MBARI OASIS3 Mooring Guide

How to Reformat the CFM Card

If you're using a factory-fresh CFM card in the Persistor CF2 board, its DOS partition is probably formatted for 4 KB blocks (or smaller, for small cards!). You can greatly increase the efficiency of OASIS3 by reformatting the card to use 16 KB blocks. By reformatting, you will:

• Greatly decrease the time needed to write log data
• Speed up OASIS3 boot time
• Reduce wear and tear on the CFM card
• Greatly decrease the time it takes to save programs to CFM while debugging

Procedure

1. Put the CFM card to be formatted in Persistor CF2 card on theOASIS3 CPU board.
2. Connect the serial terminal cable. Run a terminal emulator program (e.g. Motocross).
3. Boot OASIS3 normally.
4. Execute the user command diag. Follow the instructions to repeat the magic word to go into diagnostic mode.
5. Choose option F, reformat Compact Flash Card.
6. For "New sectors/cluster:", type 32 (Note that 32 * 512 bytes = 16 KB)
7. For "New # Root Directory Entries:", use 4096 (for larger CFM cards. For cards < 32 MB, you might want to use 1024).

You're done! The program will print the new Boot Record parameters. When finished, you may reboot OASIS3 by choosing option X.