Hi I am using STR9 I have to interface it with clrc632 chip that is 14443 based RFID chip previously I have written the driver for the same using linux 2.6 kernel there was an approach in which we devide the lenthy interrupt routene to TOP half and Bottom half now I have to execute 5 tasks in the RTX I want to make the scheduling like that of linux my problem is how to perform lenthy process in interrupt handler is there need of top half and bottom half in kiel?