I'm using the MCB251 board with the Intel 80C251SB CPU. I'm trying to program an EPROM using the hex file that uvision creates. My project tests fine using the Monitor Eprom with debug but I can't get it to do anything with a user eprom that I programmed. I'm trying to get blinky to work from an Eprom but after loading the code and plugging in the EProm All the LEDs are on. Any help would be greatly appreciated.