With regular PICs or the Atmel AVR chips, you "Burn" or "Blow" the
program in, non-destructively on the Windowed EPRom type PICs and
EEProm/Flash PICs (it IS done permanently on the One-Time programmable
PICs, they're *lots* cheaper as they don't have the pricey Quartz
window. Production parts usually use OTP parts. "Burn"/"Blow" comes
from blowing the little fuses in the OTP parts, engineers usually use
Windowed aka "JW" parts for development or often-changed firmware.)
On Quartz windowed parts, you have to erase the EPRom before
re-programming (using an UV eraser - I have 3 <G> Takes about 10
minutes to erase a part) - Flash and EEProm parts self-erase, though.
On the BS2, you download the program into Ram storage on the BS2 - Tim
and I are not talking about destroying BS2's (Especially NOT at the
charge you pay for them!), just about helping people download code to
them, or to PICs. Where did you (mis-) read otherwise, Omar? =) Tim's
just reminding me (below) that people who pay the $34 for a BS1, plus
$15 for a carrier board, can just attach it to a serial port to
re-program it (I've avoided Basic Stamps, too many things I do require
FAST! performance; at $6 for a far faster 16F84 part, I feel I'm ahead
<G>) Tim and I aren't likely to destroy ANYthing, yeesh! (Soup
something up, now, that's another matter <EG>)
Mark
Omar Jenkins wrote:
>
> When I said burn I meant dumping the program into the BS2, not
> permanentaly programming the BS2 in a way that it couldn't be changed.
>
> On Tue, 1 Jun 1999, Timothy Gray wrote:
>
> > Umm why burn BS2's for people? 25 cents in parts and you can program the
> > bs2.
> > besides, I get my kicks from wading throught other's code.
>
> {Omar Jenkins class of 1998/2002|"The more you study, the more you know, }
> {Blair HS Graduate & UMCP Frosh | the more you know, the more you forget, }
> {<
> | the more you forget, the less you know."}
> {<
> | ??So Why Study?? }
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