Fwlib-src
/**
- @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.
* -
© COPYRIGHT 2011 STMicroelectronics
*/
/* 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;
}
}
/**
- @}
*/
/**
- @}
*/
/**
- @}
*/
/******************* © COPYRIGHT 2011 STMicroelectronics *END OF FILE/
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