System menu

Flash firmware from FAT

Starts flashing of new firmware if the firmware file is stored in root directory of FAT disk. This is usually not necessary because calculator automatically detects presence of new firmware file and asks for update after end of USB disk mode.

See Firmware update chapter for more information about firmware update.

Bootloader

Activates bootloader mode for firmware flashing.

You can flash {platform} firmware once is the bootloader mode entered. See Firmware update chapter for more information about firmware update.

Press the RESET button on the back of the calculator if you activate Bootloader mode accidentally.

Program Info

Displays information about currently loaded {pgmname}. This is mainly for diagnostics.

Reset to DMCP menu

Reboots calculator back to DMCP system menu.

Warning
 All unsaved data is lost.

Format FAT Disk >

Format the internal FAT disk storage.

Warning
 All data is erased from disk.

FAT Disk Media Test >

Checks whole flash disk FAT area for bad blocks. Disk is formatted starting from first good block after the check.

Warning
 All data is erased from disk.

Power OFF mode

This item is purely for power OFF testing purposes to avoid time consuming switching between firmwares. It is in no way mentioned to be changed by users.

  • Mode 0 means no deep sleep for QSPI giving approx. 12uA sleep current.

  • Mode 1 corresponds to pre 3.9 DMCP behavior.

  • Mode 2 corresponds to DMCP 3.9 and newer versions.

  • Mode 3 is the latest update to mode 2 which should fix possible deficiencies of mode 2 by adding further pull-ups.

Defaults:

hwid=0 : Mode 1
hwid=1 : Mode 3

Note that the "Power OFF mode" value is preserved during calculator RESET, but is lost when battery is removed.

Self Test

Displays production test menu where tests of various parts of calculator could be run from.

Self Test menu
1. KBD Test
2. LCD Test
3. IR Test
4. BEEP Test
5. Diagnostics