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'16F84 FLASH write cycles?'
2000\04\09@011300 by Dale Botkin

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I've been working on a couple of projects, enjoying the speed with which I
can try out one hosed-up version of my lame software after another
comapred to the /JW part I was using before.  I was looking through the
'F84 data sheet, though, and noticed the FLASH is rated at min. 100, typ.
1000 erase/write cycles.  I figure I've probably come close to 100 already
- I may have done 50 just today!  So hwo worried should I be about the
number of times I reprogram this chip?

Dale
(who finally has a perfectly working digital thermometer with LCD display,
woo-hoo!)
---
The most exciting phrase to hear in science, the one that heralds new
discoveries, is not "Eureka!" (I found it!) but "That's funny ..."
               -- Isaac Asimov

2000\04\09@030055 by Don McKenzie

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Dale Botkin wrote:
>
> I've been working on a couple of projects, enjoying the speed with which I
> can try out one hosed-up version of my lame software after another
> comapred to the /JW part I was using before.  I was looking through the
> 'F84 data sheet, though, and noticed the FLASH is rated at min. 100, typ.
> 1000 erase/write cycles.  I figure I've probably come close to 100 already
> - I may have done 50 just today!  So hwo worried should I be about the
> number of times I reprogram this chip?

here is a little experiment i did back in 1995:
http://www.dontronics.com/84.html#spade

Don McKenzie    spam_OUTdonTakeThisOuTspamdontronics.com      http://www.dontronics.com

World's Largest Range of Atmel/AVR and  PICmicro Hardware and  Software.
Free Basic Compiler and Programmer http://www.dontronics.com/runavr.html

2000\04\09@215526 by Dale Botkin

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Thanks, Don.  I figured they were probably being extremely conservative in
the data sheet, but wanted to make sure.  Having an 'F84 speeded things up
immensely.  Oddly, there were also bits of code that refused to work as
they should on the 16C711/JW that work perfectly fine on the 16F84, with
no changes - not even reassembly, the same hex file.  Odd.  Don't know if
it was RAM getting corrupted by light thru the erase window, or just
something I forgot regarding the A/D pins on the 711.

Anyway, now I see why most hobbyists seem fixated on the 16F84...

Dale

On Sun, 9 Apr 2000, Don McKenzie wrote:

{Quote hidden}

---
The most exciting phrase to hear in science, the one that heralds new
discoveries, is not "Eureka!" (I found it!) but "That's funny ..."
               -- Isaac Asimov

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