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NE-4100 Series User’s Manual
Serial Command Mode
9-15
In the example above, the status is
Data Mode
, which indicates normal data transmission. For
serial command mode, the status would be
Command Mode
.
You may also verify if the module is in serial command mode by attaching a serial console to the
serial port (P0). If the module is in serial command mode, it will respond with a sequence of
characters after receiving the serial command end character CR, as shown below.
Command sent by serial device
Module’s reply
CR
“<E”
+ CR
(0x3C, 0x45, 0x0D)
CR + LF
(0x0D, 0x0A)
“<E”
+ CR
(0x3C, 0x45, 0x0D)
Error command
“<3”
+ CR
( 0x3C, 0x33, 0x0D)
Therefore, you can determine if a module is in serial command mode by sending
CR
to the module
seeing if the module replies with “<E” +
CR
.
Serial Command Examples
For the following examples, the module should be installed onto the evaluation board, and the
evaluation board’s serial port (P0) should be connected to a COM port on your PC.
ATTENTION
When using a terminal emulator program such as PComm Terminal, make sure that the Enter
key is configured to send
CR
only, rather than
CR
+
LF
.
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