Evaluation Software Details
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5.3.2
Command Menu
RESET
allows resetting either the current device,
or the entire stack with one command. (Note: The
stack is reset using a BROADCAST command
packet, whether Broadcast is selected as the
current device or not.)
RELOAD SHADOW REGISTER
will re-initialize the
Group-3 Protected Registers from the OTP
EPROM. This is useful to verify programming.
Because the part is shipped unprogrammed, reloading the shadow registers transfers all zeros to the
shadow cells, which will usually result in many ALERTS and FAULTS being triggered. These ALERTS
and FAULTS are normally hidden by the GUI per the OPTION menu settings (see
Startup Options
Dialog
).
REFRESH
updates the screen contents, and is equivalent to the large REFRESH button in the Volatile
registers area.
5.3.3
Tools Menu
PROGRAM
opens a dialog box that programs the
contents of the shadow registers to the OTP
EPROM cells in the bq76PL536A. The data
contained in the equivalent address volatile
registers are used as the data source. For example,
the data in register CONFIG_OT[] are used to
program the EPROM cells which will in turn
initialize the CONFIG_OT[] register at the next
RESET.
INTERFACE SETUP
opens a dialog box that allows changing the SPI communications speed.
OPTIONS
opens a dialog that sets program startup options. These are provided to make the GUI easier
to use and to prevent a slew of alarms (FAULTS and ALERTS) at startup. Programmers wishing to
check their code will want to disable most of these startup niceties during final code checkout. See
Packing List
for details of the startup Options.
MEASUREMENT FILTER SETUP
opens a listbox that controls filtering of the measurement data. This is
a simple LIFO buffer which is then averaged, producing a running average result. The default value is 1
(no filtering), but it can be set from 1 (no filtering) to 20 (heavy filtering).
COMMUNICATIONS MONITOR
opens the SPI-spy text box. All SPI traffic to and from the bq76PL536A
is copied into this box in an easy to read hex format shown below. When first opened, a warning
message is displayed advising the user that the monitor should only be used for short periods to avoid
consuming too much PC memory. If monitoring traffic for more than a few tens of seconds is needed,
use the data logging feature built in to the WinGUI.
SDO data are data sent from the monitored stack to the PC. SDI are data sent from the PC (WinGUI) to
the stack of bq76PL536As. The monitor displays all data sent to and from the stack.
The Communications Monitor box shown in
Figure 7
displays an error found in communicating with a
stack. The error shown is normally encountered by the AUTO_ADDRESS algorithm used by the WinGUI
as it attempts to find all addressed devices – this error results from an attempted poll to a device that does
not exist.
12
bq76PL536A and bq76PL536A-Q1 EVM Quick Start Guide
SLUU437D – October 2010 – Revised July 2015
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