I have a board with an 89S8252, configured with VNM at Address 2000-7FFF, 0000-1FFF is Flash. I have configured Mon51 with install 8 7f 0. I have Set Intvects and Cseg at 2800H. I get the connection with Mon51, it downloads my program and than gets into and endless loop somewhere. Hardware reset on the processor board results in a jump to 2800H, but there it stops instead of going to main. The go command proceeds then normally to main. Whats wrong?
You need to configure the debugger as explained under: http://www.keil.com/support/docs/3004.htm Reinhard
Many thanks, that solved the problem!