Toshiba F Series manual

Chapter 10. Plugins 121

lost. Benchmarks can be resumed if you accidentally load a plugin, or turn o your player, as long as the log le /battery bench.txt is not deleted.

Information explained

On the top of the le you will see various info on how to use the plugin.

Time This column reports the total time of operation of the player. It is not the time that you started the plug-in. If you have your player on for 5 minutes and then start the plugin, it will start measuring from 5 minutes.

Seconds As time, it shows time passed in seconds. Nothing special, it is there because it is free and maybe someone might want to make graphs with seconds.

Level The percent level of the battery estimated by Rockbox. This is an estimation and not an accurate result. Using the real percentage (current battery voltage / top battery voltage) * 100) we can calculate the dierence between the estimation. Goal of this column is to make the estimation algorithm of Rockbox more accurate.

Time Left It shows the estimated (by Rockbox) remaining time until shutdown. Again, as with Level(above), this column can be used to see dierences between real time left and estimated time left. This could help make time left more accurate.

Voltage The battery voltage, the moment the measurement was captured. Measure- ments 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 le. This can give you an idea of how many voltage changes there 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.

SThe "S" column shows the state of the device (Charging, or not). The "C" indicated that the unit was charging when the measurement was captured.

UUSB 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.

The Rockbox manual Toshiba Gigabeat F Series