User`s manual

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Appendix A – Special Functions
There are some special functions that are accessed from the settings screen that are not on the
menu. In general, you will probably not need to use these functions very often, if at all, but you
need to be aware of them in case you do.
Master Reset
A master reset completely clears all flight memory, and resets the flight settings to the defaults.
The default settings are:
Main Altitude: 500
Drogue Enable: 1 (Nose-Over)
To perform a Master Reset, hold the Ctrl and Y keys down together at the Flight Settings screen,
you will then see this screen:
Eggtimer TRS 1.4K Master Reset
**** WARNING ****
DO YOU REALLY WANT TO CLEAR ALL FLIGHT MEMORY???
Press BUTTON for 10 seconds to Reset
To perform the reset, you need to hold the Button on the Eggtimer TRS down for at least 10
seconds. When you do, you will hear a long confirmation tone, then you will see a progress
screen as the memory pages are reset. Leave the Eggtimer alone until the process is complete.
When the reset is complete, you will see “Master Reset Completed”, you need to reset or power
down the Eggtimer TRS before you can use it.
Memory Dump
The Memory Dump writes comma-separated-variable (CSV) data to the serial port containing
the data in every memory location. This function is primarily used by the Eggtimer Rocketry
technical support staff to debug problems that you may encounter, but you can also use it to save
all of the flight data prior to a Master Reset if you choose.
To dump the memory, hold the Button down while the power is off or the Eggtimer is in reset
mode, and continue to hold it down as you turn on the Eggtimer or release the reset. You will
hear a long beep, acknowledging the Monitor mode, and you will see a “MON>” prompt on the
screen. If you hit the “0” (zero) key, the last flight’s memory will be dumped to the serial port;
if you hit the “A” or “a” key, ALL flight memory will be dumped. If you press the “E” button,
the processor’s internal EEPROM is dumped.