rt-thread/bsp/mm32f327x/Libraries/MM32F327x/HAL_Lib/Src/hal_misc.c

////////////////////////////////////////////////////////////////////////////////
/// @file     hal_misc.c
/// @author   AE TEAM
/// @brief    THIS FILE PROVIDES ALL THE MSIC FIRMWARE FUNCTIONS.
////////////////////////////////////////////////////////////////////////////////
/// @attention
///
/// THE EXISTING FIRMWARE IS ONLY FOR REFERENCE, WHICH IS DESIGNED TO PROVIDE
/// CUSTOMERS WITH CODING INFORMATION ABOUT THEIR PRODUCTS SO THEY CAN SAVE
/// TIME. THEREFORE, MINDMOTION SHALL NOT BE LIABLE FOR ANY DIRECT, INDIRECT OR
/// CONSEQUENTIAL DAMAGES ABOUT ANY CLAIMS ARISING OUT OF THE CONTENT OF SUCH
/// HARDWARE AND/OR THE USE OF THE CODING INFORMATION CONTAINED HEREIN IN
/// CONNECTION WITH PRODUCTS MADE BY CUSTOMERS.
///
/// <H2><CENTER>&COPY; COPYRIGHT MINDMOTION </CENTER></H2>
////////////////////////////////////////////////////////////////////////////////

// Define to prevent recursive inclusion
#define _HAL_MISC_C_

// Files includes
#include "hal_misc.h"

////////////////////////////////////////////////////////////////////////////////
/// @addtogroup MM32_Hardware_Abstract_Layer
/// @{

////////////////////////////////////////////////////////////////////////////////
/// @addtogroup MSIC_HAL
/// @{

////////////////////////////////////////////////////////////////////////////////
/// @addtogroup MISC_Exported_Functions
/// @{

////////////////////////////////////////////////////////////////////////////////
/// @brief  Set the NVIC interrupt vector table.
/// @param  vect_tab
///         This parameter can be any combination of the following values:
///    @arg NVIC_VectTab_RAM
///    @arg NVIC_VectTab_FLASH
/// @param  offset
/// @retval None.
////////////////////////////////////////////////////////////////////////////////
void NVIC_SetVectorTable(u32 vect_tab, u32 offset)
{
    SCB->VTOR = vect_tab | (offset & (u32)0x1FFFFF80);
}

////////////////////////////////////////////////////////////////////////////////
/// @brief  Set the NVIC interrupt priority group.
/// @param  priority_group
///         This parameter can be any combination of the following values:
///    @arg NVIC_PriorityGroup_0
///    @arg NVIC_PriorityGroup_1
///    @arg NVIC_PriorityGroup_2
///    @arg NVIC_PriorityGroup_3
///    @arg NVIC_PriorityGroup_4
/// @retval None.
////////////////////////////////////////////////////////////////////////////////
void NVIC_PriorityGroupConfig(u32 priority_group)
{
    SCB->AIRCR = AIRCR_VECTKEY_MASK | priority_group;
}

////////////////////////////////////////////////////////////////////////////////
/// @brief  NVIC initialization.
/// @param  init_struct
/// @retval None.
////////////////////////////////////////////////////////////////////////////////
void NVIC_Init(NVIC_InitTypeDef* init_struct)
{
    if (init_struct->NVIC_IRQChannelCmd != DISABLE) {
        u32 pri = (SCB_AIRCR_PRIGROUP & ~(SCB->AIRCR & SCB_AIRCR_PRIGROUP_Msk)) >> SCB_AIRCR_PRIGROUP_Pos;

        pri = (((u32)init_struct->NVIC_IRQChannelPreemptionPriority << (0x4 - pri)) |
               (init_struct->NVIC_IRQChannelSubPriority & (0x0F >> pri)))
              << 0x04;

        NVIC->IP[init_struct->NVIC_IRQChannel]           = pri;
        NVIC->ISER[init_struct->NVIC_IRQChannel >> 0x05] = 0x01 << (init_struct->NVIC_IRQChannel & 0x1F);
    }
    else {
        NVIC->ICER[init_struct->NVIC_IRQChannel >> 0x05] = 0x01 << (init_struct->NVIC_IRQChannel & 0x1F);
    }

}

////////////////////////////////////////////////////////////////////////////////
/// @brief  NVIC initialized extension function.
/// @param  init_struct
/// @retval None.
////////////////////////////////////////////////////////////////////////////////
void exNVIC_Init(exNVIC_Init_TypeDef* init_struct)
{
    u32 pri;

    if (init_struct->NVIC_IRQChannelCmd != DISABLE) {
        pri = (SCB_AIRCR_PRIGROUP & ~(SCB->AIRCR & SCB_AIRCR_PRIGROUP_Msk)) >> SCB_AIRCR_PRIGROUP_Pos;

        pri = (((u32)init_struct->NVIC_IRQChannelPreemptionPriority << (0x4 - pri)) |
               (init_struct->NVIC_IRQChannelSubPriority & (0x0F >> pri))) << 0x04;

        NVIC->IP[init_struct->NVIC_IRQChannel] = pri;
        NVIC->ISER[init_struct->NVIC_IRQChannel >> 0x05] = 0x01 << (init_struct->NVIC_IRQChannel & 0x1F);
    }
    else {
        NVIC->ICER[init_struct->NVIC_IRQChannel >> 0x05] = 0x01 << (init_struct->NVIC_IRQChannel & 0x1F);
    }

}

////////////////////////////////////////////////////////////////////////////////
/// @brief  System low power mode configuration.
/// @param  low_power_mode
///         This parameter can be any combination of the following values:
///    @arg NVIC_LP_SEVONPEND
///    @arg NVIC_LP_SLEEPDEEP
///    @arg NVIC_LP_SLEEPONEXIT
/// @param  state: new state of the low power mode.
///         This parameter can be: ENABLE or DISABLE.
/// @retval None.
////////////////////////////////////////////////////////////////////////////////
void NVIC_SystemLPConfig(u8 low_power_mode, FunctionalState state)
{
    (state) ? (SCB->SCR |= low_power_mode) : (SCB->SCR &= ~(u32)low_power_mode);
}

////////////////////////////////////////////////////////////////////////////////
/// @brief  SysTick clock source configuration.
/// @param  systick_clk_source
///         This parameter can be any combination of the following values:
///    @arg SysTick_CLKSource_EXTCLK
///    @arg SysTick_CLKSource_HCLK
/// @retval None.
////////////////////////////////////////////////////////////////////////////////
void SysTick_CLKSourceConfig(u32 systick_clk_source)
{
    (systick_clk_source == SysTick_CLKSource_HCLK) ? (SysTick->CTRL |= SysTick_CLKSource_HCLK) \
    : (SysTick->CTRL &= ~SysTick_CLKSource_HCLK);
}

/// @}

/// @}

/// @}