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Rockbox mail archiveSubject: Re: Survey: who has a non-V1 boot ROM?Re: Survey: who has a non-V1 boot ROM?
From: Klaus Heerlein <Klaus.Heerlein_at_online.de>
Date: Mon, 22 Sep 2003 12:27:48 +0200 Hi Jörg, Just bought another JBR10 for my girlfriend - Rom type V2 0x8C1E A collegue bought another one . We would be glad if you would manage to make it possible to flash those also. On my older JBR20 its working like a charm - so anyway big big thanks for all your work ! On one hand I am a bit anxious ... - but I have the tools for the serial mod so if no one has done it already I could do it with your help. [IDC]Dragon wrote: > Hello Rockboxers, > > since a while the hardware info screen (Debug->HW Info) computes a CRC > across the boot ROM, to identify it. This ROM is built into the CPU and is really > permanent, not to be confused with Flash. > > The majority has what I called V1 for version 1. This bootcode is identical > to Players, Recorders, FMs. I exploit its features for my Flash bootloader > and the UART boot mod. So if you have flashed already, you for shure have V1 > and can stop reading here. > > However, some boxes are different, have what I call a V2 boot ROM which > expects a different Flash layout. This is the reason why I have no Flash support > for those yet. > > So, even if you don't like flashing, can you please check if your ROM CRC > value is different from 0x222F, the V1 value? In that case please post here, > tell us which model you have. V2 users will find 0x8C1E. I'd like to find out > how many there are, if it's worth spending effort on it. If you discover a > value different than these two, I'd say "oh no" but be highly interested and > want a dump from you. > > The follow up question would be: Is there somebody with a V2 bootrom who > has/can do the serial mod to verify this? We can start easy, first blink the > LED, more as you like. > > Jörg > Received on 2003-09-22 Page template was last modified "Tue Sep 7 00:00:02 2021" The Rockbox Crew -- Privacy Policy |