C
7. P
HAPTER
LUGINS
Time Left It shows the estimated (by Rockbox) remaining time until shutdown. Again,
as Level, this column can be used to see differences between real time left and
estimated time left. This could help make time left more accurate.
Voltage The current, battery voltage, the moment the measurement was captured.
Measurements are captured when this number changes while benchmarking. This
column can be used to give quite interesting graphs in a spreadsheet program.
(Excel, Calc, e.t.c)
M/DA (Measurements per Disk Activity) The number of measurements stored tem-
porarily in memory, before written on the log file. This can give you an idea
on how many voltage changes are between disk activity (or one hour).
C Stands for Charger. An "A" in that column shows if there was the power adapter
attached to the unit, at the time of the measurement.
S The "S" column shows the state of the device (Charging, or not). The "C" indicated
that the unit was charging when the measurement was captured.
U USB powered. Only for targets that support this. A "U" will indicate if the unit was
using the USB port for powering.
Making graphs
While you can tell how long your battery lasted, with a single look at the last line of the
battery log (/battery bench.txt), the most useful purpose of Battery Benchmark
is to make graphs using a spreadsheet program like Excel or Calc. The battery log
(/battery bench.txt) is in CSV format (comma separated) so you can quite easily
import it to a spreadsheet program.
7.4.3. Chess Clock
The chess clock plugin is designed to simulate a chess clock, but it can be used in any
kind of game with up to ten players.
T
R
HE
OCKBOX MANUAL
Figure 7.6.: Chess Clock
A
S
/P
RCHOS
TUDIO
44
LAYER
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