Lpi2c

Modules
	Lpi2c_master_driver
	Lpi2c_slave_driver

Functions
uint32_t	LPI2C_GetInstance (LPI2C_Type *base)
	Returns an instance number given a base address.

Variables
IRQn_Type const	kLpi2cIrqs []
	Array to map LPI2C instance number to IRQ number, used internally for LPI2C master interrupt and EDMA transactional APIs.
lpi2c_master_isr_t	s_lpi2cMasterIsr
	Pointer to master IRQ handler for each instance, used internally for LPI2C master interrupt and EDMA transactional APIs.
void *	s_lpi2cMasterHandle []
	Pointers to master handles for each instance, used internally for LPI2C master interrupt and EDMA transactional APIs.

Driver version
enum	{   kStatus_LPI2C_Busy = MAKE_STATUS(kStatusGroup_LPI2C, 0) , kStatus_LPI2C_Idle = MAKE_STATUS(kStatusGroup_LPI2C, 1) , kStatus_LPI2C_Nak = MAKE_STATUS(kStatusGroup_LPI2C, 2) , kStatus_LPI2C_FifoError = MAKE_STATUS(kStatusGroup_LPI2C, 3) ,   kStatus_LPI2C_BitError = MAKE_STATUS(kStatusGroup_LPI2C, 4) , kStatus_LPI2C_ArbitrationLost = MAKE_STATUS(kStatusGroup_LPI2C, 5) , kStatus_LPI2C_PinLowTimeout , kStatus_LPI2C_NoTransferInProgress ,   kStatus_LPI2C_DmaRequestFail = MAKE_STATUS(kStatusGroup_LPI2C, 8) , kStatus_LPI2C_Timeout = MAKE_STATUS(kStatusGroup_LPI2C, 9) }
	LPI2C status return codes. More...
#define	FSL_LPI2C_DRIVER_VERSION   (MAKE_VERSION(2, 4, 1))
	LPI2C driver version.
#define	I2C_RETRY_TIMES   0U /* Define to zero means keep waiting until the flag is assert/deassert. */
	Retry times for waiting flag.

Detailed Description

Enumeration Type Documentation

anonymous enum

anonymous enum

LPI2C status return codes.

Enumerator
kStatus_LPI2C_Busy	The master is already performing a transfer.
kStatus_LPI2C_Idle	The slave driver is idle.
kStatus_LPI2C_Nak	The slave device sent a NAK in response to a byte.
kStatus_LPI2C_FifoError	FIFO under run or overrun.
kStatus_LPI2C_BitError	Transferred bit was not seen on the bus.
kStatus_LPI2C_ArbitrationLost	Arbitration lost error.
kStatus_LPI2C_PinLowTimeout	SCL or SDA were held low longer than the timeout.
kStatus_LPI2C_NoTransferInProgress	Attempt to abort a transfer when one is not in progress.
kStatus_LPI2C_DmaRequestFail	DMA request failed.
kStatus_LPI2C_Timeout	Timeout polling status flags.

Function Documentation

LPI2C_GetInstance()

uint32_t LPI2C_GetInstance

(

LPI2C_Type *

base

)

Returns an instance number given a base address.

If an invalid base address is passed, debug builds will assert. Release builds will just return instance number 0.

Parameters

base	The LPI2C peripheral base address.

Returns

LPI2C instance number starting from 0.

brief Returns an instance number given a base address.

If an invalid base address is passed, debug builds will assert. Release builds will just return instance number 0.

param base The LPI2C peripheral base address. return LPI2C instance number starting from 0.

Variable Documentation

kLpi2cIrqs

IRQn_Type const kLpi2cIrqs[]

extern

Array to map LPI2C instance number to IRQ number, used internally for LPI2C master interrupt and EDMA transactional APIs.

Array to map LPI2C instance number to IRQ number, used internally for LPI2C master interrupt and EDMA transactional APIs.

s_lpi2cMasterHandle

void* s_lpi2cMasterHandle[]

extern

Pointers to master handles for each instance, used internally for LPI2C master interrupt and EDMA transactional APIs.

Pointers to master handles for each instance, used internally for LPI2C master interrupt and EDMA transactional APIs.

s_lpi2cMasterIsr

lpi2c_master_isr_t s_lpi2cMasterIsr

extern

Pointer to master IRQ handler for each instance, used internally for LPI2C master interrupt and EDMA transactional APIs.

Pointer to master IRQ handler for each instance, used internally for LPI2C master interrupt and EDMA transactional APIs.