OBM一位微机(以下简称OBM机)从整机到各种功能板品种较全,近几年得到了较多应用。该机是用专用键盘板键入和调试程字的,键盘板通过扁平电缆插头和主控制相连(图1)。在使用过程中,我们感到该板功能较弱。这主要表现在:1.程序存贮器地址只能下推,如想检查和修改上一单元的内容,则只能持续按下OSC键,以大循环方式转回,使用不便。2.无EPROM固化功能,调试通过的程序还需借助其它装置写入EPROM。3.如果在检查程序时,发现漏键或多键入字节,或在程序调试的 OBM a microcomputer (hereinafter referred to as OBM machine) from the whole machine to a variety of more full-featured board, in recent years has been more applications. The machine is a special keyboard type and debug program, the keyboard through the flat cable connector and the main control connected (Figure 1). During use, we feel the board is weak. This is mainly manifested in: 1. The program memory address can only be pushed down. If you want to check and modify the contents of the previous cell, you can only press the OSC key continuously to switch back to the macro mode, which is inconvenient to use. 2. No EPROM curing function, debugging through the program also need to use other devices to write EPROM. 3. If you check the program, you find that you are missing a key or more by typing a byte, or during program debugging