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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-family:"Courier New"'>Hi all,<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>I am just starting with RTEMS and I am trying to interface the MCF5235 BCC board to our existing hardware. I am trying to set it to use *IRQ4, which should have fixed level/priority.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>When I execute the code noted below, the interrupts are disabled properly, the vector seems set and interrupts are re-enabled. But anytime I ground*IRQ4 (default high) line while my example program is running, I do not vector to the ISR. <o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>I fashioned my code using the clock/network/console code as guide, and those work great. <o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>Can anyone please give me a hint of what am I doing wrong?<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>------------------------------------- CODE -------------------------------------<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>#define TPU_INT_VECTOR (64+4)<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>#define TPU_IRQ_LEVEL 4<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>#define TPU_IRQ_PRIORITY 4<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>void InitTPUInterrupt(void);<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>static rtems_isr TPUInterruptHandler(rtems_vector_number vector);<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>#define TPUInterruptSetPriority() \<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'> do { \<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'> MCF5235_INTC0_ICR4 = \<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'> MCF5235_INTC_ICR_IL(TPU_IRQ_LEVEL) | \<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'> MCF5235_INTC_ICR_IP(TPU_IRQ_PRIORITY); \<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'> } while(0)<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>#define TPUInterruptSetHandler(_level,_vector,_old_handler) \<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'> do { \<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'> rtems_interrupt_disable(_level); \<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'> MCF5235_INTC0_IMRL &= ~(MCF5235_INTC0_IMRL_INT4 | \<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'> MCF5235_INTC0_IMRL_MASKALL); \<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'> handle_status = rtems_interrupt_catch(TPUInterruptHandler, \<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'> TPU_INT_VECTOR, &old_handler); \<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'> rtems_interrupt_enable(level); \<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'> } while(0)<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>void InitTPUInterrupt(void) {<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'> rtems_interrupt_level level;<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'> rtems_isr_entry old_handler;<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'> uint16 status;<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'> TPUInterruptSetPriority();<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'> TPUInterruptSetHandler(level, TPU_INT_VECTOR, old_handler);<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'> asm ("move.w %%sr ,%0;" : "=r"(status));<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>}<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>static rtems_isr<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>TPUInterruptHandler(rtems_vector_number vector)<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>{<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'> uint volatile chan = vector - TPU_INT_VECTOR;<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'> printf("\nGot interrupt number: %i", chan);<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'> rtems_interrupt_clear(MCF5235_INTC0_ICR4);<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>}<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>rtems_task Init(<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'> rtems_task_argument ignored<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>)<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>{<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'> ....<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'> InitTPUInterrupt();<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'> ...<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>}<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>------------------------------------- CODE -------------------------------------<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p></div></body></html>