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Marlo Flores wrote: > > I am using CCS v 1.21 in writing programs for C5402. I > am using intr.h to setup the interrupts. In one .c > file i define an init_interrupt() function in the > following way: > > #include <dma54xx.h> > #include <intr.h> > > void init_interrupt(int trap_num, int isr, int > intr_mask_bit) > { > INTR_GLOBAL_DISABLE; > INTR_HOOK(trap_num,isr); > INTR_ENABLE(intr_mask_bit); > INTR_GLOBAL_ENABLE; > } > > when I built my project the folllowing mysterious > message comes out: > > undefined first referenced > symbol in file > --------- ---------------- > _isr_jump_table init_peripherals.obj > >> symbol referencing errors - Dma.out not built > Build Complete, > 1 Errors, 1 Warnings. Hi Marlo, At a guess, one or more of INTR_GLOBAL_DISABLE, INTR_HOOK, INTR_ENABLE or INTR_GLOBAL_ENABLE are not function calls, but macros which reference something called "isr_jump_table". You're getting the "undefined symbol" at link time because none of the objects you're linking together are providing isr_jump_table. But somehow you need to get one. I think you should read up on whether there's some TI-provided object file you also need to link in to get isr_jump_table, or whether you need to define isr_jump_table in your own code somewhere. Hope this helps. Regards, Mitch. |
Re: symbol referencing error
Started by ●September 13, 2002
