Re: [Sdcc-user] Setting up and sending serial messages

[Maarten B. <sou...@ds...>]

Have you considered using an SPI connected LCD? Or maybe a 
different mcu? This one has only 2kB flash which seems a bit small for 
driving an LCD (considering what one usually wants to do with it).

> Hi Dave,
> 
> --- Dave McGuire <mc...@ne...> wrote:
> > 
> >    For this you'd have to use either an outboard
> > UAR/T, or implement it 
> > in software...shift, toggle pin, wait for one bit
> > period, rinse, 
> > repeat.  It's easy to do and there's code floating
> > around everywhere 
> > for that...google is your friend.
> 
> Ahh, hmm.  I'd rather do this in software, but I
> couldn't find anything useful on google when I
> searched for it.  I'm not exactly sure what I'm
> searching for either, which could be the reason why I
> couldn't find anything ;-)
> 
> 
> > 
> >    Of course if the point is to have a text LCD and
> > a free serial port, 
> > what I'd do is use a standard parallel-interface
> > (no, not "PC parallel 
> > printer port") HD44780-based LCDs that are so
> > well-known and loved in 
> > this field.
> 
> Yea, I would've used one of those LCDs, but the
> project I'm planning on doing is going to require
> quite a few pins from the microcontroller that is not
> just for LCD.  Since the 2051 only has 20 pins, it
> makes adding other components to the microcontroller
> with a LCD that uses half of the available pins a bit
> difficult.  Thats why I went with the serial LCDbug.
> 
> Thanks,
> J Silverman