*** error 65: access violation at C:0x006B : no 'execute/read' permission It's obvious that 0x006B is the vector of my interrupt,that can nor be executed... Due to restrictions of my developing board, progrm code and data are only aloud in the 0x8000-0xBFFF area.... I've set: interrupt vectors at address:0x8000 externel code memory at address:0x8100 and external data at address:0xA000 Do I need to alter the initialization A51 code and put a long jump in there,and if yes how do i do that? Any suggestions? Giannis
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