To achieve master slave multi machine communication, a host, three slave computers and three switches are used to configure the communication address. The matrix keyboard is for sending data, and the corresponding number is displayed from the opportunity matching at the address.

Filename	Size	Update
dj.DSN	135373	2007-11-05
dj.pdsprj	21453	2018-02-11
dj.PWI	1982	2017-08-09
PMPDataRPro.hex	924	2007-11-05
PMPDataTPro.hex	1090	2007-11-05

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