #if defined(TIM13)
@@ -685,6 +689,8 @@ void ADCee::begin() {
 //    not exact sync, but timers with the same frequency should be in sync
 void refreshDCmodeTimers() {
   Timer1->refresh();
+  Timer2->refresh();
+  Timer3->refresh();
   Timer4->refresh();
   Timer9->refresh();
   #if defined(TIM13)
@@ -696,6 +702,8 @@ void refreshDCmodeTimers() {
 void resetCounterDCmodeTimers() {
     // Reset the counter for all DC mode timers
     TIM1->CNT = 0;
+    TIM2->CNT = 0;
+    TIM3->CNT = 0;
     TIM4->CNT = 0;
     TIM9->CNT = 0;
     #if defined(TIM13)