Operation Manual

Simrad PI54
298
850-165186 / Rev.B
Messages
The MMI upload program will keep you posted on the process
by means of messages.
Safety measures
The following safety measures have been implemented to
minimize the risk of errors during the upload process.
• When the software is uploaded from the computer to the
PI54 cabinet, the data are stored in a scratch pad (buffer).
The data are not transferred to the Flash PROM (the
microprocessor’s storage area) until all software data have
been transferred correctly to the scratch pad.
• If the upload cable is unplugged, or you loose power on the
computer and/or the PI54 cabinet during the upload process,
you can simply abort the upload and restart it.
• It is not possible to switch off the PI54 cabinet during the
software upload, except by disconnecting power.
Critical process
Once all the software data have been uploaded correctly to the
scratch pad, it will automatically be transferred to the
microprocess or (Flash PROM). This is a critical process.
When the message Blanking Flash appears the internal transfer
process has started. This process will only last a few seconds.
The end of the criticial process is identified with the message
Programming Done.
If you loose power on the PI54 cabinet during this critical
internal transfer process, you may not be able to restart the
upload. Try one more time. If still unsuccessful, contact your
Simrad dealer to have the PI54 cabinet shipped for
reprogramming.