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一、硬件线路及原理用TP-801单板机开发MCS-51系列单片机装置的硬件图如图1所示。随机存贮器RAM_1和RAM_2分别与TP-801单板机和8031单片机相连。当图1中的开关K放在B端时,单板机工作。RAM_1和RAM_2作为单板机的外部存贮器,它们分别由MCS6、MCS7选通,其地址为3000H～3.FFFH(共4K字节)。通过单板机的键盘,可以方便地将要开发的单片机的应用程序键入存贮器RAM_1和RAM_2,并可以随时修改。当开关K置到C端时,单板机断电,8031单片机
First, the hardware circuit and principle With TP-801 single-board machine development MCS-51 series microcontroller hardware diagram shown in Figure 1. RAM_1 and RAM_2 are respectively connected with the TP-801 single-board computer and the 8031 single-chip microcomputer. When the switch K in Figure 1 is placed on the B side, the SBC works. RAM_1 and RAM_2 are used as the external memory of the single-board computer. They are respectively gated by MCS6 and MCS7 and their addresses are 3000H ~ 3.FFFH (4K bytes in total). Through the single-board keyboard, you can easily be the development of the microcontroller application into the memory RAM_1 and RAM_2, and can be modified at any time. When the switch K set to C-side, the single-board power, 8031 microcontroller