Bob, > I find, that the jump bne 10f is always executed and subsequently, the > correct handler is fetched from the table hal_interrupt_handlers. But hellas > - when I get my "spurious interrupt" I find that the interrupt source is > correct (10 for pwm), the datapointer however is zero und all entries in the > hal_interrupt_handlers table are filled with the address of the > hal_default_isr.
This sounds like it is working correctly. An interrupt occurred, it found the handler and called it. > I would expect the table hal_interrupt_handlers to be initialized during > system startup. But obviously, this assumption is wrong. Which part of eCOS > (dynamically) modifies this table and why?? > Thanks for help and advice....Bob hal_interrupt_handers is initialized at startup with hal_default_isr (which does nothing). A driver using interrupts would create an ISR and DSR (if required) and call cyg_drv_interrupt_create(). The handle returned by cyg_drv_interrupt_create() would then be used in the call to cyg_drv_interrupt_attach() to attach the interrupt to the hardware vector which places it in the hal_interrupt_handers table. -- Mike -- Mike -- Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
