You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
225 lines
6.7 KiB
225 lines
6.7 KiB
/** |
|
****************************************************************************** |
|
* @file misc.c |
|
* @author MCD Application Team |
|
* @version V3.5.0 |
|
* @date 11-March-2011 |
|
* @brief This file provides all the miscellaneous firmware functions (add-on |
|
* to CMSIS functions). |
|
****************************************************************************** |
|
* @attention |
|
* |
|
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS |
|
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE |
|
* TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY |
|
* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING |
|
* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE |
|
* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. |
|
* |
|
* <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> |
|
****************************************************************************** |
|
*/ |
|
|
|
/* 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 2011 STMicroelectronics *****END OF FILE****/
|
|
|