Lpc2000

What's your baudrate set for on the Kiel units?

Charles

--- In lpc2000@yahoogroups.com, "unikum888" <xtreme@h...> wrote:
> 
> uwe, I can send data from pc to MCB and the other way around without 
> problems. I have checked the connections some 100 times :-) and 
> there should be no mistakes there.
> 
> --- In lpc2000@yahoogroups.com, "Uwe Arends" <Uwe_Arends@o...> wrote:
> > Kasper,
> > 
> > > I have a strange problem. I have two MCB2100 boards from Keil 
> where 
> > > one is transmitting data out on the COM1 and the other is 
> receiving 
> > > data on the COM1.
> > > If i put a cable between them the receiver part writes the data 
> out 
> > > on the attached display very fine.
> > > 
> > > I connect my wireless RXQ1(in transmit mode) adapter with 
> attached 
> > > RS232 converter to transmitting MCB2100 kits COM1.
> > > 
> > > In the other end I find out that the data is received fine by 
> > > attaching the RXQ1(in receive mode) via an RS232 converter to at 
> PC 
> > > that runs Hyperterminal.
> > 
> > Does sending from PC to the receiving MCB work (connected by 
> cable)?
> > What might be happening is, that you have outputs driving each 
> other.
> > The PC has its RXD on pin 2, the MCB has it on pin 3 of the 9pin
> > DSub.
> >  
> > > I should now be able to attach the recieving RXQ1 with attached 
> > > RS232 converter to the MCB2100's COM1 and write received data 
> out 
> > > onto the display.
> > >
> > > Well, whenever I do that the LPC2129 freezes totally. I have to 
> > > unmount the RXQ1 and reset the whole MCB2100 kit again.
> > 
> > Well, why it would freeze totally is a mistery in the scenario of 
> > outputs driving each other, but maybe voltage regulation gets 
> upset?
> > I don't recall the LPC's having a brownout detector that would 
> handle
> > this at the moment.
> > 
> > Maybe this helps :o)
> > 
> > -uwe