Lpc2000

Hi,

  No I meant the TXD and RXD enable of the RXQ1. Here is the table
from the manual.

Operation Table
Tx Select RX Select Function
0         0         Power Down Mode
0         1         Transmit Mode
1         0         Receive Mode
1         1         Power Down Mode

You have to control the RXD and TXD of the RXQ1 inputs (Pins 16 and
16) similar to a RS485 communications to get it to recieve and transmitt.

regards,
Charles


--- In lpc2000@yahoogroups.com, "unikum888" <xtreme@h...> wrote:
> 
> Charles, I use the setup you will se below:
> 
> /*******************INT UART*************************/
> 
> void uart1_isr(void)__irq
> {
> 	if(U1IIR & 0x04){
> 	LCD_Putchar(UART1_RX());				
> 	VICVectAddr = 0;                         
> 	}
> }
> 
> /*******************INIT UART************************/
> 
> void init_uart1(void) {						 
> VICVectAddr1 = (unsigned long) uart1_isr
> VICVectCntl1 = 0x20 | 7;
> VICIntEnable = 1 << 7;
> PINSEL0 |= 0x00050000;  //Enable RxD1 and TxD1              
> U1LCR = 0x83;           //8 bits, no Parity, 1 Stop bit     
> U1DLL = 97;             //9600 Baud Rate @ 15MHz VPB Clock  
> U1LCR = 0x03;                         
> U1IER = 0x01;	
> }								
> 			  	
> /********************WRITE UART*********************/
> 
> void UART1_TX(char tx)  					  
> {                     
> while (!(U1LSR & 0x20));				
> U1THR = tx;                         
> }
> 
> /********************READ UART*********************/
> 
> char UART1_RX(void)  						
> {                      
> while (!(U1LSR & 0x01));
> 	return (U1RBR);
> }
> 
> --- In lpc2000@yahoogroups.com, "charlesgrenz" <charles.grenz@s...> 
> wrote:
> > 
> > How are you controlling the TXD and RXD enables?
> > 
> > Charles
> > 
> > 
> > --- In lpc2000@yahoogroups.com, "unikum888" <xtreme@h...> wrote:
> > > 
> > > Charles, I am using the FM-RXQ1 with MAX3222 between RF-module 
> and 
> > > MCB2100 kit.
> > > 
> > > --- In lpc2000@yahoogroups.com, "charlesgrenz" 
> <charles.grenz@s...> 
> > > wrote:
> > > > 
> > > > Are you using the RF600T, TRXQ1 or FM-RXQ1? Also how do you 
> have it
> > > > wired in if you are not using the RF600T?
> > > > 
> > > > Charles
> > > > 
> > > > 
> > > > --- In lpc2000@yahoogroups.com, "unikum888" <xtreme@h...> 
> wrote:
> > > > > 
> > > > > 9600Baud
> > > > > 
> > > > > --- In lpc2000@yahoogroups.com, "charlesgrenz" 
> > > <charles.grenz@s...> 
> > > > > wrote:
> > > > > > 
> > > > > > 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