A and B two 80C51 microcontroller serial communication, a switch control through the high-low P1 port and send the data to send over another to receive the data, through the P1 port with LED display, high light, low extinguished.

两机通信电科0712蔺涛\receive.asm
....................\RECEIVE.HEX
....................\send.asm
....................\SEND.HEX
....................\TX.DSN
两机通信电科0712蔺涛

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