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3 Appendix

3.1 Establish serial connection with subsystems

3.1.1 Connect serial wire to the PBA The download of new program is performed using the serial port (J1). Connect the 3-terminal 2.54 mm connector to J1 on the PBA. The ground pin is located closest to the heat sink.

Figure 1 Serial port (J1) with GND pin closest to the heat sink

3.1.2 Establish communication Start Hyper Terminal on the PC. Choose the port to which you have connected the wire (Figure 2).

GND

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Figure 2 Choose COM port for serial communication

Enter the communication settings in the pop up dialog window according to Figure 3. The Ship Sensors Boards are using the baud-rate of 4800 baud, 8 databits, 1 stopbit.

The Axis Controllers and the Tracking Device Unit are using 9600 baud, 8 databits and 1 stopbit.

Figure 3 Communication settings

Go to File -> Properties, choose the Settings tab and enter the settings according to Figure 4.

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Figure 4 Emulation settings

Press the ASCII settings button and enter the settings according to Figure 5.

Figure 5 ASCII settings

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3.2 Upgrading the subsystem firmware

3.2.1 Establish serial connection Establish a serial connection with the subsystem according to the instructions in chapter 3.1.

3.2.2 Enter program mode To be able to program the micro processor the PBA has to be in program mode. The PBA is set in program mode in 3 steps (Figure 6):

Short circuit J4, keep it short circuited Short circuit J2 and release it Wait for a couple of seconds , then release J4

Figure 6 Reset jumper (J2) and boot jumper (J4)

3.2.3 LPC2000 Flash Utility All cards (Ships Sensors Boards, Tracking Device Unit, Axis Controllers), except for the ACU, are programmed using the Phillips / NXP LPC2000 Flash Utility, available at http://www.nxp.com/products/microcontrollers/support/software_download/lpc2000/index.html.

Make sure Hyper Terminal is closed before starting LPC2000 Flash Utility. When started choose the COM port used and set Baud Rate (9600).

J2 J4

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Figure 7 LPC2000 Flash Utility

Start by clicking Read Device ID to make sure the PBA is connected with the PC. The program responds with Read Part ID Successfully in the lower left corner.

Click Erase, the program will respond with Erased LPC2000 Flash Successfully.

Choose the file you want to upload and click Upload to Flash. This will take about 1 minute, when finished File Upload Completed will show in the lower left corner.

Close LPC2000 Flash Utility.

3.2.4 Reset the PBA Perform a reset by short circuiting J2 on the PBA. Start Hyper Terminal and make sure that you are able to communicate with the PBA.