fsl_smc.c File Reference

Typedefs
typedef void(*	smc_stop_ram_func_t) (void)

Functions
static void	SMC_EnterStopRamFunc (void)
void	SMC_GetParam (SMC_Type *base, smc_param_t *param)
	Gets the SMC parameter.
void	SMC_PreEnterStopModes (void)
	Prepares to enter stop modes.
void	SMC_PostExitStopModes (void)
	Recovers after wake up from stop modes.
void	SMC_PreEnterWaitModes (void)
	Prepares to enter wait modes.
void	SMC_PostExitWaitModes (void)
	Recovers after wake up from stop modes.
status_t	SMC_SetPowerModeRun (SMC_Type *base)
	Configures the system to RUN power mode.
status_t	SMC_SetPowerModeHsrun (SMC_Type *base)
	Configures the system to HSRUN power mode.
status_t	SMC_SetPowerModeWait (SMC_Type *base)
	Configures the system to WAIT power mode.
status_t	SMC_SetPowerModeStop (SMC_Type *base, smc_partial_stop_option_t option)
	Configures the system to Stop power mode.
status_t	SMC_SetPowerModeVlpr (SMC_Type *base #if(defined(FSL_FEATURE_SMC_HAS_LPWUI) &&FSL_FEATURE_SMC_HAS_LPWUI), bool wakeupMode #endif)
status_t	SMC_SetPowerModeVlpw (SMC_Type *base)
	Configures the system to VLPW power mode.
status_t	SMC_SetPowerModeVlps (SMC_Type *base)
	Configures the system to VLPS power mode.
status_t	SMC_SetPowerModeLls (SMC_Type *base #if((defined(FSL_FEATURE_SMC_HAS_LLS_SUBMODE) &&FSL_FEATURE_SMC_HAS_LLS_SUBMODE)||\‍(defined(FSL_FEATURE_SMC_HAS_LPOPO) &&FSL_FEATURE_SMC_HAS_LPOPO)), const smc_power_mode_lls_config_t *config #endif)
status_t	SMC_SetPowerModeVlls (SMC_Type *base, const smc_power_mode_vlls_config_t *config)
	Configures the system to VLLS power mode.

Variables
static uint32_t	g_savedPrimask
static uint16_t	s_stopRamFuncArray []

Typedef Documentation

smc_stop_ram_func_t

typedef void(* smc_stop_ram_func_t) (void)

Definition at line 21 of file fsl_smc.c.

Function Documentation

SMC_EnterStopRamFunc()

static void SMC_EnterStopRamFunc ( void  )

static

Definition at line 69 of file fsl_smc.c.

{
    uint32_t ramFuncEntry = ((uint32_t)(s_stopRamFuncArray)) + 1U;
    smc_stop_ram_func_t stopRamFunc = (smc_stop_ram_func_t)ramFuncEntry;
    stopRamFunc();
}

Referenced by SMC_SetPowerModeLls(), SMC_SetPowerModeStop(), SMC_SetPowerModeVlls(), and SMC_SetPowerModeVlps().

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SMC_SetPowerModeLls()

status_t SMC_SetPowerModeLls	(	SMC_Type *base #	if(defined(FSL_FEATURE_SMC_HAS_LLS_SUBMODE) &&FSL_FEATURE_SMC_HAS_LLS_SUBMODE)||\‍(defined(FSL_FEATURE_SMC_HAS_LPOPO) &&FSL_FEATURE_SMC_HAS_LPOPO),
		const smc_power_mode_lls_config_t *config #	endif
	)

brief Configures the system to LLS power mode.

param base SMC peripheral base address. return SMC configuration error code.

Definition at line 338 of file fsl_smc.c.

{
    uint8_t reg;
 
    /* configure to LLS mode */
    reg = base->PMCTRL;
    reg &= ~SMC_PMCTRL_STOPM_MASK;
    reg |= (kSMC_StopLls << SMC_PMCTRL_STOPM_SHIFT);
    base->PMCTRL = reg;
 
/* configure LLS sub-mode*/
#if (defined(FSL_FEATURE_SMC_HAS_LLS_SUBMODE) && FSL_FEATURE_SMC_HAS_LLS_SUBMODE)
    reg = base->STOPCTRL;
    reg &= ~SMC_STOPCTRL_LLSM_MASK;
    reg |= ((uint32_t)config->subMode << SMC_STOPCTRL_LLSM_SHIFT);
    base->STOPCTRL = reg;
#endif /* FSL_FEATURE_SMC_HAS_LLS_SUBMODE */
 
#if (defined(FSL_FEATURE_SMC_HAS_LPOPO) && FSL_FEATURE_SMC_HAS_LPOPO)
    if (config->enableLpoClock)
    {
        base->STOPCTRL &= ~SMC_STOPCTRL_LPOPO_MASK;
    }
    else
    {
        base->STOPCTRL |= SMC_STOPCTRL_LPOPO_MASK;
    }
#endif /* FSL_FEATURE_SMC_HAS_LPOPO */
 
    /* Set the SLEEPDEEP bit to enable deep sleep mode */
    SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
 
    /* read back to make sure the configuration valid before enter stop mode */
    (void)base->PMCTRL;
    SMC_EnterStopRamFunc();
 
    /* check whether the power mode enter LLS mode succeed */
    if (base->PMCTRL & SMC_PMCTRL_STOPA_MASK)
    {
        return kStatus_SMC_StopAbort;
    }
    else
    {
        return kStatus_Success;
    }
}

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SMC_SetPowerModeVlpr()

status_t SMC_SetPowerModeVlpr	(	SMC_Type *base #	ifdefined(FSL_FEATURE_SMC_HAS_LPWUI) &&FSL_FEATURE_SMC_HAS_LPWUI,
		bool wakeupMode #	endif
	)

brief Configures the system to VLPR power mode.

param base SMC peripheral base address. return SMC configuration error code.

Definition at line 247 of file fsl_smc.c.

{
    uint8_t reg;
 
    reg = base->PMCTRL;
#if (defined(FSL_FEATURE_SMC_HAS_LPWUI) && FSL_FEATURE_SMC_HAS_LPWUI)
    /* configure whether the system remains in VLP mode on an interrupt */
    if (wakeupMode)
    {
        /* exits to RUN mode on an interrupt */
        reg |= SMC_PMCTRL_LPWUI_MASK;
    }
    else
    {
        /* remains in VLP mode on an interrupt */
        reg &= ~SMC_PMCTRL_LPWUI_MASK;
    }
#endif /* FSL_FEATURE_SMC_HAS_LPWUI */
 
    /* configure VLPR mode */
    reg &= ~SMC_PMCTRL_RUNM_MASK;
    reg |= (kSMC_RunVlpr << SMC_PMCTRL_RUNM_SHIFT);
    base->PMCTRL = reg;
 
    return kStatus_Success;
}

Variable Documentation

g_savedPrimask

uint32_t g_savedPrimask

static

Definition at line 31 of file fsl_smc.c.

Referenced by SMC_PostExitStopModes(), SMC_PostExitWaitModes(), SMC_PreEnterStopModes(), and SMC_PreEnterWaitModes().

s_stopRamFuncArray

uint16_t s_stopRamFuncArray[]

static

Initial value:

= {
    0x2000,         
    0x2808,         
    0xD202,         
    0xBF00,         
    0x1C40,         
    0xE7FA,         
    0xF3BF, 0x8F4F, 
    0xBF30,         
    0xF3BF, 0x8F6F, 
    0x4770,         
}

Definition at line 53 of file fsl_smc.c.

                                       {
    0x2000,         /* MOVS R0, #0 */
    0x2808,         /* CMP R0, #8 */
    0xD202,         /* BCS.N */
    0xBF00,         /* NOP */
    0x1C40,         /* ADDS R0, R0, #1 */
    0xE7FA,         /* B.N */
    0xF3BF, 0x8F4F, /* DSB */
    0xBF30,         /* WFI */
    0xF3BF, 0x8F6F, /* ISB */
    0x4770,         /* BX LR */
};

Referenced by SMC_EnterStopRamFunc().

Go to the source code of this file.