| ??? 06/18/05 04:31 Read: times |
#95233 - One 89c51 Master and 7 Slaves |
Dear ALL
I want to help form your sit in following scenario. I have 8 89c51 one is master and other 7 are slave. Mater can communicate with PC through serial port and Master can be communicating with other 7 89c51.Basically I am using 7 slave for expansion of IO pins.I an not understanding that when Master communication with PC how is communication with slave because Tx and Rx is connected with MAX-232. Communication sanarios is some stream coming from PC Master Read the Stream and transmit a protocol to the slaves and slaves read the stream and targated slaves pick the information and send byte to his port . Slaves port are connectto the relay. My question is when Master is communicating with PC how is communication with slaves.Because 89c51 have only one URAT. I have to use 89c51 not other Thanks. |
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