[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

hwtestserial -d /dev/ttyS0 -loopback 1



		Hi!

 after read this lines
 
   -loopback times   Do a serial loopback test.
         Plug scheme: TxD->RxD, RTS->CTS,DSR, DTR->CD,RI
 
   we make plug:
   
    1
    . . . . . .
     . . . . .
  
  1 - 4 - 9  cd-dtr-ri
  2 - 3      rxd-txd
  6 - 7 - 8  dsr-rts-cts
  

  [root@axis /]68# hwtestserial -d /dev/ttyS0 -loopback 1
  test failed: CD and RI high when expected to be low (RTS high, DTR low)
  
  what wrong?
  
-- 
		Bor.