Diff: targets/cmsis/TARGET_STM/TARGET_DISCO_F100RB/misc.c

Revision:

126:549ba18ddd81

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/cmsis/TARGET_STM/TARGET_DISCO_F100RB/misc.c	Wed Mar 19 16:00:09 2014 +0000
@@ -0,0 +1,240 @@
+/**
+  ******************************************************************************
+  * @file    misc.c
+  * @author  MCD Application Team
+  * @version V3.6.1
+  * @date    05-March-2012
+  * @brief   This file provides all the miscellaneous firmware functions (add-on
+  *          to CMSIS functions).
+ *******************************************************************************
+ * Copyright (c) 2014, STMicroelectronics
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "misc.h"
+
+/** @addtogroup STM32F10x_StdPeriph_Driver
+  * @{
+  */
+
+/** @defgroup MISC 
+  * @brief MISC driver modules
+  * @{
+  */
+
+/** @defgroup MISC_Private_TypesDefinitions
+  * @{
+  */
+
+/**
+  * @}
+  */ 
+
+/** @defgroup MISC_Private_Defines
+  * @{
+  */
+
+#define AIRCR_VECTKEY_MASK    ((uint32_t)0x05FA0000)
+/**
+  * @}
+  */
+
+/** @defgroup MISC_Private_Macros
+  * @{
+  */
+
+/**
+  * @}
+  */
+
+/** @defgroup MISC_Private_Variables
+  * @{
+  */
+
+/**
+  * @}
+  */
+
+/** @defgroup MISC_Private_FunctionPrototypes
+  * @{
+  */
+
+/**
+  * @}
+  */
+
+/** @defgroup MISC_Private_Functions
+  * @{
+  */
+
+/**
+  * @brief  Configures the priority grouping: pre-emption priority and subpriority.
+  * @param  NVIC_PriorityGroup: specifies the priority grouping bits length. 
+  *   This parameter can be one of the following values:
+  *     @arg NVIC_PriorityGroup_0: 0 bits for pre-emption priority
+  *                                4 bits for subpriority
+  *     @arg NVIC_PriorityGroup_1: 1 bits for pre-emption priority
+  *                                3 bits for subpriority
+  *     @arg NVIC_PriorityGroup_2: 2 bits for pre-emption priority
+  *                                2 bits for subpriority
+  *     @arg NVIC_PriorityGroup_3: 3 bits for pre-emption priority
+  *                                1 bits for subpriority
+  *     @arg NVIC_PriorityGroup_4: 4 bits for pre-emption priority
+  *                                0 bits for subpriority
+  * @retval None
+  */
+void NVIC_PriorityGroupConfig(uint32_t NVIC_PriorityGroup)
+{
+  /* Check the parameters */
+  assert_param(IS_NVIC_PRIORITY_GROUP(NVIC_PriorityGroup));
+  
+  /* Set the PRIGROUP[10:8] bits according to NVIC_PriorityGroup value */
+  SCB->AIRCR = AIRCR_VECTKEY_MASK | NVIC_PriorityGroup;
+}
+
+/**
+  * @brief  Initializes the NVIC peripheral according to the specified
+  *         parameters in the NVIC_InitStruct.
+  * @param  NVIC_InitStruct: pointer to a NVIC_InitTypeDef structure that contains
+  *         the configuration information for the specified NVIC peripheral.
+  * @retval None
+  */
+void NVIC_Init(NVIC_InitTypeDef* NVIC_InitStruct)
+{
+  uint32_t tmppriority = 0x00, tmppre = 0x00, tmpsub = 0x0F;
+  
+  /* Check the parameters */
+  assert_param(IS_FUNCTIONAL_STATE(NVIC_InitStruct->NVIC_IRQChannelCmd));
+  assert_param(IS_NVIC_PREEMPTION_PRIORITY(NVIC_InitStruct->NVIC_IRQChannelPreemptionPriority));  
+  assert_param(IS_NVIC_SUB_PRIORITY(NVIC_InitStruct->NVIC_IRQChannelSubPriority));
+    
+  if (NVIC_InitStruct->NVIC_IRQChannelCmd != DISABLE)
+  {
+    /* Compute the Corresponding IRQ Priority --------------------------------*/    
+    tmppriority = (0x700 - ((SCB->AIRCR) & (uint32_t)0x700))>> 0x08;
+    tmppre = (0x4 - tmppriority);
+    tmpsub = tmpsub >> tmppriority;
+
+    tmppriority = (uint32_t)NVIC_InitStruct->NVIC_IRQChannelPreemptionPriority << tmppre;
+    tmppriority |=  NVIC_InitStruct->NVIC_IRQChannelSubPriority & tmpsub;
+    tmppriority = tmppriority << 0x04;
+        
+    NVIC->IP[NVIC_InitStruct->NVIC_IRQChannel] = tmppriority;
+    
+    /* Enable the Selected IRQ Channels --------------------------------------*/
+    NVIC->ISER[NVIC_InitStruct->NVIC_IRQChannel >> 0x05] =
+      (uint32_t)0x01 << (NVIC_InitStruct->NVIC_IRQChannel & (uint8_t)0x1F);
+  }
+  else
+  {
+    /* Disable the Selected IRQ Channels -------------------------------------*/
+    NVIC->ICER[NVIC_InitStruct->NVIC_IRQChannel >> 0x05] =
+      (uint32_t)0x01 << (NVIC_InitStruct->NVIC_IRQChannel & (uint8_t)0x1F);
+  }
+}
+
+/**
+  * @brief  Sets the vector table location and Offset.
+  * @param  NVIC_VectTab: specifies if the vector table is in RAM or FLASH memory.
+  *   This parameter can be one of the following values:
+  *     @arg NVIC_VectTab_RAM
+  *     @arg NVIC_VectTab_FLASH
+  * @param  Offset: Vector Table base offset field. This value must be a multiple 
+  *         of 0x200.
+  * @retval None
+  */
+void NVIC_SetVectorTable(uint32_t NVIC_VectTab, uint32_t Offset)
+{ 
+  /* Check the parameters */
+  assert_param(IS_NVIC_VECTTAB(NVIC_VectTab));
+  assert_param(IS_NVIC_OFFSET(Offset));  
+   
+  SCB->VTOR = NVIC_VectTab | (Offset & (uint32_t)0x1FFFFF80);
+}
+
+/**
+  * @brief  Selects the condition for the system to enter low power mode.
+  * @param  LowPowerMode: Specifies the new mode for the system to enter low power mode.
+  *   This parameter can be one of the following values:
+  *     @arg NVIC_LP_SEVONPEND
+  *     @arg NVIC_LP_SLEEPDEEP
+  *     @arg NVIC_LP_SLEEPONEXIT
+  * @param  NewState: new state of LP condition. This parameter can be: ENABLE or DISABLE.
+  * @retval None
+  */
+void NVIC_SystemLPConfig(uint8_t LowPowerMode, FunctionalState NewState)
+{
+  /* Check the parameters */
+  assert_param(IS_NVIC_LP(LowPowerMode));
+  assert_param(IS_FUNCTIONAL_STATE(NewState));  
+  
+  if (NewState != DISABLE)
+  {
+    SCB->SCR |= LowPowerMode;
+  }
+  else
+  {
+    SCB->SCR &= (uint32_t)(~(uint32_t)LowPowerMode);
+  }
+}
+
+/**
+  * @brief  Configures the SysTick clock source.
+  * @param  SysTick_CLKSource: specifies the SysTick clock source.
+  *   This parameter can be one of the following values:
+  *     @arg SysTick_CLKSource_HCLK_Div8: AHB clock divided by 8 selected as SysTick clock source.
+  *     @arg SysTick_CLKSource_HCLK: AHB clock selected as SysTick clock source.
+  * @retval None
+  */
+void SysTick_CLKSourceConfig(uint32_t SysTick_CLKSource)
+{
+  /* Check the parameters */
+  assert_param(IS_SYSTICK_CLK_SOURCE(SysTick_CLKSource));
+  if (SysTick_CLKSource == SysTick_CLKSource_HCLK)
+  {
+    SysTick->CTRL |= SysTick_CLKSource_HCLK;
+  }
+  else
+  {
+    SysTick->CTRL &= SysTick_CLKSource_HCLK_Div8;
+  }
+}
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/