Epson PC AX Technical Manual page 254

DIAGlU\MS AND REFERENCE MATERIALS
HEV.A
When the check is started, the following message appears:
at various baud rates
SERIAL PORT CHECK
RS232C echo back check
Current baud rate is xxxx
Current test data is yy
+-----------------------------------------------------------------+
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+-----------------------------------------------------------------+
(xxxx represents the baud rate used for the current check, and yy
represents the test data.)
The program displays an error message if either the TX Shift
Register Empty status is not assumed during data transmission or
the Data Ready status is not assumed during data reception.
+-----------------------------------------------------------------+
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: Error code
=
1102 :
: TIME OUT ERROR :
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+-----------------------------------------------------------------+
Thesent data and received data is compared,and theprogram
displays an error message if they do not match.
xx
yy
1103 Error code
=
VERIFY ERROR
Sent da ta
Redeived data
+-----------------------------------------------------------------+
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+-----------------------------------------------------------------+
(xx represents the sent data and yy representes the received data.)
3) Data Transfer Check using Various Data Lengths, Stop Bits, and
Parity
The baud rate is fixed to 9600 bps. The scope of the check
data varies according to the data length.
+-------------------+-------------------+
: data length : check data :
+-------------------+-------------------+
: 8 bits : 00 - FFh :
: 7 bits : 00 - 7Fh :
: 6 bits : 00 - 3Fh :
: 5 bits : 00 - IFh :
+-------------------+-------------------+
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