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Lpc2000

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Message

Re: LPC2129 + MAX563 + RXQ1(433MHz wireless)...

2005-04-18 by unikum888

Charles, sorry I misunderstood you completely :-)
I have the controlpins of the RXQ1 set by I/O pins on the LPC2129. I 
have made an RfRx and an RfTx function, that sets the RXQ1 and 
either receive or send to the UART.
I/O pin settings on the LPC2129 are just made by IOSET and IOCLR.
I am sure that the RXQ1 modules are set right, because I have 
measured and measued until my scopeprobe is almost worn down...

--- In lpc2000@yahoogroups.com, "charlesgrenz" <charles.grenz@s...> 
wrote:
> 
> 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

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