Lpc2000

Hey

Thanks for the hint, but it did'nt work... I still got problems...

Jesper

--- In lpc2000@yahoogroups.com, "javida13" <javida13@y...> wrote:
> You need to encapsulate UODLL and DODLM by setting and clearing the 
> DLAB
> 
>  U0LCR |= 0x80;           /* Set DLAB */
>  U0DLL = divisor;
>  U0DLM = (divisor>>8);
>  U0LCR &= ~0x80;          /* Clear DLAB */
> 
> 
> > my PC, the received byte is wrong.
> > This is my test program:
> > 
> > void SetUART(int baud){
> >   unsigned int divisor = pCF / (16 * baud);
> >   
> >   PINSEL0 |= 0x00050005;     /* Enable UART0 & UART1            */
> >   
> >   U0IER = 0x00;                         // disable all interrupts
> >   U0IIR;                                // clear interrupt ID
> >   U0RBR;                                // clear receive register
> >   U0LSR;                                // clear line status 
> register
> >   
> >   U0LCR = 0x83;        /* 8 bits, no Parity, 1 Stop bit, DLAB=1*/
> >   U0DLL = divisor;
> >   U0DLM = (divisor >> 8);
> >   U0LCR = 0x03;       /* DLAB = 0 - no access to UART1 Div.  */
> >   U0IER = 1;
> >   
> >   U1LCR = 0x83;            /* 8 bits, no Parity, 1 Stop bit, 
> DLAB=1*/
> >   U1DLL = divisor;
> >   U1DLM = (divisor >> 8);
> >   U1LCR = 0x03;
> >   U1IER = 1;  
> >   
> >   U0FCR = 0x07;			//enable the FIFO's
> >   U1FCR = 0x07;			//enable the FIFO's
> > }
> > 
> > void __attribute__ ((interrupt("IRQ"))) tc0(void) {
> >   timeval--; 
> >   T0_IR       = 1;                            // Clear interrupt 
> flag
> >   VICVectAddr = 0;                            // Acknowledge 
> Interrupt
> > }
> > 
> > void __attribute__ ((interrupt("IRQ"))) u0(void) {
> >   putcha(U0RBR); 
> >   U0IIR;	
> >   VICVectAddr = 0;
> > }
> > 
> > void __attribute__ ((interrupt("IRQ"))) u1(void) {
> >   status |= (1<<UART_1);
> >   dummy = U1RBR;	
> >   U1IIR;	
> >   VICVectAddr = 0;                            // Acknowledge 
> Interrupt
> > }
> > 
> > void setInterrupt(void)
> >   {
> >   enableIRQ();
> >  
> >   VICIntEnClear = ~0x000000d0;		 
> >   VICIntSelect &= ~0x000000d0; 
> >   VICIntEnable = 0x000000d0;
> >   VICVectAddr0 = (unsigned long)tc0;         
> >   VICVectCntl0 = 0x20 | TIM0;                
> >   VICVectAddr1 = (unsigned long)u0;          
> >   VICVectCntl1 = 0x20 | UART_0;              
> >   VICVectAddr2 = (unsigned long)u1;          
> >   VICVectCntl2 = 0x20 | UART_1;              
> >   }
> > 
> > void init(void)
> >   {
> >   systemInit();
> >   ledInit();
> >   setInterrupt();
> >   SetUART(9600);
> >   }
> > 
> > char putcha(char ch)
> >   {
> >   while (!(U0LSR & 0x20));
> >   return(U0THR=ch);
> >   }
> > 
> > int main (void) {
> > init();
> > while(1)
> >   {	  
> > 	  if (IOPIN0 & (1<<SWPIN))
> > 	    {}
> > 	  else
> > 	    putcha(0x30);  	  
> >   }
> > }
> > When I run this code, I receive 0x63 on my PC?? Any 
suggestions ?? 
> > What am I missing...
> > I've tested the board with the Keil CHARM compiler, with 
> succes..... 
> > Almost the same code....
> > 
> > Regards
> > Jesper Kristensen
> > Denmark