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K-MD2 Datasheet(PDF) 14 Page - RFbeam Microwave GmbH

Part No. K-MD2
Description  Engineering Sample
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Maker  RFBEAM [RFbeam Microwave GmbH]
Homepage  https://www.rfbeam.ch/
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 14 page
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©
RFbeam Microwave GmbH | Schuppisstrasse 7 | CH-9016 St. Gallen | www.rfbeam.ch | K-MD2 Engineering Sample | data sheet
07/2018 – Revision A | Page 14/23
File System
Changing anything on the file system can result in an irreparable state where the radar has to
be reprogrammed by RFbeam Microwave GmbH.
File
Description
/etc/init.d/rcS
This file is always run, but will refer to
/mnt/rcS if it exists.
/mnt/rcS
(optional) This file is run instead of
/etc/init.d/rcS
/opt/init.sh
This is the default start-up script that starts the sensor server
/mnt/init.sh
(optional) This file is run instead of
/opt/init.sh
/opt/sensor_server
This is the executable. It reads the configuration file(s).
/opt/sensor_server.conf
This is the default configuration file for the sensor server.
/mnt/sensor_server.conf
This is the user configuration file. Any entries override those in the default configuration file.
/opt/sensor_server.log
This is the default output log file.
/opt/roms_*
Files in this folder are loaded on to the processor.
/opt/versions
This file shows the software and firmware versions that were used to create the boot image.
/etc/fstab
This file defines the mount points, including
/mnt
/tmp
This is a ram disk, used for updating the firmware.
Table 5: Radar file system
Configuration
The sensor server configuration is loaded from files
containing key/value pairs. The key and value must
be separated by an equals sign:
key = value
The default configuration file
/opt/sensor_ser-
ver.conf is always loaded. If the user configuration
file
/mnt/sensor_server.conf exists, it is loaded
as second and any values overwrite the value loaded
from the default configuration file.
The following table describes the system parameter
which can be changed by the user in the
/mnt/sen-
sor_server.conf.
Key
Description
log_level_file
The level for messages in the log file.
log_level_stdout
The level for messages displayed on the terminal.
log_filename
The name and location of the log file.
datasink_timeout
Maximum time to allow for receiving commands.
datasink_filter
The types of message sent by the sensor server.
datasink_port
The network TCP port.
serial_device
The serial interface.
serial_baud
The serial interface baud rate.
serial_max_length
The maximum length of messages sent via the serial interface.
chirp_setup_time
Clocks from PLL trigger to ADC sample.
chirp_hold_time
Clocks from ADC sample to PLL trigger.
chirp_num_sweeps
Number of sweeps in the FMCW modulation scheme.
chirp_num_repeats
Number of times the sweeps are repeated.
chirp_num_repeats_ignored
Number of repeats where the ADC samples are not stored.
chirp_num_steps
Number of steps in each FMCW sweep.
chirp_num_steps_ignored
Number of steps in the first sweep where the ADC sample is not stored.
chirp_initial_delay
Number of clocks between the first PLL trigger and the first ADC sample.
chirp_start
The initial frequency of the FMCW sweep.
chirp_bandwidth
The bandwidth of the FMCW sweep.
radar_rx_gain
The receiver VGA gain in dB
Table 6: System parameter
System parameter which aren’t described in this table are system dependent and must not be changed.
Changing of these parameter can result in an irreparable state where the radar has to be reprogrammed
by RFbeam Microwave GmbH.




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