Review system Timer config

Set TICK_INT_PRIORITY to 0 (Highest priority) by default, it can be redefined.
Time base configuration function (HAL_InitTick ()) is called automatically
at the beginning of the program after reset by HAL_Init() or at any time
when clock is configured, by HAL_RCC_ClockConfig().

The HAL_SYSTICK_Config()function calls the SysTick_Config() function which
is a CMSIS function that:
  Configures the SysTick Reload register with value passed as function parameter.
  Configures the SysTick IRQ priority to the TICK_INT_PRIORITY.
  Resets the SysTick Counter register.
  Configures the SysTick Counter clock source to be Core Clock Source (HCLK).
  Enables the SysTick Interrupt.
  Starts the SysTick Counter.

So, SystemClock_Config() (variant.cpp) does not need to be set explicitly.

Signed-off-by: Frederic.Pillon <frederic.pillon@st.com>

Author: fpistm

system/STM32F0xx/stm32f0xx_hal_conf_default.h

@@ -167,7 +167,7 @@ in voltage and temperature.  */
   */
 #define  VDD_VALUE                    3300U  /*!< Value of VDD in mv */
 #if !defined (TICK_INT_PRIORITY)
-#define  TICK_INT_PRIORITY            ((uint32_t)(1U<<__NVIC_PRIO_BITS) - 1U) /*!< tick interrupt priority (lowest by default)             */
+#define  TICK_INT_PRIORITY            0x00U /*!< tick interrupt priority */
 #endif
 #if !defined (USE_RTOS)
 #define  USE_RTOS                     0U

system/STM32F1xx/stm32f1xx_hal_conf_default.h

@@ -144,7 +144,7 @@ extern "C" {
   */
 #define  VDD_VALUE                    3300U /*!< Value of VDD in mv */
 #if !defined (TICK_INT_PRIORITY)
-#define  TICK_INT_PRIORITY            0x0FU /*!< tick interrupt priority */
+#define  TICK_INT_PRIORITY            0x00U /*!< tick interrupt priority */
 #endif
 #if !defined (USE_RTOS)
 #define  USE_RTOS                     0U

system/STM32F2xx/stm32f2xx_hal_conf_default.h

@@ -150,7 +150,7 @@ in voltage and temperature.*/
   */
 #define  VDD_VALUE                      3300U /*!< Value of VDD in mv */
 #if !defined (TICK_INT_PRIORITY)
-#define  TICK_INT_PRIORITY              0x0FU /*!< tick interrupt priority */
+#define  TICK_INT_PRIORITY              0x00U /*!< tick interrupt priority */
 #endif
 #if !defined (USE_RTOS)
 #define  USE_RTOS                     0U

system/STM32F3xx/stm32f3xx_hal_conf_default.h

@@ -167,7 +167,7 @@ in voltage and temperature.  */
   */
 #define  VDD_VALUE                    (3300U) /*!< Value of VDD in mv */
 #if !defined (TICK_INT_PRIORITY)
-#define  TICK_INT_PRIORITY            ((uint32_t)(1U<<__NVIC_PRIO_BITS) - 1U)   /*!< tick interrupt priority (lowest by default) */
+#define  TICK_INT_PRIORITY            0x00U /*!< tick interrupt priority */
 #endif
 #if !defined (USE_RTOS)
 #define  USE_RTOS                     0U

system/STM32F4xx/stm32f4xx_hal_conf_default.h

@@ -148,7 +148,7 @@ in voltage and temperature. */
   */
 #define  VDD_VALUE                    3300U /*!< Value of VDD in mv */
 #if !defined (TICK_INT_PRIORITY)
-#define  TICK_INT_PRIORITY            0x0FU /*!< tick interrupt priority */
+#define  TICK_INT_PRIORITY            0x00U /*!< tick interrupt priority */
 #endif
 #if !defined (USE_RTOS)
 #define  USE_RTOS                     0U

system/STM32F7xx/stm32f7xx_hal_conf_default.h

@@ -148,7 +148,7 @@ in voltage and temperature.  */
   */
 #define  VDD_VALUE                    3300U /*!< Value of VDD in mv */
 #if !defined (TICK_INT_PRIORITY)
-#define  TICK_INT_PRIORITY            0x0FU /*!< tick interrupt priority */
+#define  TICK_INT_PRIORITY            0x00U /*!< tick interrupt priority */
 #endif
 #if !defined (USE_RTOS)
 #define  USE_RTOS                     0U

system/STM32G0xx/stm32g0xx_hal_conf_default.h

@@ -150,7 +150,7 @@ in voltage and temperature.*/
   */
 #define  VDD_VALUE                    (3300UL) /*!< Value of VDD in mv */
 #if !defined (TICK_INT_PRIORITY)
-#define  TICK_INT_PRIORITY            ((1UL<<__NVIC_PRIO_BITS) - 1UL) /*!< tick interrupt priority */
+#define  TICK_INT_PRIORITY            0x00U /*!< tick interrupt priority */
 #endif
 #if !defined (USE_RTOS)
 #define  USE_RTOS                     0U

system/STM32H7xx/stm32h7xx_hal_conf_default.h

@@ -161,7 +161,7 @@ in voltage and temperature.*/
   */
 #define  VDD_VALUE                    ((uint32_t)3300) /*!< Value of VDD in mv */
 #if !defined (TICK_INT_PRIORITY)
-#define  TICK_INT_PRIORITY            ((uint32_t)0x0F) /*!< tick interrupt priority */
+#define  TICK_INT_PRIORITY            ((uint32_t)0x00) /*!< tick interrupt priority */
 #endif
 #if !defined (USE_RTOS)
 #define  USE_RTOS                     0

system/STM32L0xx/stm32l0xx_hal_conf_default.h

@@ -141,7 +141,7 @@ in voltage and temperature.*/
   */
 #define  VDD_VALUE                    ((uint32_t)3300U) /*!< Value of VDD in mv */
 #if !defined (TICK_INT_PRIORITY)
-#define  TICK_INT_PRIORITY            (((uint32_t)1U<<__NVIC_PRIO_BITS) - 1U)    /*!< tick interrupt priority */
+#define  TICK_INT_PRIORITY            0x00U /*!< tick interrupt priority */
 #endif
 #if !defined (USE_RTOS)
 #define  USE_RTOS                     0U

system/STM32L1xx/stm32l1xx_hal_conf_default.h

@@ -131,7 +131,7 @@ in voltage and temperature.*/
   */
 #define  VDD_VALUE                    (3300U) /*!< Value of VDD in mv */
 #if !defined (TICK_INT_PRIORITY)
-#define  TICK_INT_PRIORITY            (0x000FU)    /*!< tick interrupt priority */
+#define  TICK_INT_PRIORITY            (0x0000U)    /*!< tick interrupt priority */
 #endif
 #if !defined (USE_RTOS)
 #define  USE_RTOS                     0U