Test Summary
7
SLUUBR4A – February 2018 – Revised December 2018
Copyright © 2018, Texas Instruments Incorporated
bq25970 PWR893 Evaluation Module
2.4
Communication Verification
Use the following steps for communication verification:
1. Click the
Read
button,
Device ACK OK
should appear.
2. In the EVM software, select
Field View
, specify correct device “I2C Address” as defined in the
datasheet, such as CC(66), and so forth.
3. Click the
Read
button,
Device ACK OK
should appear.
4. In the EVM software, make the following changes as necessary
:
•
Select
Disable
for the
Watchdog Timer
•
Change
VAC OVP
for to 14V or higher and make sure
VAC OVP Status
is
Normal
•
Make Sure
VBUS too low for converter to start
and
VBUS too high for converter to start
are both
Normal
Figure 4. Sample of Register Map
5. Click the
Read
button.
Observe
→
Everything
normal
at Fault box
