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 <[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>>:
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 <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>>:
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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--
Platform: Linux Fedora
TinyOS version: 2.x
Programmer: MIB510
Device(s): Micaz, Stargate
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