I2CWriteWord (0x0000, 0x000A, 100)
CCA == 1
I2CReadBlock (0x00, 2, 100)
CCA == 0
Wait for CCA bit
to clear
End
Device is not calibrating
CC offset; retry.
The device is in the
process of calibrating
CC offset while the
CCA bit is set. Host
should
check
the CCA bit more
than once every 0.5 s.
NOT
True
True
False
False
CC_OFFSET MAC Command:
0x000A to 0x0000
I2CWriteWord (0x0000, 0x0000, 100)
Enter Calibration Mode
Exit Calibration Mode
I2CWrite Word (0x0000, 0x000B, 100)
www.ti.com
CC Offset
13
SLUUBH1C – August 2016 – Revised March 2018
Submit Documentation Feedback
Copyright © 2016–2018, Texas Instruments Incorporated
Factory Calibration
3.5
CC Offset
Use MAC commands for
CC Offset
calibration. The host system does not need to write information to the
data flash (DF). See
CONTROL_STATUS: 0x0000
for the description of the
CONTROL_STATUS[CCA]
bit. The host system must ensure that the fuel gauge is UNSEALED.
NOTE:
While the device is calibrating the
CC Offset
, the host system must not read the
CONTROL_STATUS
register at a rate greater than once every 0.5 seconds and no current
should be flowing.
The step labeled
Enter CALIBRATION Mode
refers to
Section 3.3
,
Enter CALIBRATION
Mode
.
The step labeled
Exit CALIBRATION Mode
refers to
Section 3.11
,
Exit CALIBRATION
Mode
.
Figure 3-3. CC Offset Flow