How to definition"SYSTEM_BUS_WIDTH"?

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

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 $

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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':

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 $

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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.