drvsys.c

来自「cortex-m0 LCD1602程序」· C语言 代码 · 共 864 行 · 第 1/5 页

/*               User can check the status of Register Write-Protection Function                           */
/*               with DrvSYS_IsProtectedRegLocked().                                                       */
/*---------------------------------------------------------------------------------------------------------*/
void DrvSYS_DisableBODLowPowerMode(void)
{
    SYS->BODCR.BOD_LPM = 0;
}

/*---------------------------------------------------------------------------------------------------------*/
/* Function: DrvSYS_GetBODState                                                                            */
/*                                                                                                         */
/* Parameters:                                                                                             */
/*               None                                                                                      */
/*                                                                                                         */
/* Returns:                                                                                                */
/*               BOD output status  1: the detected voltage is lower than BOD threshold voltage            */
/*                                  0: the detected voltage is higher than BOD threshold voltage           */
/*                                                                                                         */
/* Description:                                                                                            */
/*               Get Brown-Out Detector state                                                              */
/*---------------------------------------------------------------------------------------------------------*/
uint32_t DrvSYS_GetBODState(void)
{
    return SYS->BODCR.BOD_OUT;
}

/*---------------------------------------------------------------------------------------------------------*/
/* Function: DrvSYS_EnableLowVoltReset                                                                     */
/*                                                                                                         */
/* Parameters:                                                                                             */
/*               None                                                                                      */
/*                                                                                                         */
/* Returns:                                                                                                */
/*               None                                                                                      */
/*                                                                                                         */
/* Description:                                                                                            */
/*               Enable low voltage reset function                                                         */
/*                                                                                                         */
/* Note:                                                                                                   */
/*               Please make sure that Register Write-Protection Function has been disabled before using   */
/*               this function to enable low voltage reset.                                                */
/*               User can check the status of Register Write-Protection Function                           */
/*               with DrvSYS_IsProtectedRegLocked().                                                       */
/*---------------------------------------------------------------------------------------------------------*/
void DrvSYS_EnableLowVoltReset(void)
{
    SYS->BODCR.LVR_EN = 1;
}

/*---------------------------------------------------------------------------------------------------------*/
/* Function: DrvSYS_DisableLowVoltReset                                                                    */
/*                                                                                                         */
/* Parameters:                                                                                             */
/*               None                                                                                      */
/*                                                                                                         */
/* Returns:                                                                                                */
/*               None                                                                                      */
/*                                                                                                         */
/* Description:                                                                                            */
/*               Disable low voltage reset function                                                        */
/*                                                                                                         */
/* Note:                                                                                                   */
/*               Please make sure that Register Write-Protection Function has been disabled before using   */
/*               this function to disable low voltage reset.                                               */
/*               User can check the status of Register Write-Protection Function                           */
/*               with DrvSYS_IsProtectedRegLocked().                                                       */
/*---------------------------------------------------------------------------------------------------------*/
void DrvSYS_DisableLowVoltReset(void)
{
    SYS->BODCR.LVR_EN = 0;
}

/*---------------------------------------------------------------------------------------------------------*/
/* Function: DrvSYS_EnableTemperatureSensor                                                                */
/*                                                                                                         */
/* Parameters:                                                                                             */
/*               None                                                                                      */
/*                                                                                                         */
/* Returns:                                                                                                */
/*               None                                                                                      */
/*                                                                                                         */
/* Description:                                                                                            */
/*               Enable Temperature Sensor                                                                 */
/*---------------------------------------------------------------------------------------------------------*/
void DrvSYS_EnableTemperatureSensor(void)
{
    SYS->TEMPCR.VTEMP_EN = 1;
}

/*---------------------------------------------------------------------------------------------------------*/
/* Function: DrvSYS_DisableTemperatureSensor                                                               */
/*                                                                                                         */
/* Parameters:                                                                                             */
/*               None                                                                                      */
/*                                                                                                         */
/* Returns:                                                                                                */
/*               None                                                                                      */
/*                                                                                                         */
/* Description:                                                                                            */
/*               Disable Temperature Sensor                                                                */
/*---------------------------------------------------------------------------------------------------------*/
void DrvSYS_DisableTemperatureSensor(void)
{
    SYS->TEMPCR.VTEMP_EN = 0;
}

/*---------------------------------------------------------------------------------------------------------*/
/* Function: DrvSYS_EnablePOR                                                                              */
/*                                                                                                         */
/* Parameters:                                                                                             */
/*               None                                                                                      */
/*                                                                                                         */
/* Returns:                                                                                                */
/*               None                                                                                      */
/*                                                                                                         */
/* Description:                                                                                            */
/*               Enable power on reset (POR) control                                                       */
/*                                                                                                         */
/* Note:                                                                                                   */
/*               Please make sure that Register Write-Protection Function has been disabled before using   */
/*               this function to enable POR control.                                                      */
/*               User can check the status of Register Write-Protection Function                           */
/*               with DrvSYS_IsProtectedRegLocked().                                                       */
/*---------------------------------------------------------------------------------------------------------*/
void DrvSYS_EnablePOR(void)
{
    SYS->PORCR = 0;
}

/*---------------------------------------------------------------------------------------------------------*/
/* Function: DrvSYS_DisablePOR                                                                             */
/*                                                                                                         */
/* Parameters:                                                                                             */
/*               None                                                                                      */
/*                                                                                                         */
/* Returns:                                                                                                */
/*               None                                                                                      */
/*                                                                                                         */
/* Description:                                                                                            */
/*               Disable power on reset (POR) control                                                      */
/*                                                                                                         */
/* Note:                                                                                                   */
/*               Please make sure that Register Write-Protection Function has been disabled before using   */
/*               this function to disable POR control.                                                     */
/*               User can check the status of Register Write-Protection Function                           */
/*               with DrvSYS_IsProtectedRegLocked().                                                       */
/*---------------------------------------------------------------------------------------------------------*/
void DrvSYS_DisablePOR(void)
{
    SYS->PORCR = 0x5AA5;
}


/*---------------------------------------------------------------------------------------------------------*/
/* Function:     <BOD_IRQHandler>                                                                          */
/*                                                                                                         */
/* Parameter:                                                                                              */
/*               None                                                                                      */
/* Returns:                                                                                                */
/*               None                                                                                      */
/* Side effects:                                                                                           */
/*                                                                                                         */
/* Description:                                                                                            */
/*               ISR to handle BOD interrupt event                                                         */
/*---------------------------------------------------------------------------------------------------------*/
void BOD_IRQHandler(void)
{
    SYS->BODCR.BOD_INTF = 1;
    if (BOD_callbackFn != NULL)
        BOD_callbackFn();
}

/*---------------------------------------------------------------------------------------------------------*/