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No. 43 about EZL-80C UART transmission qusetion 2005-09-26

I have a system including 8051(philp p89lpc922fn) EZL-80C,WLAN card.
Now i have some problem.I connect
(8051's TXD to ZEL80C's RXD and 8051's RXD to ZEL80C's TXD),when i input "AT+PRIP=192.192.70.23",but the ZEL80C responsed "AT+PRIP=192.192.70.23
OK".
Unfortunately the ezl-80c user's manual only put down in writing "OK",so i don't know why do they have this situation?
Sometimes they have another situation.I use the super terminal to check the 8051's TXD output which is "AT+PRIP=192.192.70.23",but it often lost some words,example:"AT+PIP=192.12.70.23" or "A+PRIP=92.192.0.23",so i don't overcome this situation.Could you tell me how to do overcome these problems.

Writer Jason Company