Cycle race track lap counter

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•

Gordon

I'd like to have a method to do a reset "in the field", meaning starting everything new when I have to.

Yes, that should be fine...

Uncaught Error: Unable to find or create file

Strange... Could you print the arguments you're giving to Flash.s.write? It might help to figure out if anything is 'off'.

If I keep my storage file in flash and try to upload new code (minified + direct to flash), it gives me this

Wow, I haven't seen that before. And it's reproducable?

I guess maybe Espruino ends up compacting, but that compaction takes so long it causes the flow control to time out. Does the upload take a long time at that point? Do you get a FIFO_FULL message? Although I guess you might have got that at some point in the past.

Is there a way to safely acquire memory without crashing the system?

You should be able to do something like:

m=process.memory();myArray = new Uint8Array((m.free-100)*m.blocksize)

So then you're leaving ~100 memory blocks free for execution. But you may well have to tweak that so you don't get out of memory errors

•

ChristianW in reply to @Gordon
Yes, it's reproducable.
This is/was the actual line:
```
Flash.s.write(Flash.NAME, [CONST.LAP_DATA_SIZE], 0, 1 + CONST.LAP_DATA_SIZE * CONST.LAPS_STORAGE)
```
Being Flash.NAME = 'laps', LAP_DATA_SIZE=8, LAPS_STORAGE=2000 which would be:
```
write('laps', [8], 0, 16001)
```
which worked perfectly fine in the console, but not when called via a setWatch() callback when a button was pressed.
I even changed all the this. references to absolute ones in case the context got lost inside the method.

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