Control Panel Demonstration
(C) A drop-down box for the Current Amplifier Gain is bit 0 of the CONFIG_1 register.
(D) Two radio buttons allow the user to select the current measurement polarity for the Current Amplifier.
This is bit 2 of the CONFIG_1 register.
(E) Two radio buttons allow the user to select the voltage reference (VREF). This is bit 0 of the CONFIG_2
register.
(F) The CRC Enable/Disable function has a checkbox. Check the box marked CRC Enable to turn on the
CRC feature. This is bit 7 of the CONFIG_2 register.
(G) The POR Enable/Disable function has a checkbox. Check the box marked POR Clear to turn on the
POR clear feature. This is related to bit 0 of the CONFIG_1 register.
(H) The Startup Config Functionality has a checkbox to enable/disable.
5.9.1
Configuration Control Example
As an example of how to use the Configuration Control, change the Current Comparator Threshold to 175
mV, and then press the F2 key to execute the Find Target Command. The I_THRESH bits in the
CONFIG_1 register changes to [0110].
Figure 16. Change to the Current Comparator Threshold to 175 mV at Start-Up
5.10 Power Control
The Power Control section allows the user to have certain components of the measurement system
enabled at the start of the software.
When checked, five checkboxes activate the corresponding components in the bq76925. The default
setting is to have all of the components turned off.
These checkboxes correspond to bits 0 to 4 in the PWR_CTL register.
5.11 Logging Tab
The logging tab is another convenience feature. It allows the user to record the I2C transactions that take
place between the bq76925 software and the bq76925.
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SLUU514
–
July 2011
bq76925EVM Evaluation Module
Copyright
©
2011, Texas Instruments Incorporated
