[En-Nut-Discussion] UART Ethernut3 stop receiveing bytes after a while

[ml]

Solved a bit :( 

if i build nutos without debug infos all work´s well. for now it´s a
solution, but i wonder how this happens.
in debugger i can see that the irq is never called again but the register´s
are set correctly. i test with 
the UART-loop in a thread. The main thread is still running after the
mistake. The debugger sometimes tries to reach a breakpoint but want´s to
examine a memory-adress far behind the physical memory - seems to be random. 

Martin



ml wrote:
> 
> Hi,
> 
> i run into a problem with uart. the small loop in the example produce an
> echo at the 
> uart. Uart is initialized in normal Mode without handshake and so on.
> If i type in some characters in the terminalwindow all is ok. But if i
> transmit short
> strings from pc with full speed after a while the receiver isn´t working
> anymore.
> In debugger i can see that the sig_UART Interrupt is never called again.  
> 
> when i put in the nutsleep instruction  it works for hours. 
> 
>    NutRegisterDevice(&DEV_UART0, 0, 0); 
>    com1 = fopen(DEV_UART_NAME, "r+b");
> 
>    for(;;) {
>   //   NutSleep(20);
>      if ((c=fgetc(com1)) != EOF) {
>        fputc(c,com1);
>        fflush(com1);
>      }
>    }
> 
> any help for this strange problem ?
> ENUT 4.4.0  with Eclipse and openocd
> Martin
> 

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