National Semiconductor bq27411, Руководство пользователя

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Hardware Connection
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8 SLUUAP3A – January 2014 – Revised July 2016
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bq27411 EVM: System-Side Impedance Track™ Technology
6.2 PC Interface Connection
The following steps configure the hardware for interface to the PC.
1. Connect the bq27411-based EVM to the EV2300 or EV2400 using wire leads as shown in Table 4 .
2. Connect the PC USB cable to the EV2300 or EV2400 and the PC USB port.
Table 4. Circuit Module to EV2300 or EV2400 Connections
bq27411EVM EV2300 or EV2400
SDA SDA
SCL SCL
VSS GND/VSS
The bq27411EVM is now set up for operation.
7 Operation
This section details the operation of the bqStudio software.
7.1 Starting the Program
Run bqStudio from the Start | All Programs | Texas Instruments | Battery Management Studio. The main
screen (
Figure 6 ) appears. If instead of Figure 6 appearing, Figure 7 appears, it may mean that the EVM
is not connected to the computer correctly. Make sure that the USB interface (EV2300 or EV2400 or GDK)
and the bq27411 are connected and restart bqStudio. If this still does not resolve the issue, check if the
I2C pullup resistors are connected. Data begins to appear once the <Refresh> (single-time scan) button is
clicked, or when the Scan button is clicked. To disable the scan feature, simply click the
Scan button
again.
The continuous scanning period can be set by opening Window | Preferences → Registers section. The
range for this interval is 0 ms to 65,535 ms. Only items that are selected for scanning are scanned within
this period.
Battery Management Studio provides a logging function which logs the values that were last scanned. To
enable this function, select the Start Log button; this causes the Scan button to be pressed. When logging
is Stopped, the Scan button will still be selected and has to be manually clicked again.