[sdiy] Re: Digi-Mod [was: source for many, small, simple PCB's ?? for educational use]

[Tom Wiltshire]

On 4 Mar 2009, at 14:52, Seb Francis wrote:

>
>>> Now I just hope I can get all the software written and  
>>> functioning before I run out of flash write-cycles ... 100 cycle  
>>> min  / 1000 cycle typ. endurance is kind of low - much lower than  
>>> older dsPICs.  The only thing that gives me some hope is that  
>>> this is spec'ed over -40 to 85C, so perhaps at 20-30C one can get  
>>> a lot more cycles?
>>
>> Cross my fingers - I have been using the same board / chip for  
>> development on a couple of different projects and haven't run out  
>> of flash cycles yet. I'd guess I'm probably in the 200-300 cycles  
>> range and it's still working fine.
>>
>
> That's good to know :)
>
> I wonder how you know when they go bad though .. hopefully  
> immediate verification errors, or could the memory change its state  
> at a later stage?

Yes, I'd like to know that too. I've been following this thread with  
interest, since I've got a dsPIC 33FJ128GP802 sat in my breadboard  
which has been programmed up to be the brain of about 5 different  
ideas already. The poor thing must be feeling quite worn out. I  
wonder how much life it has left.

T.