2. Load QSPI from FAT
Starts flashing of the QSPI firmware. The firmware DM42_qspi_xxx.bin is expected to be stored in
the FAT filesystem root directory.
3. Activate USB Disk >
Used to copy files from/to a host computer.
• Connect the calculator to a computer using a USB cable
• The DM42’s flash disk should be visible on the computer
• Read/write files
• 'Eject device' on the host machine.
• Calculator should end USB disk mode automatically if correctly ejected by OS. You can end USB
disk mode by pressing [ EXIT ] key on the calculator but be sure all data are flushed to disk first.
The last two points 'Eject device' and 'Press [ EXIT ] key on calculator' (if it doesn’t
end automatically) are important to avoid unsaved data and possible FAT disk
corruption!
4. Format FAT Disk >
Format the internal FAT disk storage. All data is erased.
5. FAT Disk Media Test >
Checks whole flash disk FAT area for bad blocks. Disk is formatted starting from first good block
after the check.
All data is erased from disk.
6. Show Disk Info >
Displays disk status and disk block info.
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