[Tinyos-help] Create a serial packet

[David Gay]

I would also suggest using (at least as a starting point) the C code
for packet transmission in
tinyos-2.x/support/sdk/c (for T2) or tinyos-1.x/tools/src/sf (T1).

On 9/27/07, Michael Schippling <schip at santafe.edu> wrote:
> Most likely you have not calculated the CRC correctly...
> danielw just sent a message about how to do this in T2:
> http://mail.millennium.berkeley.edu/pipermail/tinyos-help/2007-September/028109.html
> MS
>
> Roberto wrote:
> > I forgot an important (in my opinion) detail:
> > at the mica side, I would like recevie packet send by serial port (UART)
> > using these followuing statements:
> >
> >   event message_t *UartReceive.receive[am_id_t id](message_t *msg, void
> > *payload, uint8_t len) {...}
> >
> > Help me, please
> >
> >
> > 2007/9/27, Roberto Gioè <roberto.gioe at gmail.com
> > <mailto:roberto.gioe at gmail.com>>:
> >
> >     Hi,
> >     yes I'm italian.
> >     I'm still looking for a solution to my problem: send data from a pc
> >     (or a stargate) to a mote using the serial port.
> >     I hope someone help me to found a solution very soon
> >     good luck
> >
> >     RG
> >
> >     2007/9/27, Leonardo <leosayan4 at gmail.com <mailto:leosayan4 at gmail.com>>:
> >
> >         Ciao sei Italiano?? se si mi daresti delle guide per mandare
> >         pacchetti tramite serial? io devo fare un programma in C# e devo
> >         madare dati al sensore...
> >
> >         If you are not italian :D
> >         Can you send me tutorial, guidelines or any documents to create
> >         and a packet for send it by serial?
> >         thanks
> >         Leonardo
> >
> >         Roberto Gioè ha scritto:
> >>         Hi all.
> >>         I would like create a packet to send to a micaz by a serial port.
> >>         The creation ot the packet must be done in a pc using an
> >>         application written in C.
> >>         I use TinyOs-2.x
> >>         I create the packet with the following statements:
> >>         ----------
> >>         char output_buffer[TOS_PACKET_LENGTH];    //TOS_PACKET_LENGTH=41
> >>
> >>         //output_buffer is initialized to zero
> >>         void create_packet() {
> >>
> >>           /* Setup packet header information */
> >>           output_buffer[0] = 0x7e;     //Frame
> >>           output_buffer[1] = 69;     //SERIAL_PROTO_PACKET_NOACK
> >>           output_buffer[2] = 0x00;     //Sequence number byte: SerialP
> >>           output_buffer[3] = 0xff;     //Destination Address
> >>           output_buffer[4] = 0xff;      //Destination Address
> >>           output_buffer[5] = 0x00;      //Source Address
> >>           output_buffer[6] = 0x00;      //Source Address
> >>           output_buffer[7] = 28;        //Payload length
> >>           output_buffer[8] = 0;         //Group ID
> >>           output_buffer[9] = 6;         //AMType
> >>
> >>           /* Payload */
> >>           output_buffer[10]='c';
> >>           output_buffer[11]='i';
> >>           output_buffer[12]='a';
> >>           output_buffer[13]='o';
> >>
> >>           /* CRC bytes and end frame */
> >>           output_buffer[TOS_PACKET_LENGTH-3] = 200;
> >>           output_buffer[TOS_PACKET_LENGTH-2] = 197;
> >>           output_buffer[TOS_PACKET_LENGTH-1] = 0x7e;
> >>         --------------
> >>          When I send this packet to the micaz mote no leds fire!
> >>         Is the packet format correct? I read more times the guidelines
> >>         to create a packet and I read the Serial.h file too.
> >>         Thanks for your answer
> >>
> >>         Roberto
> >>
> >>
> >>         ------------------------------------------------------------------------
> >>
> >>         _______________________________________________
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> >>
> >>
> >>         Tinyos-help at Millennium.Berkeley.EDU <mailto:Tinyos-help at Millennium.Berkeley.EDU>
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> >>
> >>          <https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help>
> >
> >
> >
> >
> >
> > --
> > Platform: Linux Fedora
> > TinyOS version: 2.x
> > Programmer: MIB510
> > Device(s): Micaz, Stargate
> >
> >
> > ------------------------------------------------------------------------
> >
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