User manual

It is possible that you could get an "Incompatible Version" error if the plugin
interface has changed since you last flashed Rockbox. This means you are
running an "old" copy of Rockbox, but are trying to execute a newer plugin, the
one you just downloaded. The easiest solution is to ROLO into this new version,
by playing the ajbrec.ajz
ajbrec.ajz ajbrec.ajz
ajbrec.ajz file. Then you are consistent and can play
rockbox.ucl
rockbox.uclrockbox.ucl
rockbox.ucl.
When done, you can restart the box and hopefully your new Rockbox image.
UCLs for the latest Recorder and FM firmware are included in Rockbox 2.4 and also
the daily builds.
7.6
7.6 7.6
7.6 Known Issues and Limitations
Known Issues and LimitationsKnown Issues and Limitations
Known Issues and Limitations
There are two variants as to how the Jukebox starts, which is why there are normal
and _norom firmware files. The vast majority of Jukeboxes all have the same boot
ROM content, but some have different flash content. Rockbox identifies this boot
ROM with a CRC value of 0x222F in the hardware info screen. Some recorders
have the boot ROM disabled (it might be unprogrammed) and start directly from
a flash mirror at address zero. They need the _norom firmware, it has a slightly
different bootloader. Without a boot ROM there is no UART boot safety net. To
compensate for that as much as possible the MiniMon monitor is included, and
can be started by pressing F3+ON. Using this the box can be reprogrammed via
serial if the UART mod has been applied and the first ~2000 bytes of the flash are
OK.
7.7
7.7 7.7
7.7 ROMbox
ROMboxROMbox
ROMbox
ROMbox is a flashable version of Rockbox that is uncompressed and runs directly
from the flash chip rather than being copied into memory first. The advantage of
this is that memory that would normally be used for storing the Rockbox code can
be used for buffering MP3s instead, resulting in less disk spin-ups and therefore
longer battery life Unfortunately being uncompressed, ROMbox requires more
space in flash than Rockbox and will therefore not fit in the space that is left on an
FM recorder. ROMbox therefore runs on the V1 and V2 recorder models only.
The procedure for flashing ROMbox is identical to the procedure for flashing
Rockbox as laid out on page 82. The only difference is that the file to install is
called rombox.ucl
rombox.uclrombox.ucl
rombox.ucl. ROMbox is included automatically with rockbox 2.4 and all
the current daily builds, so the procedure is identical otherwise.
Part 6: Advanced Topics / Reference 83