On Sun, May 21, 2006 at 12:52:21PM -0400, Dave Lag wrote:
> Wouter van Ooijen wrote:
> >>>With four I/O pins with the ability to do bit bang, is 
> >>
> >>anybody else thinking "trivial low voltage PIC programmer"?
> >>
> >>>  
> >>
> >>I looked at that, too, but I think it is too slow to be 
> >>practical as a programmer.

> > But maybe to download a bootloader (just once)?
> > 
> > Wouter van Ooijen
> But it costs double a cheap prolific adapter?
> D

True. However if it keeps banged bits in sync, it's probably
worth the cost. The problem with most cheap USB to serial
cables is that you have no sync guarantees of modem control
signals. The FTDI cable specifically has a bit bang I/O mode.
If it maintains syncronization between those bits (a big IF
I must admit) then it's probably worth the cost difference.

BAJ
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