Chapter 11. Plugins
134
U
USB powered. Only for targets that support this. A “U” will indicate if the unit was
using the USB port for power at the time of the measurement.
Usage
The log file can be used to tell you how long the battery lasted (with some limitations, see
below), but it is most useful for graphing discharge curves in order to improve Rockbox’s
estimation of battery level and time remaining. The battery log (
battery_bench.txt
)
is in CSV format (comma separated variables) and thus can be easily imported into a
spreadsheet or similar program.
Limitations
As
Battery Benchmark
needs to write the data held in memory to disk in order to
save them, it is possible that should Rockbox shut down due to low battery then there
will not be enough power remaining to write the data to disk. Therefore all measurements
since the previous save will be lost.
11.4.2. Calculator
Figure 11.44.: Calculator
This is a simple scientific calculator for use on the player. It works like a standard
calculator. Pressing the “1st” and “2nd” buttons will toggle between other available
math functions.
Key
Remote Key
Action
Move around the keypad
Select a button
Delete last entered digit or clear after cal-
culation
Calculate
Quit
The Rockbox manual
(version rUnversioned directory-141216)
Iaudio M3
