Re: [Paparazzi-devel] Configuring Xbee in API mode

[Martin Mueller]

Hi Steffen,

> I just worked thru the Xbee configuration in API mode.
> http://paparazzi.enac.fr/wiki/Subsystem/telemetry
>
> The XBEE_INIT has some strange commands which I couldn't find in the
> Xbee spec.
>
> <define name="XBEE_INIT" value="\"ATPL2\rATRN1\rATTT80\r\ATBD6\rATWR\r\""/>

not sure that this init string is needed. At least we do not use it, we 
only program the modems serial speeds once and store the config 
permanently (with the Maxstream/Digi config software). The hard-coded AT 
commands in the C code are sufficient for turning on API mode.

> ATPL2 is output power
> ATBD6 sets baudrate to 57600
> ATWR writes the settings
> but
> ATRN1
> ATTT80
> are not part of the Xbee AT command list.
> http://ftp1.digi.com/support/documentation/90000976_K.pdf
> (Chapter 10. XBee Command Reference Tables, page 129)
>
> Any idea what's behind this?

The XBP09-XC009 manual says that RN sets the number of retries and TT 
sets the number of bytes after which a random delay is inserted.

Martin