http://www.8051projects.net/ Learn to make simple microcontroller projects, pic, 8051, avr and arm projects. download 8051 projects, tutorials, libraries, sample codes. join the microcontroller discussion forum and ask doubts regarding electronics. the best source for 8051 over internet. Thu, 08 Jan 2009 22:46:21 -0800 http://backend.userland.com/rss092 HI ALL, I work with MCU 1 st time and i have a problem in programming UART transmisionThat my programe is to send 0xff and ON indication LED then OFF <noauthor@nospam.com> http://www.8051projects.net/forum-t9408.html I think you cannot use this instructionLPM R20,Zcoz you are using 8515 so only LPM is allowed without operands. Ajay<contact@nospam.com> http://www.8051projects.net/forum-t9408.html great thx ........... AJAY ENG\ AHMED<eng_ahmed4444@nospam.com> http://www.8051projects.net/forum-t9408.html