Freeze master timer on stop/breakpoint

Author: betzw

targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F401xE/device/hal_tick.h

@@ -46,6 +46,7 @@
 #define TIM_MST      TIM5
 #define TIM_MST_IRQ  TIM5_IRQn
 #define TIM_MST_RCC  __HAL_RCC_TIM5_CLK_ENABLE()
+#define TIM_MST_DBGMCU_FREEZE  __HAL_DBGMCU_FREEZE_TIM5()
 
 #define TIM_MST_RESET_ON   __HAL_RCC_TIM5_FORCE_RESET()
 #define TIM_MST_RESET_OFF  __HAL_RCC_TIM5_RELEASE_RESET()

targets/TARGET_STM/hal_tick_16b.c

@@ -148,6 +148,13 @@ HAL_StatusTypeDef HAL_InitTick(uint32_t TickPriority)
     // Enable timer
     HAL_TIM_Base_Start(&TimMasterHandle);
 
+#ifndef NDEBUG
+#ifdef TIM_MST_DBGMCU_FREEZE
+    // Freeze timer on stop/breakpoint
+    TIM_MST_DBGMCU_FREEZE;
+#endif
+#endif
+
 #if DEBUG_TICK > 0
     __HAL_RCC_GPIOB_CLK_ENABLE();
     GPIO_InitTypeDef GPIO_InitStruct;

targets/TARGET_STM/hal_tick_32b.c

@@ -118,6 +118,13 @@ HAL_StatusTypeDef HAL_InitTick(uint32_t TickPriority)
     __HAL_TIM_SET_COMPARE(&TimMasterHandle, TIM_CHANNEL_2, PreviousVal + HAL_TICK_DELAY);
     __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_CC2);
 
+#ifndef NDEBUG
+#ifdef TIM_MST_DBGMCU_FREEZE
+    // Freeze timer on stop/breakpoint
+    TIM_MST_DBGMCU_FREEZE;
+#endif
+#endif
+
 #if DEBUG_TICK > 0
     __HAL_RCC_GPIOB_CLK_ENABLE();
     GPIO_InitTypeDef GPIO_InitStruct;