Sperry Marine NAVIKNOT 600 SD, Operation, Installation And Service Manual

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NAVIKNOT 600 SD 056353/J
Updating the EU Software with a Flashboard 9-11
9.3 Updating the EU Software with a Flashboard
The NAVIKNOT electronics unit keeps two separate copies of the system
software, one in an onboard flash memory and the other on the
exchangeable software flashboard 20793.
The system always boots up from the onboard memory. Should, at
power-up, a different software version be found on the flashboard than
is currently stored onboard, the software from the flashboard is auto-
matically copied to the onboard memory and the system is restarted.
This allows both to upgrade to newer and to downgrade to previous
releases by simply exchanging the flashboard.
Important bugfix releases or software improvements will be announced
to service representatives and customers via Sperry Marine Hamburg
service bulletins.
Following a new software release, existing stocks of flashboard 20793
will be updated, so that customers ordering a flashboard will always
receive a board containing the most current software release, unless a
different release is explicitly requested.
Exchanging the Flashboard
1. Power down the NAVIKNOT 600 SD system.
2. Get access to the electronics unit and remove the cover.
3. Locate the old flashboard in its socket (J7) on the PCB.
CAUTION
Risk of loss of parameter settings through software update
It cannot be guaranteed that parameters settings in the User and Setup
menus and the currently active manual settings are left intact during the
software download.
Before exchanging the flashboard or performing a software update via
SUSI, record all settings to be able to re-enter them manually, if required.
Note
For recording all parameter settings see “Setup and Configuration
Tables” in the appendix of this manual.
4. Carefully remove the plastic pin
which secures the flashboard to
the PCB.
5. Pull the old flashboard out of
the socket, making sure to touch
it at the edges only.