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, 04 Dec 2008 15:30:39 -0800 http://backend.userland.com/rss092 Hi everyone, I'm new on RTX51-full. When using RTX51-full, it need huge of xdata and code. Q1: I'm using the mcu(c52) which is no xdata available. Is <noauthor@nospam.com> http://www.8051projects.net/forum-t10397.html Hi,Q1: use "small memory model" for my project mean i have to use idata or data. Normaly AT89C52 only use idata and data. This C52 doesn't support xda Help<tangbc05@nospam.com> http://www.8051projects.net/forum-t10397.html A1: use small memory model for your project.A2: try not to use absolute addressing and accessing of memory when using RTX. instead use xdata keyword t Ajay<contact@nospam.com> http://www.8051projects.net/forum-t10397.html It would be better if you use RTX51 Tiny, here are the specifications of rtx tiny:Maximum Number of Defined Tasks: 16 Maximum Number of Active Tasks: Ajay<contact@nospam.com> http://www.8051projects.net/forum-t10397.html Hi fren..Thank for ur advice...i wil try to use tiny.. Help<tangbc05@nospam.com> http://www.8051projects.net/forum-t10397.html