OK, I repeated the test while exciting the uart0 pins on the mote, and it
does lock-up. The problem is in your usage of "start-edge detection" i.e.
urxse : 1 in the config struct. In this case, the MCU generates a single RX
interrupt that has to be handled manually, before one can start with normal
byte receive. The current code in the stack relies on the automatic clearing
of the RX flag, thus the lock-up that you see.
Vlado
On 9/25/07, Vlado Handziski <[EMAIL PROTECTED]> wrote:
>
> Hi Ariel,
>
> unfortunately I can not reproduce the bug that you are seeing on my
> testing tmote sky node.The red led is blinking both with and without that
> line. Can you send me a binary image of the application to rule out
> different source trees.
>
> Vlado
>
> On 9/25/07, Vlado Handziski <[EMAIL PROTECTED]> wrote:
> >
> > Hi Ariel,
> >
> > I'll take a look at the issue later today and get back to you.
> >
> > Vlado
> >
> > On 9/25/07, Ariel Mauricio Nunez Gomez < [EMAIL PROTECTED]> wrote:
> >
> > > Hello everyone,
> > >
> > > I am trying to use Timer0 and Uart0 (Tinyos 2.0.2 (cvs updated 4 days
> > > ago), Tmote Sky, Ubuntu Feisty).
> > > As you can see, led0 blinks if timer is fired, and led1 blinks when a
> > > byte is received over the serial port.
> > >
> > > Problem: When I request the serial port, led0 stops blinking.
> > >
> > > Note: The serial port can be disconnected and it will show the same
> > > behavior.
> > >
> > > Thanks in advance,
> > > Ariel
> > >
> > > code snippet
> > >
> > >
> > > event void Boot.booted()
> > > {
> > > call Timer0.startPeriodic( 1000 );
> > > // call SerialResource.request(); //Uncomment this line to disable
> > > Timer0
> > > }
> > >
> > > event void Timer0.fired()
> > > {
> > > call Leds.led0Toggle();
> > > }
> > >
> > > event void SerialResource.granted(){
> > > call UartStream.enableReceiveInterrupt ();
> > > }
> > > async event void UartStream.receivedByte(uint8_t byte){
> > > call UartStream.disableReceiveInterrupt();
> > > call Leds.led1Toggle();
> > > call UartStream.enableReceiveInterrupt();
> > > }
> > >
> > >
> > > _______________________________________________
> > > Tinyos-help mailing list
> > > [email protected]
> > > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
> > >
> > >
> > >
> >
>
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