请教:AT91SAM7得问题

gohey

刚刚通过IAR编译中断程序时,出错了.
错误信息如下:
interrupt_timer.c
Warning[Ta023]: Call to a non __ramfunc function (AT91F_PIO_GetInput) from within a __ramfunc function E:\IAR PROJECTS2\interrupt_timer.c 88
Warning[Ta023]: Call to a non __ramfunc function (AT91F_PIO_ClearOutput) from within a __ramfunc function E:\IAR PROJECTS2\interrupt_timer.c 90
Warning[Ta023]: Call to a non __ramfunc function (AT91F_PIO_SetOutput) from within a __ramfunc function E:\IAR PROJECTS2\interrupt_timer.c 94
Warning[Ta023]: Call to a non __ramfunc function (AT91F_PIO_GetInput) from within a __ramfunc function E:\IAR PROJECTS2\interrupt_timer.c 114
Warning[Ta023]: Call to a non __ramfunc function (AT91F_PIO_ClearOutput) from within a __ramfunc function E:\IAR PROJECTS2\interrupt_timer.c 116
Warning[Ta023]: Call to a non __ramfunc function (AT91F_PIO_SetOutput) from within a __ramfunc function E:\IAR PROJECTS2\interrupt_timer.c 120

是什么原因造成的呢?如何更正?