I have got CCS C Compiler and I have some problems about printing Unsigned Long Integer Numbers if I write unsigned long int any_long_variable; any_long_variable =256; printf(" %lu ",any_long_variable); In screen (via RS232) appears only 0x20 chars(lots of space) Are there any experience about this problem ? Thanks For All Answers Cumhur Kizilari ICQ:4910324 _________________________________________________________ DO YOU YAHOO!? Get your free @yahoo.com address at http://mail.yahoo.com