Raymarine NMEA BRIDGE Specifications download pdf (Page 25)

S e a T a l k < - > N M E A

B r i d g e

Software update

The board software can be updated by using the built in Bootstrap-Loader function.

If you find anything missing in the software, if you should find any software errors or if you

have new ideas – just sent a mail to FWallenwein@tklinux.de

New / revised software can be sent by E-Mail and the SeaTalk NMEA bridge owner can

update the controller software him/herself.

Bootstrap method advantages :

No hardware programmer needed.

Just a USB connection to PC and a PC software is needed.

Fuses and bootstrap software can not be erased accidentally.

Latest software versions can be found at http://www.gadgetPool.de

Bootstrap Loader Method

Connect the SeaTalk NMEA bridge to your PC ( using USB Port )

Open a terminal program ( i.e. hypertern ) and set it to 4800 baud, 8 bit, no parity, no

handshake.

Type “ $xxx “ and press ENTER

Bridge responds with “ $xxx “. When you receive the $xxx, connection to your bridge is

established and working propperly. If $xxx does not appear after you pressed ENTER,

check connection, setting of com-port, baudrate etc.

Enter $SWUPDATE

The bridge will respond with

Software Update Function will start in 40 sec.

...

Close the terminal program.

Start the supplied bootstrap software (Megaload ) on the PC.

Open the image file you would like to program into the bridge.

Select your serial port in bootstrap software

Select 9600 baud

After the 40 sec timeout, the bootstrap software finds the SeaTalk NMEA bridge and

flashes the new software.

The default timeout of 40 seconds can be adjusted.

Just enter $SWUPDATE,xxx , where xxx is the timeout in seconds.

SeaTalk NMEA Bridge 128SD Sw Version 3.01 Page 25 of 28

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Raymarine NMEA BRIDGE Specifications Page 25