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I open the project, i start the simulator, but when i click on start/stop debugger, a message follow: *** error 65: access violation: addr=0x00000000 how can i correct start this simple little program? the correct out should be : HELLO, but i can't see anything, only the error message thanks!
You need to read the uVision Getting Started Guide - you can find it in the 'Books' window, or on the 'Help' menu. You should work through the example projects in it - they guide you through the whole process of creating a project, building it, running it in the simulator, and debugging it in the target. This will give you a proper introduction to the tools and how to use them. By working through the manual - rather than just jumping in - you will ensure that you don't miss some small but vital step and end up with an annoying error message...