Hi all: I want to debug a user-level application with ejtag,during app running i list cpu register with ejtag,system report "Bus error",Who have debuged user app with ejtag? Best Regards. -- Baojian Zheng Institute of Computing Technology Chinese Academy of Sciences P.O. Box 2704-25 Beijing, China,100080 Tel: 86-10-62565533 ex. 9311 E-mail: bjzheng@xxxxxxxxx