Curt, it is my understanding that you can use the match registers without changing the I/O pins but I will make sure this statement is true. In regards to the number of I/O pins there is relief on the way. The LPC2114 / LPC2124 is in a 64-pin package and offers additional GPIO pins. According to my information the 2114 is very similar priced to the LPC2104 but offers more I/O pins and a 4-channel 10-ADC as well as a second SPI interface. For RAM intensive applications however, the 2105/2106 offer 32/64k RAM which is not an option for the 64-pin device. Overall it seems that Philips is serious with the slogan "Let's make things better" ;-) Bob --- In lpc2100@yahoogroups.com, "Curt Powell" <curt.powell@s...> wrote: > I had looked at the timers before but it was unclear if you would have > to give up GPIO pins by putting them into alternate function mode (we're > already pin-constricted). I'm hoping for something with this type of > functionality but that doesn't require giving up such vital (to us) > resources as i/o pins. Care to guess whether the match registers could > be used without putting the i/o pins into alternate function mode? > > > -----Original Message----- > From: Robert Adsett [mailto:radsett@a...] > Sent: Friday, December 05, 2003 8:16 AM > To: lpc2100@yahoogroups.com > Subject: Re: [lpc2100] Delay routines > > > > At 10:28 AM 12/3/03 -0800, you wrote: > >Can anyone point me to some delay() routines for the lpc? I can handle > > >milliseconds and above but I need something that works down in the > >microseconds range and maybe as low as 50-100ns if I can get it. > > > >Curt > > > I'm just starting to look into this myself. A pointer in the general > direction. Look at timer 0 (or 1) and the match registers). I'll > followup > with more later. > > Robert > > " 'Freedom' has no meaning of itself. There are always restrictions, > be they legal, genetic, or physical. If you don't believe me, try to > chew a radio signal. " > > Kelvin Throop, III > >
Message
Re: Delay routines
2003-12-05 by lpc2100_fan