Hi all, When we started to use an external crystal oscillator, the problem is resolved. We had to change UART enum values under:
tinyos-2.x/tos/chips/msp430/usart/msp430usart.h (i.e. UBR_1MHZ_* & UMCTL_1MHZ_*) and mapping in Msp430ClockInit.defaultInitClocks(): tinyos-2.x/tos/chips/msp430/timer/Msp430ClockP.nc Cheers, Bulut On Tue, Mar 18, 2008 at 6:52 PM, Bulut ERSAVAS <[EMAIL PROTECTED]> wrote: > Afonso, > > In our case, it seems like the problem happens at extreme > temperatures. Clock frequency for the UART is affected by the > deviation on Msp430's internal DCO. In your case, similar problem may > be the cause. Any other theories? > > Thanks, > Bulut > > On Mon, Mar 17, 2008 at 11:06 PM, Afonso Ribas <[EMAIL PROTECTED]> > wrote: > > Hey, > > > > I am facing a similar problem. I am using micaz and some packets > received > > from serial are corrupted. > > In my payload I have the NODEID, a seq. n° and others things like sensor > > readings. Sometimes in my java app, I have some messages where NodeID, > seq. > > number, and the readings are ZERO. > > I either don't know what is the problem. > > > > > > > > > > > > > > Date: Fri, 14 Mar 2008 16:55:45 +0200 > > > From: "Kaan Tuna" <[EMAIL PROTECTED]> > > > Subject: [Tinyos-help] corrupted data from serial port > > > To: [email protected] > > > Message-ID: > > > <[EMAIL PROTECTED]> > > > Content-Type: text/plain; charset="iso-8859-1" > > > > > > > > > > > > > > > Hi, > > > When using Tinyos 2.0.2, my root node connected to PC sends sometimes > > > corrupt packets through serial port, starting with BE or FE, instead > of > > > the (7E....7E) formation. > > > Has anyone encountered a problem like this before ? > > > Any idea or help would be granted. > > > > > > Kaan > > > -------------- next part -------------- > > > An HTML attachment was scrubbed... > > > URL: > > > https://www.millennium.berkeley.edu/pipermail/tinyos-help/attachments/20080314/e8d61de9/attachment.htm > > > > > > > > > > > > _______________________________________________ > > Tinyos-help mailing list > > [email protected] > > > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help > > >
_______________________________________________ Tinyos-help mailing list [email protected] https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
