How to definition"SYSTEM_BUS_WIDTH"?

[Altera_Forum]

Hi,everybody: 

I'm write a custom logic on DE2 board.  Within IO header file for the NIOS toolchain there is a definition 'SYSTEM_BUS_WIDTH'.   Can anybody tell me where this is defined, I have done a search for the string and found nothing so far.  Thank you for your help.  Regards  NiosQ

[Altera_Forum]

PS: The message as following: 

 NiosQ@localhost ~/NiosQ_program $ nios2-linux-uclibc-gcc hello_altera_avalon_pwm.c  -o hello_altera_avalon_pwm -elf2flt hello_altera_avalon_pwm.c: In function `main': hello_altera_avalon_pwm.c:42: error: `SYSTEM_BUS_WIDTH' undeclared (first use in  this function) hello_altera_avalon_pwm.c:42: error: (Each undeclared identifier is reported onl y once hello_altera_avalon_pwm.c:42: error: for each function it appears in.) hello_altera_avalon_pwm.c: In function `print_error': hello_altera_avalon_pwm.c:86: error: `SYSTEM_BUS_WIDTH' undeclared (first use in  this function) NiosQ@localhost ~/NiosQ_program $

[Altera_Forum]

--- Quote Start ---  originally posted by niosq@Mar 12 2007, 06:55 AM ps: the message as following:  niosq@localhost ~/niosq_program $ nios2-linux-uclibc-gcc hello_altera_avalon_pwm.c  -o hello_altera_avalon_pwm -elf2flt hello_altera_avalon_pwm.c: in function `main&#39;: hello_altera_avalon_pwm.c:42: error: `system_bus_width&#39; undeclared (first use in  this function) hello_altera_avalon_pwm.c:42: error: (each undeclared identifier is reported onl y once hello_altera_avalon_pwm.c:42: error: for each function it appears in.) hello_altera_avalon_pwm.c: in function `print_error&#39;: hello_altera_avalon_pwm.c:86: error: `system_bus_width&#39; undeclared (first use in  this function) niosq@localhost ~/niosq_program $ <div align='right'><{post_snapback}> (index.php?act=findpost&pid=22218)  --- quote end ---    --- Quote End ---    It seems that it is a design that uses SOPC Builder (SYSTEM_BUS_WIDTH is a parameter of the SOPC system).   Usually a software project for a SOPC system needs a system description header file named "system.h", which will be automatically generated by Nios II IDE from the system description file (ptf file). It seems that the "system.h" is not found.  Could you please post the source code for your project and give more information? Thanks.

[Altera_Forum]

I had a similar error ("could not resolve system_bus_width") with the newer NIOS II SBT.  

 the solution i found: Right Click on the BSP Folder and Select Index-->Rebuild  Right Click on the Project Folder and Select Index-->Rebuild

[Altera_Forum]

I am also searching fro its solution and thanks for providing me this solution.