diff --git a/include/hwdefs.h b/include/hwdefs.h
index c5f07c3..6874040 100644
--- a/include/hwdefs.h
+++ b/include/hwdefs.h
@@ -44,7 +44,6 @@
 #define REV_CNT_SR         hwRev == HW_REV1 ? TIM_SR_CC3IF : TIM_SR_CC1IF
 #define REV_CNT_DMAEN      hwRev == HW_REV1 ? TIM_DIER_CC3DE : TIM_DIER_CC1DE
 #define REV_CNT_DMACHAN    hwRev == HW_REV1 ? DMA_CHANNEL2 : DMA_CHANNEL6
-#define REV_CNT_DMA_CNDTR  hwRev == HW_REV1 ? DMA1_CNDTR2 : DMA1_CNDTR6
 
 #define NORTH_EXC_PORT     hwRev == HW_BLUEPILL ? GPIOC : GPIOD
 #define NORTH_EXC_PIN      hwRev == HW_BLUEPILL ? GPIO14 : GPIO2
diff --git a/include/inc_encoder.h b/include/inc_encoder.h
index ca83d0b..237ebd6 100644
--- a/include/inc_encoder.h
+++ b/include/inc_encoder.h
@@ -38,7 +38,7 @@ class Encoder
    static uint16_t GetAngleSinCos();
    static uint16_t DecodeAngle(bool invert);
    static int GetPulseTimeFiltered();
-   static void GetMinMaxTime(uint32_t& min, uint32_t& max);
+   static void GetMinMaxTime(int& min, int& max);
 };
 
 #endif // INC_ENCODER_H_INCLUDED
diff --git a/libopencm3 b/libopencm3
index d0ece52..517b509 160000
--- a/libopencm3
+++ b/libopencm3
@@ -1 +1 @@
-Subproject commit d0ece52cd6d302d2d77d42ab45a22296c6a90fcf
+Subproject commit 517b509f3eaf92e3816e103a96e62c9598e1a3e5
diff --git a/src/inc_encoder.cpp b/src/inc_encoder.cpp
index 4cbe1b7..ab1b614 100644
--- a/src/inc_encoder.cpp
+++ b/src/inc_encoder.cpp
@@ -378,7 +378,7 @@ void Encoder::InitTimerSingleChannelMode()
    /* Save timer value on input pulse with smaller filter constant */
    timer_ic_set_filter(REV_CNT_TIMER, REV_CNT_IC, selectedConfig->captureFilter);
    timer_ic_set_input(REV_CNT_TIMER, REV_CNT_IC, TIM_IC_IN_TI1);
-   timer_set_oc_polarity_high(REV_CNT_TIMER, REV_CNT_OC);
+   timer_set_oc_polarity_low(REV_CNT_TIMER, REV_CNT_OC);
    timer_ic_enable(REV_CNT_TIMER, REV_CNT_IC);
 
    timer_enable_irq(REV_CNT_TIMER, REV_CNT_DMAEN);
@@ -444,6 +444,7 @@ void Encoder::InitTimerABZMode()
 
 void Encoder::InitResolverMode()
 {
+   //The first injected channel is always noisy, so we insert one dummy channel
    uint8_t channels[3] = { 0, 6, 7 };
 
    adc_set_injected_sequence(ADC1, sizeof(channels), channels);
@@ -586,11 +587,11 @@ int Encoder::GetPulseTimeFiltered()
 {
    static int lastN = 0;
    static int noMovement = 0;
-   uint16_t n = REV_CNT_DMA_CNDTR;
-   uint16_t measTm = REV_CNT_CCR;
+   int n = dma_get_number_of_data(DMA1, REV_CNT_DMACHAN);
+   int measTm = timer_get_ic_value(REV_CNT_TIMER, REV_CNT_IC);
    int pulses = n <= lastN ? lastN - n : lastN + MAX_REVCNT_VALUES - n;
-   uint32_t max = 0;
-   uint32_t min = 0xFFFF;
+   int max = 0;
+   int min = 0xFFFF;
    lastN = n;
 
    GetMinMaxTime(min, max);
@@ -632,9 +633,9 @@ int Encoder::GetPulseTimeFiltered()
    return pulses;
 }
 
-void Encoder::GetMinMaxTime(uint32_t& min, uint32_t& max)
+void Encoder::GetMinMaxTime(int& min, int& max)
 {
-   for (uint32_t i = 0; i < MAX_REVCNT_VALUES; i++)
+   for (int i = 0; i < MAX_REVCNT_VALUES; i++)
    {
       min = MIN(min, timdata[i]);
       max = MAX(max, timdata[i]);