Kinetis SDK v.2.0 API Reference Manual
Rev. 0
Freescale Semiconductor, Inc.
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Files | |
file | fsl_i2c_edma.h |
Data Structures | |
struct | i2c_master_edma_handle_t |
I2C master edma transfer structure. More... | |
Typedefs | |
typedef void(* | i2c_master_edma_transfer_callback_t )(I2C_Type *base, i2c_master_edma_handle_t *handle, status_t status, void *userData) |
I2C master edma transfer callback typedef. More... | |
I2C Block EDMA Transfer Operation | |
void | I2C_MasterCreateEDMAHandle (I2C_Type *base, i2c_master_edma_handle_t *handle, i2c_master_edma_transfer_callback_t callback, void *userData, edma_handle_t *edmaHandle) |
Init the I2C handle which is used in transcational functions. More... | |
status_t | I2C_MasterTransferEDMA (I2C_Type *base, i2c_master_edma_handle_t *handle, i2c_master_transfer_t *xfer) |
Performs a master edma non-blocking transfer on the I2C bus. More... | |
status_t | I2C_MasterTransferGetCountEDMA (I2C_Type *base, i2c_master_edma_handle_t *handle, size_t *count) |
Get master transfer status during a edma non-blocking transfer. More... | |
void | I2C_MasterTransferAbortEDMA (I2C_Type *base, i2c_master_edma_handle_t *handle) |
Abort a master edma non-blocking transfer in a early time. More... | |
struct _i2c_master_edma_handle |
I2C master edma handle typedef.
Data Fields | |
i2c_master_transfer_t | transfer |
I2C master transfer struct. More... | |
size_t | transferSize |
Total bytes to be transferred. More... | |
uint8_t | state |
I2C master transfer status. More... | |
edma_handle_t * | dmaHandle |
The eDMA handler used. More... | |
i2c_master_edma_transfer_callback_t | completionCallback |
Callback function called after edma transfer finished. More... | |
void * | userData |
Callback parameter passed to callback function. More... | |
i2c_master_transfer_t i2c_master_edma_handle_t::transfer |
size_t i2c_master_edma_handle_t::transferSize |
uint8_t i2c_master_edma_handle_t::state |
edma_handle_t* i2c_master_edma_handle_t::dmaHandle |
i2c_master_edma_transfer_callback_t i2c_master_edma_handle_t::completionCallback |
void* i2c_master_edma_handle_t::userData |
typedef void(* i2c_master_edma_transfer_callback_t)(I2C_Type *base, i2c_master_edma_handle_t *handle, status_t status, void *userData) |
void I2C_MasterCreateEDMAHandle | ( | I2C_Type * | base, |
i2c_master_edma_handle_t * | handle, | ||
i2c_master_edma_transfer_callback_t | callback, | ||
void * | userData, | ||
edma_handle_t * | edmaHandle | ||
) |
base | I2C peripheral base address. |
handle | pointer to i2c_master_edma_handle_t structure. |
callback | pointer to user callback function. |
userData | user param passed to the callback function. |
edmaHandle | EDMA handle pointer. |
status_t I2C_MasterTransferEDMA | ( | I2C_Type * | base, |
i2c_master_edma_handle_t * | handle, | ||
i2c_master_transfer_t * | xfer | ||
) |
base | I2C peripheral base address. |
handle | pointer to i2c_master_edma_handle_t structure. |
xfer | pointer to transfer structure of i2c_master_transfer_t. |
kStatus_Success | Sucessully complete the data transmission. |
kStatus_I2C_Busy | Previous transmission still not finished. |
kStatus_I2C_Timeout | Transfer error, wait signal timeout. |
kStatus_I2C_ArbitrationLost | Transfer error, arbitration lost. |
kStataus_I2C_Nak | Transfer error, receive Nak during transfer. |
status_t I2C_MasterTransferGetCountEDMA | ( | I2C_Type * | base, |
i2c_master_edma_handle_t * | handle, | ||
size_t * | count | ||
) |
base | I2C peripheral base address. |
handle | pointer to i2c_master_edma_handle_t structure. |
count | Number of bytes transferred so far by the non-blocking transaction. |
void I2C_MasterTransferAbortEDMA | ( | I2C_Type * | base, |
i2c_master_edma_handle_t * | handle | ||
) |
base | I2C peripheral base address. |
handle | pointer to i2c_master_edma_handle_t structure. |