Revisions Affected:

Revision C

Details:

The I2C.MSTAT[0] bit is not set immediately after writing to the I2C.MCTRL register. This can lead an I²C controller to believe it is no longer busy and continuing to write data.

Workaround:

Add four NOPs between writing to the MCTRL register and polling the MSTAT register.

The workaround is implemented in the TI-provided I2C Controller driver (I2CCC26XX.c) and in the I2C driver Library APIs (driverlib/i2c.c).

The workaround is available in all Software Development Kit (SDK) versions.