I worked with memtest example of FX2 development board. I'm sure that keil monitor has been downloaded to 0xC000 (at UART interrupt vector C:0x3B there is a jump to 0xCA8D). My code and data resides between 0x80 and 0x2000 and this region as well as 0xC000-0xCFFF are excluded from testing. Test works fine if I don't touche 0x9000-0x9FFF region. If it is included in the test then it hangs after 7th round or it hangs after first breakpoint if breakpoint is used. I have no idea what's going on with this test. Any hints??? Regards Wojtek