Hi,
I'm not sure about your problem. But I think you should check the
TOSH_DATA_LENGTH to make sure that your data is within the
limit of the mote's message.
Also, have you change the data structure inside your mote's
firmware when you change the HelloMsg struct ?
Regards,
-daniel
-------- Original Message --------
> From: "DAE HEE KIM" <[EMAIL PROTECTED]>
> Sent: Saturday, July 21, 2007 8:58 PM
> To: tinyos-help@Millennium.Berkeley.EDU
> Subject: [Tinyos-help] Can I use float or double type in message when I want
> to use mig ?
>
> Hello
>
> I am using micaz(2.4Ghz), tinyos 2.0.1, linux(fedora 6), mib510.
>
> Can I use float or double type in message when I want to use mig?
> When I used only uint type, MsgReader with mig works well, but when I used
> double(or float) type, MsgReader with mig doesn't work.
>
> 1) OK : only when I used int type, I found out result through MsgReader as
> followings
> - message define
> typedef struct HelloMsg {
> uint16_t nodeid_; // node id
> uint16_t type_;
> uint8_t x_;
> uint8_t y_;
> uint16_t seqno_; // message sequence number
>
> uint16_t counter; // for blinking
> } HelloMsg_t;
>
> - result (MsgReader)
> > java net.tinyos.tools.MsgReader HelloMsg
>
> 1185020442862: Message <HelloMsg>
> [nodeid_=0x0]
> [type_=0x1]
> [x_=0x0]
> [y_=0x0]
> [seqno_=0x0]
> [counter=0x40a0]
>
>
> 2) Error : when I used double type in message, I could see error in
> MsgReader as following
> - message define
> typedef struct HelloMsg {
> uint16_t nodeid_; // node id
> uint16_t type_;
> uint8_t x_;
> uint8_t y_;
> double temp_; // <-- I also have tested in case of "float
> temp_"
> uint16_t seqno_; // message sequence number
>
> uint16_t counter; // for blinking
> } HelloMsg_t;
>
> - result (MsgReader)
> > java net.tinyos.tools.MsgReader HelloMsg
>
> receive error for HelloMsg (AM type 6): invalid length message
> received (too short)
> ......
>
> Thanks.
>
> --
> DaeHee Kim (Danny)
> Department of Computer Science, State University of NewYork at Binghamton.
> Cell Phone : 1-607-321-9574
> Address : 13-A Andrea Dr, Vestal, NY, 13850
> email-address : [EMAIL PROTECTED], [EMAIL PROTECTED]
>
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> Tinyos-help mailing list
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