[Contiki-developers] error after changing mac driver

[Tao Zheng]

Hey, all,

 

In example ‘udp-ipv6’, I run it in the MSPsim Tmote Sky simulator.

Under the default configuration of MAC and RDC driver, make process is successful.

 

However, after I change mac driver from the default ‘csma_driver’ to ‘tdma_mac_driver’ as following details, the error happenes.

in “../platform/sky/contiki-conf.h”:

from

“

#ifndef NETSTACK_CONF_MAC

#define NETSTACK_CONF_MAC     csma_driver

#endif /* NETSTACK_CONF_MAC */

”

to

“

#ifndef NETSTACK_CONF_MAC

#define NETSTACK_CONF_MAC       tdma_mac_driver

#endif /* NETSTACK_CONF_MAC */

”

After #make,

there are some errors as following,

“

/home/user/contiki/examples/udp-ipv6/../../platform/sky/./contiki-sky-main.c:300: undefined reference to `tdma_mac_driver'

/home/user/contiki/examples/udp-ipv6/../../platform/sky/./contiki-sky-main.c:303: undefined reference to `tdma_mac_driver'

contiki-sky.a(contikimac.o): In function `input_packet':

/home/user/contiki/examples/udp-ipv6/../../core/net/mac/contikimac.c:847: undefined reference to `tdma_mac_driver'

contiki-sky.a(sicslowpan.o): In function `sicslowpan_init':

/home/user/contiki/examples/udp-ipv6/../../core/net/sicslowpan.c:1703: undefined reference to `tdma_mac_driver'

contiki-sky.a(sicslowpan.o): In function `send_packet':

/home/user/contiki/examples/udp-ipv6/../../core/net/sicslowpan.c:1282: undefined reference to `tdma_mac_driver'

collect2: ld returned 1 exit status

make: *** [udp-server.sky] Error 1

rm udp-server.co

”

After every changing, I have done #make clear.

But the mistake still happenes.

 

And surprising, for any changing on MAC driver, all appear the same mistakes.

However, for any changing on RDC driver, all appear compiled successful.

 

I dont know why.

 

Thanks all.

 

Tao Zheng

 

[La Chi Anh]

Hi,

You should add tdma_mac.c in core/net/mac/Makefile.mac before compiling.
Cheers

Chi-Anh

2011/12/2 Tao Zheng <tzhe...@gmail.com>:

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[Tao Zheng]

Hi, Chi-anh,

Thanks for your reply.
I have added tdma_mac.c in /core/net/mac/Makefile.mac, and then, I compile.
But there is still another error.

../../core/net/mac/tdma_mac.c: In function ‘tdma_mac_init’:
../../core/net/mac/tdma_mac.c:242: error: ‘const struct radio_driver’ has no
member named ‘set_receive_function’
../../core/net/mac/tdma_mac.c: At top level:
../../core/net/mac/tdma_mac.c:250: warning: initialization from incompatible
pointer type
../../core/net/mac/tdma_mac.c:251: warning: initialization from incompatible
pointer type
../../core/net/mac/tdma_mac.c:252: warning: initialization from incompatible
pointer type
../../core/net/mac/tdma_mac.c:253: warning: initialization from incompatible
pointer type
../../core/net/mac/tdma_mac.c:254: warning: initialization from incompatible
pointer type
../../core/net/mac/tdma_mac.c:255: warning: initialization from incompatible
pointer type
make: *** [obj_sky/tdma_mac.o] Error 1

Then, I trace to tdma_mac.c:242, found that, there is no any defination of
function 'set_receive_function' in struct of 'const struct mac_driver
tdma_mac_driver'.

What should I do in next?

Thanks all.

Tao Zheng

[Tao Zheng]

[David Kopf]

tdma was apparently never updated to use the contiki 2.5 NETSTACK_RADIO driver structure. Don't know how that should be fixed. It
seems be that tdma is really an RDC driver that should be called by nullmac.

[Tao Zheng]

And you means that 'nullmac.c' contains 'tdma' machenism as the RDC driver?
or what is the relationship between them?

Thanks for all.

Zheng Tao

[David Kopf]

That is a source of confusion to me as well. When RDC was split from MAC the
naming was kept the same, e.g. contikimac is now an RDC.

Have you seen http://sourceforge.net/mailarchive/message.php?msg_id=28451182

[tong1...@gmail.com]

Dear Tao Zheng,

I just found your email from the internet. May I ask you questions about contiki mac and rdc driver programming?

Btw, is tdma_mac_driver written by yourself? Recently I am also wanting to realize our own mac protocol based on contiki os. May I have a contact with you?

Thanks very much!

Best Regards,

Fei Tong

Computer Science, University of Victoria, Canada

homepage: http://pan.uvic.ca/~tongfei/ 

在 2011年12月3日星期六UTC+8上午12时02分55秒，Tao Zheng写道：