Led Blinking example is not working on Arduino Due about bitlash HOT 4 OPEN

Unfortunately, functions cannot be saved through a reboot on the Due because the Due has no EEPROM. This is why your example fails when you say "boot". If you said "startup" instead, it should work.

-br

from bitlash.

I can manually toggle the pin13 with d13=0 or d13=1
but I can only set (no reset) d13 with d13=!d13.
It explains why the toggle13 is blocked with led on.
Concerning the EEprom probleme, I saw a library for writing flash of Arduino Due. Maybe a start of solution ? :)

from bitlash.

Apologies for the delay. I tested this on a Due and it works:

> function toggle13 {d13=!d13;}
saved
> ls
function toggle13 {d13=!d13;};
> run toggle13,1000
> ps
0: toggle13
> stop 0
> ps
> 

I will look into the library you mentioned as it sounds very interesting. If you get to it before me, I do welcome pull requests. Please reopen this and provide details if you can reproduce the problem.

Thanks,

-br

from bitlash.

Apologies, on further examination there is a bug there, and thank you very much for bringing it to my attention.

It appears to be a backward compatibility bug in the Arduino core: on the Due, digitalRead always returns 0 on output pins. It is easy to reproduce with a simple sketch. For now, it's a Bitlash limitation on the Due.

I've opened a bug against the Arduino core here: arduino/Arduino#1597 -- perhaps an alternative to waiting for that fix would be to kludge around the problem by patching Bitlash to track and return the state of the output pins in digitalRead, only on the Due.

Will leave this open pending resolution of the core issue.

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