Dmamux

DMAMUX Initialization and de-initialization
void	DMAMUX_Init (DMAMUX_Type *base)
	Initializes the DMAMUX peripheral.
void	DMAMUX_Deinit (DMAMUX_Type *base)
	Deinitializes the DMAMUX peripheral.

DMAMUX Channel Operation
static void	DMAMUX_EnableChannel (DMAMUX_Type *base, uint32_t channel)
	Enables the DMAMUX channel.
static void	DMAMUX_DisableChannel (DMAMUX_Type *base, uint32_t channel)
	Disables the DMAMUX channel.
static void	DMAMUX_SetSource (DMAMUX_Type *base, uint32_t channel, uint32_t source)
	Configures the DMAMUX channel source.
static void	DMAMUX_EnablePeriodTrigger (DMAMUX_Type *base, uint32_t channel)
	Enables the DMAMUX period trigger.
static void	DMAMUX_DisablePeriodTrigger (DMAMUX_Type *base, uint32_t channel)
	Disables the DMAMUX period trigger.
static void	DMAMUX_EnableAlwaysOn (DMAMUX_Type *base, uint32_t channel, bool enable)
	Enables the DMA channel to be always ON.

Detailed Description

Function Documentation

DMAMUX_Deinit()

void DMAMUX_Deinit

(

DMAMUX_Type *

base

)

Deinitializes the DMAMUX peripheral.

This function gates the DMAMUX clock.

Parameters

base	DMAMUX peripheral base address.

brief Deinitializes the DMAMUX peripheral.

This function gates the DMAMUX clock.

param base DMAMUX peripheral base address.

Definition at line 87 of file fsl_dmamux.c.

{
#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
    CLOCK_DisableClock(s_dmamuxClockName[DMAMUX_GetInstance(base)]);
#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
}

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DMAMUX_DisableChannel()

static void DMAMUX_DisableChannel ( DMAMUX_Type *  base, uint32_t  channel  )

inlinestatic

Disables the DMAMUX channel.

This function disables the DMAMUX channel.

Note

The user must disable the DMAMUX channel before configuring it.

Parameters

base	DMAMUX peripheral base address.
channel	DMAMUX channel number.

Definition at line 92 of file fsl_dmamux.h.

{
    assert(channel < FSL_FEATURE_DMAMUX_MODULE_CHANNEL);
 
    base->CHCFG[channel] &= ~DMAMUX_CHCFG_ENBL_MASK;
}

Referenced by uart_lld_stop().

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DMAMUX_DisablePeriodTrigger()

static void DMAMUX_DisablePeriodTrigger ( DMAMUX_Type *  base, uint32_t  channel  )

inlinestatic

Disables the DMAMUX period trigger.

This function disables the DMAMUX period trigger.

Parameters

base	DMAMUX peripheral base address.
channel	DMAMUX channel number.

Definition at line 137 of file fsl_dmamux.h.

{
    assert(channel < FSL_FEATURE_DMAMUX_MODULE_CHANNEL);
 
    base->CHCFG[channel] &= ~DMAMUX_CHCFG_TRIG_MASK;
}

DMAMUX_EnableAlwaysOn()

static void DMAMUX_EnableAlwaysOn ( DMAMUX_Type *  base, uint32_t  channel, bool  enable  )

inlinestatic

Enables the DMA channel to be always ON.

This function enables the DMAMUX channel always ON feature.

Parameters

base	DMAMUX peripheral base address.
channel	DMAMUX channel number.
enable	Switcher of the always ON feature. "true" means enabled, "false" means disabled.

Definition at line 155 of file fsl_dmamux.h.

{
    assert(channel < FSL_FEATURE_DMAMUX_MODULE_CHANNEL);
 
    if (enable)
    {
        base->CHCFG[channel] |= DMAMUX_CHCFG_A_ON_MASK;
    }
    else
    {
        base->CHCFG[channel] &= ~DMAMUX_CHCFG_A_ON_MASK;
    }
}

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DMAMUX_EnableChannel()

static void DMAMUX_EnableChannel ( DMAMUX_Type *  base, uint32_t  channel  )

inlinestatic

Enables the DMAMUX channel.

This function enables the DMAMUX channel.

Parameters

base	DMAMUX peripheral base address.
channel	DMAMUX channel number.

Definition at line 76 of file fsl_dmamux.h.

{
    assert(channel < FSL_FEATURE_DMAMUX_MODULE_CHANNEL);
 
    base->CHCFG[channel] |= DMAMUX_CHCFG_ENBL_MASK;
}

Referenced by uart_lld_start().

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DMAMUX_EnablePeriodTrigger()

static void DMAMUX_EnablePeriodTrigger ( DMAMUX_Type *  base, uint32_t  channel  )

inlinestatic

Enables the DMAMUX period trigger.

This function enables the DMAMUX period trigger feature.

Parameters

base	DMAMUX peripheral base address.
channel	DMAMUX channel number.

Definition at line 122 of file fsl_dmamux.h.

{
    assert(channel < FSL_FEATURE_DMAMUX_MODULE_CHANNEL);
 
    base->CHCFG[channel] |= DMAMUX_CHCFG_TRIG_MASK;
}

DMAMUX_Init()

void DMAMUX_Init

(

DMAMUX_Type *

base

)

Initializes the DMAMUX peripheral.

This function ungates the DMAMUX clock.

Parameters

base	DMAMUX peripheral base address.

brief Initializes the DMAMUX peripheral.

This function ungates the DMAMUX clock.

param base DMAMUX peripheral base address.

Definition at line 73 of file fsl_dmamux.c.

{
#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
    CLOCK_EnableClock(s_dmamuxClockName[DMAMUX_GetInstance(base)]);
#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
}

Referenced by dmaInit().

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DMAMUX_SetSource()

static void DMAMUX_SetSource ( DMAMUX_Type *  base, uint32_t  channel, uint32_t  source  )

inlinestatic

Configures the DMAMUX channel source.

Parameters

base	DMAMUX peripheral base address.
channel	DMAMUX channel number.
source	Channel source, which is used to trigger the DMA transfer.

Definition at line 106 of file fsl_dmamux.h.

{
    assert(channel < FSL_FEATURE_DMAMUX_MODULE_CHANNEL);
 
    base->CHCFG[channel] = ((base->CHCFG[channel] & ~DMAMUX_CHCFG_SOURCE_MASK) | DMAMUX_CHCFG_SOURCE(source));
}

Referenced by uart_lld_start().

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