MOGlabs ARF021, Руководство пользователя

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12
Chapter 3. Communications
> FREQ,1
< 80.00000009 MHz (0x147AE148)
> FREQ,3
< ERR: Invalid channel, 3
In the above example, the frequency query provides a value first
in MHz as well as the internal DDS setting (called the “frequency
tuning word”) as hexadecimal in brackets.
It is strongly recommended that all software should wait for this
response and check whether it indicates an error before continuing.
The
python
and
LabVIEW
bindings provided by MOGL abs take care
of buffering and error checking automatically.
The “
mogcmd
” application, which is available from the MOGL abs
website as a standalone application or as part of the
mogrf
package,
provides a convenient interface for sending commands and receiving
responses (Figure 3.1).
Figure 3.1:
The
mogcmd
application, showing successful and unsuccessful
commands and queries.