How to get rid of all save() flash memory code?

I experiment with some standalone datalogger which issues save() internally for data persistency.

When I use reset(), the code is still in the flash memory and can be used with load(). That's OK.
But what is the correct way to reset the flash memory to a neutral state?

For the moment in time I use "reset();save()"

But when the PICO is connected to a USB I get a constant green LED and the dump() says:

dump()
setSleepIndicator(B12);
digitalWrite(B12,1);
=undefined

1st question:
So is there a way to clear the flash so there is no "setSleepIndicator(B12); digitalWrite(B12,1);" ?

2nd question:
Is there a way for a 'mute' save().
save() generates a lot of output to the console; in standalone this may overflow the buffers.

Greetings from Frankfurt/Germany, Uli

That's odd. Does it work better if you do reset() and save() as two separate commands? I think it says in the documentation, but reset() will reset the chip without actually saving anything.

There isn't a way to 'mute' save I'm afraid, but using save() to save data that changes all the time isn't a good idea anyway - it rewrites all of flash each time, so it can wear out the flash memory inside Espruino relatively quickly.

Have you seen the Flash EEPROM Library - that will allow you to save data to flash memory, but it does so using a simple 'journalling' system which means that all of the flash memory gets used up before it is erased.

Hi Gordon,

looks like the setSleepIndicator() is not affected by the save() for whatever reason.
I just had a setSleepIndicator("") and the dump() doesn't show the code any more after the save.
Strange.

thanks for the link to Flash EEPROM Library, I will have a look.

For codingnights, I just create a sequence of experiments with the 'bare' PICO
so even newbies can create great effects with just a little bit of javascript in 2hrs time.
Just a handful of simple statements and try to make creative use of a button and 2 LEDs.
"Single Button Combination Lock" is a great example what can be achieved.

Hi Gordon,
it looks like there is a little bug with the setSleepIndicator(LED1) which is not cleard with reset():
I set the Indicator and run a save(); but after a reset() and a following save(), the dump() still showed the setSleepIndicator(B2).
After calling setSleepIndicator() with undefined argument the dump is empty. So looks like this resists the reset() processing:

>dump()
setSleepIndicator(B2);
digitalWrite(B2,1);
=undefined
>reset();
=undefined
 _____                 _
|   __|___ ___ ___ _ _|_|___ ___
|   __|_ -| . |  _| | | |   | . |
|_____|___|  _|_| |___|_|_|_|___|
          |_| http://espruino.com
 1v84 Copyright 2015 G.Williams
>save();
=undefined
Erasing Flash.....
Writing...
Compressed 81600 bytes to 854
Checking...
Done!
>dump()
setSleepIndicator(B2);
=undefined
>setSleepIndicator()
=undefined
>dump()
=undefined

Ahh, thanks! I just fixed this, so it'll be in the next version