Lpc2000

Hi Bob,

I asked the Philips support the following questions in mid march:

When will be new Errata sheets for the LPC 2106 and 2124 are available ?
When will be newer User manuals of the LPC 2124 are available ?

and I get the following answer for Richard at Philps Support:

"The errata is "in the works", there is severe latency between
production and web posting.
You are correct, the users manual is on the way. "

But I don't know how long are the way and I'm still waiting until today. 

Andreas


--- In lpc2000@yahoogroups.com, "bobbruce000" <bobbruce000@y...> wrote:
> --- In lpc2000@yahoogroups.com, "moostieuk" <moostieuk@y...> wrote:
> > I've tried this before, it appears that once you've put the pins
> > capture/compare mode you cannot read the state directly from the
> > pin.  
> > 
> > I was reading a PWM signal, so in the end I just ended up creating
> > a state machine and in the capture interrupt change the edge
> > triggering for the next capture.
> 
> A state machine won't work for my application.  I suppose I can
> use the capture pins to trigger the interrupt, and read the state
> from another set of pins that mirror the values.  But what a waste
> of pins!  I suppose I could move to a 2114 to get some extra pins,
> but then I need to squeeze the RAM requirements down to only 16k.
> I hate tradeoffs.
> 
> The Philips User Manual is clearly wrong about this.  I read the
> docs carefully, believed what they said, and now I have to toss a
> couple of prototype boards in the trash and rewrite the software
> when I am already behind schedule.  They should fix their dang
> docs and not leave this for the next engineer to trip over.  This
> isn't a printed manual, it is just a PDF file, so it shouldn't be
> much effort to fix. 
> 
>     -bob
> 
> 
> > --- In lpc2000@yahoogroups.com, "bobbruce000" <bobbruce000@y...>
wrote:
> > > I have several pins configured as capture pins which interrupt on
> > > either a rising of falling edge.  Then in the interrupt handler
> > > I read the IOPIN register to get the value.
> > > 
> > > According the description of the IOPIN register on page 81 of the
> > > Philips 210x User Manual, this should work.  I quote:
> > > 
> > >   "The current state of the port pins can always be read from
> > >     this register, regardless of pin direction and mode."
> > > 
> > > But it doesn't seem to work.  I have double and triple checked
> > > my code, and I 95% sure this is not a software bug.  The capture
> > > pins always read zero.
> > > 
> > > Is the user manual wrong?
> > > 
> > >     -bob