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Subject: Re: Iriver iFP7xx RAM size

Re: Iriver iFP7xx RAM size

From: Dave Hooper <dave_at_beermex.com>
Date: 2005-07-18

http://www.rockbox.org/twiki/bin/view/Main/IriverFP3XX5XXHardwareComponents

This page suggests that the 5xx series at least already have 8MB SDRAM.. so
a 5xx or 3xx port is already 'feasible'.

The 7xx series CPU has 64KB of SRAM *on the processor*. This is the same
sort of approach as the coldfire CPU used in the iriver H1xx/H3xx series,
which have 96KB of SRAM. This is in *addition* to any general SDRAM. I
am quite certain that the 7xx also has SDRAM - a fully functional mp3 player
with LCD display and graphical user interface can almost certainly not be
implemented with just 64K of ram..

d

----- Original Message -----
From: "Tomasz Malesinski" <tmal@mimuw.edu.pl>
To: <rockbox@cool.haxx.se>
Sent: Monday, July 18, 2005 7:54 PM
Subject: Iriver iFP7xx RAM size

> Dan Hollis has recently updated the wiki page:
>
> http://www.rockbox.org/twiki/bin/view/Main/WebHome?topic=IriverIfpPort
>
> He wrote that iFP7xx players have only 64 kB of RAM. Having analyzed
> their firmware a bit I am quite sure that beside the PNX0102 internal
> SRAM they also have much more (probably 1 MB) SDRAM located at
> 0x24000000. Does anyone know for sure what the RAM size is? Has
> anyone opened an iFP7xx player and noted what chips are inside? This
> information seems to be quite important for the decision on whether to
> start porting Rockbox to iFP or not.
>
> I do not write to Dan directly, because his email address on his wiki
> page does not look promising to me (spamtrap?).
>
> --
> Tomek Malesinski
> _______________________________________________
> http://cool.haxx.se/mailman/listinfo/rockbox
>

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Received on Mon Jul 18 23:19:10 2005


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