[sdiy] 6402 UART

[Karl Ekdahl]

Thanks to all who replied, it seems i've been on the
wrong track from the start here. 

Everyone suggests the PIC16F628 instead of the 16F84
and it does indeed seem like a better choice. Why i
went for the UART thingy is because i don't have very
much money, but i do have a couple of 6402s, and i
thought that when trying to learn pic assembler, a
serial protocol thingy wouldn't be the best way to
start.... :)

...so a small question: i've built a TAIT classic
programmer, could i use it to program 16f628:s? It
would save me some time....

/Karl

 --- Karl Ekdahl <_nial_ at yahoo.com> skrev: > As i
would still need a 16f84, i was thinking of
> using
> a 16mhz clock driving the PIC and setting the TMR0
> prescaler to 1:32 and driving the UART trough TMR0.
> Anyone sees any problems with this approach?
> 
> /Karl
> 
>  --- Tom Arnold <xyzzy at sysabend.org> skrev: > On
> Mon,
> Sep 15, 2003 at 11:14:03AM +0200, Karl
> > Ekdahl wrote:
> > > Hello all, i'm new to all this PIC and UART
> > thingies
> > > so just a small question: i have a couple of
> 6402
> > > UARTs, so i was thinking that i might as well
> use
> > them
> > > rather than going into serial programming in the
> > pic
> > > from the start. The spec says that the clock
> lines
> > > should be 16x transfer rate, so if i want to do
> > midi
> > > (31250kbps) i should drive it with 500khz right?
> > 
> > Thats correct.  However I've personally gotten
> > hooked on RA Penfolds method
> > of using a 2mhz xtal and dividing it down ( he
> > usually uses a 4024 in his
> > example circuits ).  2mhz xtals tend to be dirt
> > cheap and easily available.
> > 
> > The book Electronic Music and MIDI Projects has
> > several 6402 based projects
> > in it however they are very basic so I'd only look
> > at the book if you can
> > borrow it from a friend or library, otherwise
> you'll
> > probably think you've
> > wasted money...
> > 
> > -- 
> > 
> >
>
------------------------------------------------------------------------
> >  - Tom Arnold -       When I was small, I was in
> > love,                  - 
> >  - Sysabend   -       In love with everything.    
>  
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>  
> >                    - 
> >  --------------         -- Thomas Dolby,
> "Cloudburst
> > At Shingle Street" -
> >  
> 
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