good, you caught that =/== thing...
From looking at the SimpleCmdMsg.h file, I think what you want is:
cmd->args.rl_args.destaddr
since rl_args is a struct itself.
Also on the question you sent to me directly:
From the Cygwin command, if I type java.net.tools.BcastInject led_on 1
> (1 is mote address of node 1), I can see only led on the mote 1 is on,
> mote 2 is not.
I am quite confused here, because I left SImpleCmd unchanged, so how
> the mote 2 know that this broadcasted packet does not belong to it?
> Because, I think, althought the packet is sent from TOSBase with
> address of mote 1, mote 2 still can receive it (radio signal).
I haven't used BcastInject. It looks like all messages are BCAST to
every mote, but the mote app itself looks at the rl_args.destaddr and
decides if is is going to execute the command, turning on the LED in
this case. You could change SimpleCmd to flash an led every time it
gets a message of any kind, just to see that things are working...
MS
Hieu Tran wrote:
Sorry, I think in the command if (cmd->args.rl_args=TOS_LOCAL_ADDRESS)
it must be if (cmd->args.rl_args==TOS_LOCAL_ADDRESS).
However, when I change this, the Cygwin display "invalid operands to
binary ==". How can I solve this problem? Thanks alot.
Hi all!
I am a new to TinyOS. I am doing a simulation with one mote program with
TOSBase. I use BcastIject to send radio packet. In BcastInject, I modify
it with destination address is received from command. After that, I put
this address in the read_log_arg variable of SimpleCmd. Here are some
structes in SimpleCmd:
typedef struct {
uint16_t destaddr;
} read_log_args;
// SimpleCmd message structure
typedef struct SimpleCmdMsg {
int8_t seqno;
int8_t action;
uint16_t source;
uint8_t hop_count;
union {
start_sense_args ss_args;
read_log_args rl_args; (I put destination address here)
uint8_t untyped_args[0];
} args;
} SimpleCmdMsg;
The packet is sent with broadcast address. I want to programming one
node as the relay node. It receives radio packet, make comparision of
its TOS_LOCAL_ADDRESS with destination address (encapsulated in
SimpleCmd). If these addresses are equal, the node keep the packet,
other it forward the packet.
In the program for the relay mote, I declare cmd as a SimpleCmd
structure pointer that point to packet
struct SimpleCmdMsg * cmd = (struct SimpleCmdMsg *) msg->data;
and I make comparision with command
if (cmd->args.rl_args=TOS_LOCAL_ADDRESS)
I run the make mica2 to compile this program. However, the Cygwin
display "Incompatible types in
assignment" (cmd->args.rl_args=TOS_LOCAL_ADDRESS)
I can not figure it out what is wrong with this. Can you give me some
advice?
Many thanks!
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