Rockbox mail archive
Subject: Re: Survey for Rockbox in Flash, please participate
From: leslie carver (leslie_at_tvismylife.com)
JBR20, black bumpers
Flash: M=BF D=D6
----- Original Message -----
Sent: Monday, May 19, 2003 5:54 AM
Subject: Survey for Rockbox in Flash, please participate
> we're starting to work on the possibility to bring Rockbox into the Flash
> ROM of the jukebox. Imagine booting in maybe 3 seconds!
> Don't tell me it's dangerous. The box has a boot ROM, it seems to contain
> little monitor communicating over RS232. We may be able to use this to
> code to program the box even if the flash is completely garbled. All this
> to be analyzed yet.
> There are units with flash chips that could be programmed in-system, while
> others can't (like mine, grr!).
> I made some test code to find out, by reading the flash IDs. Since the
> 20030518 daily build this code is in. Please test yours, in the menu go to
> (Keep Out!)" -> "View HW info". If the Flash entry lists hex bytes for
> manufacturer and device, you're lucky. If it gives only question marks, it
> to bring the flash into command mode, meaning either the chip would need a
> 12.5V programming voltage (like my SST37VF020) or you have some exotic
> code is not prepared for.
> The lucky guys are most likely to find "Flash: M=BF D=D6", which means
> SST39VF020. I would be very interested in other values.
> If you did the test, please post here or email me regardless of the
> I'd like to get some meaningful statistics.
Page was last modified "Jan 10 2012" The Rockbox Crew