[Tinyos-help] odd problem on message_t

[BAI LI]

Hi,

Yes. It worked now. Thanks. I forgot the change the cc2420.h file. BUt this
way is much better. Thanks.

Regards,
Bai

On Wed, Mar 4, 2009 at 6:13 PM, Ittipong Khemapech <ik.tinyos at googlemail.com
> wrote:

> Hi,
>
> I *didn't* look at your code and I'm not sure about the #define
> TOSH_DATA_LENGTH to 35 in message.h.
>
> Try add:
>
> CFLAGS += -DTOSH_DATA_LENGTH=35
>
> in your Makefile.
>
> Please let me know how it goes.
>
> Ittipong
>
> 2009/3/4 BAI LI <libai0915 at gmail.com>
>
>>   Hi All,
>>
>> I am currenting doing a very simple network test. I designed the message
>> structure in ****.h file and some sending functions in the following.
>>
>> typedef nx_struct HashMsg {
>>   nx_uint16_t nodeid;
>>   nx_uint8_t flag;
>>   nx_uint32_t payload_MD1;
>>   nx_uint32_t payload_MD2;
>>   nx_uint64_t payload_M;
>>   nx_uint64_t payload_R;
>>   nx_uint16_t payload_ID;
>> } HashMsg;
>>
>>
>> Part of the sending code is as folows:
>>
>>
>> event void Timer0.fired() {
>>
>>  uint16_t destinationMote=0x0002;
>>     if (!busy) {
>>       HashMsg* hmpkt =
>>  (HashMsg*)(call Packet.getPayload(&pkt, sizeof(HashMsg)));
>>       if (hmpkt == NULL) {
>>  return;
>>       }
>>       hmpkt->flag=1;
>>       hmpkt->nodeid = TOS_NODE_ID;
>>       hmpkt->payload_MD1 = 0x12345678;
>>    hmpkt->payload_MD2 = 0x90ABCDEF;    // disable this line, it will work
>>    hmpkt->payload_M=0x0000000000000000;
>>    hmpkt->payload_R=0x0000000000000000;
>>    hmpkt->payload_ID=0x0000000000000000;
>>       if (call AMSend.send(destinationMote,
>>           &pkt, sizeof(HashMsg)) == SUCCESS) {
>>   call Leds.led0On();
>>         busy = TRUE;
>>       }
>>     }
>>
>>   }
>>
>> When the program loads the data to send. The program is dead with one more
>> line "hmpkt->payload_MD2 = 0x90ABCDEF";. I don't know what the problem is as
>> I have changed the #define TOSH_DATA_LENGTH to 35 in message.h which is
>> enough to handle the data. However it didn't work still. I suspect that it
>> could be message size problem. But I can't work it out. THanks.
>>
>> Regards,
>> Bai
>>
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>>
>
>
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