LwIP and .CPP file extension

Altera_Forum · ‎06-06-2006

Hi Everyone!

I got working LwIP using NIOSII and QUARTUSII 5.1 (I don't get working with QUARTUSII and NIOSII 6.0 http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/sad.gif ) like especified in this site.

Now I got another problem: when everithing works fine, I changed the file extension of lwip_web_server_0.c to lwip_web_server_0.cpp and I got a lot of erros, most of them related to typecast.

I would like to know if anyone get it working. All paths are correct and highlighting I say that everything works when using standard configuration.

There is someone?

Best regards,

Nosima

Altera_Forum · ‎06-06-2006

There is a list of some errors founded...

*** [Core_Final.elf] Error 1 Core_Final

obj/apps/base.o *../apps/echo.cpp:222: undefined reference to `tcp_accept(tcp_pcb*, signed char (*)(void*, tcp_pcb*, signed char))' In function `con_erro':

obj/apps/base.o *../apps/base.cpp:314: undefined reference to `tcp_sent(tcp_pcb*, signed char (*)(void*, tcp_pcb*, unsigned short))'

../apps/base.cpp:315: undefined reference to `tcp_recv(tcp_pcb*, signed char (*)(void*, tcp_pcb*, pbuf*, signed char))'

obj/apps/base.o *../apps/base.cpp:315: undefined reference to `tcp_recv(tcp_pcb*, signed char (*)(void*, tcp_pcb*, pbuf*, signed char))'

../apps/base.cpp:316: undefined reference to `mem_free(void*)'

obj/apps/base.o *../apps/base.cpp:316: undefined reference to `mem_free(void*)'

../apps/base.cpp:317: undefined reference to `tcp_close(tcp_pcb*)'

obj/apps/base.o *../apps/base.cpp:317: undefined reference to `tcp_close

Best Regards,

Nosima

Altera_Forum · ‎06-08-2006

Hi Nosima,

I dont knw about your first problem.Means why it is not running on Q6.0 and NIOS II 6.0.

But i can say something about your second error. First thing i would like to say that, how much u are familiar with C and C++. If any file having a extension like *.c then it compile like its rule and if any file having an extension *.cpp the ni will compile with its rule. Now there is somespecific method for accessing *.C file as a *.cpp and *.cpp file as *.c.

I hope u will get some light on this using my post..

i am also sending you one link:

get a closer look on this..

http://developers.sun.com/prodtech/cc/articles/mixing.html (http://developers.sun.com/prodtech/cc/articles/mixing.html)

Best Regards,

slsnios