Kinetis Software Development Kit中的主题 Re: FLEXIO_I2C_MasterTransferBlocking implementation is missing from SDK 2.0

FLEXIO_I2C_MasterTransferBlocking implementation is missing from SDK 2.0

alexfeinman — Thu, 09 Jun 2016 23:11:48 GMT

If I generate an SDK for an SKU that has FLEXIO (1.0 or 1.1), the resulting fsl_flexio_i2c_master.h contains the following definition:

status_t FLEXIO_I2C_MasterTransferBlocking(FLEXIO_I2C_Type *base,

flexio_i2c_master_handle_t *handle,

flexio_i2c_master_transfer_t *xfer);

However the corresponding fsl_flexio_i2c_master.c does not have the implementation. Obviously, I can implement it myself using FLEXIO_I2C_MasterTransferNonBlocking and a loop, but it looks like an unintentional omission that needs to be corrected

Re: FLEXIO_I2C_MasterTransferBlocking implementation is missing from SDK 2.0

DavidS — Fri, 10 Jun 2016 15:25:49 GMT

Hi Alex,

Good find.

I will notify the KSDK_v2 team.

UPDATE:

status_t FLEXIO_I2C_MasterTransferBlocking(FLEXIO_I2C_Type *base, flexio_i2c_master_transfer_t *xfer)

{

assert(xfer);

flexio_i2c_master_handle_t tmpHandle;

uint32_t statusFlags;

uint32_t result = kStatus_Success;

FLEXIO_I2C_MasterTransferCreateHandle(base, &tmpHandle, NULL, NULL);

/* Set up transfer machine. */

FLEXIO_I2C_MasterTransferInitStateMachine(base, &tmpHandle, xfer);

{

/* Wait either tx empty or rx full flag is asserted. */

while (!((statusFlags = FLEXIO_I2C_MasterGetStatusFlags(base)) &

(kFLEXIO_I2C_TxEmptyFlag | kFLEXIO_I2C_RxFullFlag)))

{

}

result = FLEXIO_I2C_MasterTransferRunStateMachine(base, &tmpHandle, statusFlags);

} while ((tmpHandle.state != kFLEXIO_I2C_Idle) && (result == kStatus_Success));

return result;

}

The KSDK_v2 team is looking into the issue.

Regards,

David

http://www.nxp.com/products/identification-and-security/nfc-and-reader-ics/connected-tag-solutions/ntag-ic-iplus-i-explorer-kit:OM5569-NT322E?fpsp=1&tab=Design_Tools_Tab

Re: FLEXIO_I2C_MasterTransferBlocking implementation is missing from SDK 2.0

alexfeinman — Fri, 10 Jun 2016 22:30:25 GMT

David,

This appears to be taken from the K80 SDK. It seems that unlike FLEXIO 1.1, the SDKs for FLEXIO 1.0 parts, such as KL17 I am using, are based on older code and do not have some of the calls referenced here implemented (e.g. FLEXIO_I2C_MasterTransferInitStateMachine)

UPDATE: Sorry, was looking it the wrong place. This works fine. Thank you. Hoping to see this in the SDK eventually.