Product Manual

12
SOFTWARE FUNCTIONALITY
OVERVIEW
At power-on the 317 radar executes a Boot-loader program which communicates at a fixed Baud rate of
115200, no parity, 8 data bits and 1 stop bit over the RS422 interface. The Boot-loader provides facilities for
erasing the Flash and updating the firmware.
The 317 radar uses a real time operating system and is continuously performing a number of tasks
simultaneously using a time multiplexing method. The Boot-loader and the main data capture processing task
flow diagram are shown below.
YES
YES
NO
NO
Capture data
Perform FFTs
Detect possible
targets in FFT
data
Find range of
targets
Perform
accurate speed
measurement
Output target
data to 422
interface
A
Initiate RS422
communications
at 115200.N.8.1
Output bootloader
version to 422
interface
Board
initialisation
set configured/
default baud rate
460800.0.8.1
Flash
LED 5 times
Erase /
Re-program
Flash
A
Update
firmware?
Initialisation
failed
Start
bootloader