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Lpc2000

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Message

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

2005-04-19 by unikum888

So I have it running now! I removed all interrupt related in the 
UART driver and made a little filter function, that will only let 
zero and ones in. (Just to get rid of all airborne noise input).

Thanks for you help everyone...

--- In lpc2000@yahoogroups.com, "unikum888" <xtreme@h...> wrote:
> 
> I'll try that and make a follow up later this week.
> 
> --- In lpc2000@yahoogroups.com, "charlesgrenz" 
<charles.grenz@s...> 
> wrote:
> > 
> > The only thing I see that may put the unit into some strange 
mode 
> is
> > that your code below may have to be set in a different order 
like 
> this.
> > 
> > > 		case 0:						
> > > 	 //TX mode
> > > 		IODIR0=RFModul;
> > > 		IOSET0=RXSelect;
> > > 		IOSET0=TXSelect;
> > > 		IOCLR0=CHSelect;
> > > 		IOCLR0=TXSelect;
> > > 		break;
> > > 		case 1:						  
> > > 	//RX mode
> > > 		IODIR0=RFModul;
> > > 		IOSET0=TXSelect;
> > > 		IOSET0=RXSelect;
> > > 		IOCLR0=CHSelect;
> > > 		IOCLR0=RXSelect;
> > > 		break;
> > > 		default:
> > > 		break;
> > 
> >  If that does not work then it would be time to drop a scope to 
the
> > RXD and TXD pins between the LPC to make sure that there is data
> > transmitted and the RXQ1 is getting it. I when the check the RXD 
of
> > the reciever output of the RXQ1 to make sure that it is sending 
> data
> > out from the transciver and that it is the correct baudrate and 
> such.
> > 
> > regards,
> > Charles
> > 
> > 
> > 
> > --- In lpc2000@yahoogroups.com, "unikum888" <xtreme@h...> wrote:
> > > 
> > > I have made the functions below (I use a lot of defines that 
are 
> in 
> > > the RF.h file):
> > > 
> > > void RfTx(char data)
> > > {
> > > 	RFSet(0);
> > > 	UART1_TX(data);
> > > }
> > > 
> > > 
> > > char RfRx(void)
> > > {
> > > 	RFSet(1);
> > > 	return(UART1_RX());
> > > 
> > > }
> > > 
> > > void RFSet(int mode)
> > > {
> > > 	switch(mode){
> > > 		case 0:						
> > > 	 //TX mode
> > > 		IODIR0=RFModul;
> > > 		IOSET0=RXSelect;
> > > 		IOCLR0=TXSelect;
> > > 		IOCLR0=CHSelect;
> > > 		break;
> > > 		case 1:						  
> > > 	//RX mode
> > > 		IODIR0=RFModul;
> > > 		IOCLR0=RXSelect;
> > > 		IOSET0=TXSelect;
> > > 		IOCLR0=CHSelect;
> > > 		break;
> > > 		default:
> > > 		break;
> > > 	}
> > > 
> > > 
> > > }
> > > For now I have only testet the system one way. That means that 
I 
> > > have set one MCB to send and another to receive. By that I 
> wouldn't 
> > > mean that it was necessary to have any delay after switching 
(as 
> I 
> > > don't do that). I call the RfTx function from inside the while 
> loop 
> > > in main of the transmitting MCB end RfRx from inside the while 
> loop 
> > > of the receiving MCB. I Really can't see the why this is 
> bothering 
> > > me so much. 
> > > 
> > > 
> > > --- In lpc2000@yahoogroups.com, "charlesgrenz" 
> <charles.grenz@s...> 
> > > wrote:
> > > > 
> > > > Ok that's good, but I did not see any controls for those in 
> the 
> > > snipet
> > > > of code you sent before. Is the TXD routine polled? Are you 
> waiting
> > > > until you finish sending the data from the TXD shift 
register 
> > > before
> > > > switching the TXD enable off? If so, how are you doing this?
> > > > 
> > > > Charles
> > > > 
> > > > --- In lpc2000@yahoogroups.com, "unikum888" <xtreme@h...> 
> wrote:
> > > > > 
> > > > > 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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