Why does DATA or EEPROM not work 18f2450 ?

[Bonxy]

OMG, I'm a total idiot, I've been looking at the 2455 datasheet all this time

My project is prety scuppered without being able to persist some values on power down, do you know if I could use something else with that processor, maybe peek or pokecode or something ?.

Thanks for your help Bruce

[Bruce]

The easy route would just be to use the 2455, but you could use ERASECODE, WRITECODE and READCODE.

This memory wears out a lot faster than EEPROM, and you have to erase before writes, and deal with different block sizes, etc, but it's do-able.

Melanie posted a nice tutorial here somewhere on this.

[Bonxy]

Bruce

I will have a go with the writecode / readcode and see how that goes....

Thanks for your help :-)

[mackrackit]

http://www.picbasic.co.uk/forum/showthread.php?t=137

[Bonxy]

Thanks Dave & Bruce

I tried with no success to use the write / readcode, so I ordered some 18f13k50's today and while I was at it I realised my dev board (easypic 3) would not program em, so I splashed out on a pickit3 programmer too lol, new toys to play with! yey

I'ts going to be oh so easy with these new pic's and me shiney new programer, right....?

[mister_e]

I'm surprised the EasyPic 3 can't program theses... I would try to download the latest MikroProg Suite from MikroElektronika website and see what happen.

More toys never hurt, that's for sure, and now you can also program them directly in circuit without nasty adapters

[Bonxy]

Hmm, acording to the pickit3 bumf, it now can program all pics, unless I have read the description wrong (again).

http://www.microchip.com/pickit3