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Junior Varsity
Presonous 24.4.2 going full gain suddenly
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<blockquote data-quote="Robert Lofgren" data-source="post: 108090" data-attributes="member: 2447"><p>Re: Presonous 24.4.2 going full gain suddenly</p><p></p><p></p><p>The problem isn't so much the boot loader but the fact that it reads the comfiguration data from the corrupt flash.</p><p></p><p>The studiolive has two cpu's one is the arm-based sharc dsp and the other is some 8051 derivate.</p><p></p><p>The sharc is responsible of the firewire interface but it has no program flash memory. Its program only loads and run in ram. The other cpu has the flash memory that also contains the sharc code. When the sharc bootloader starts it awaits the second cpu to download its code via spi. This also configures the firewire interface.</p><p></p><p>The second cpu now wait for confirmation that the sharc has fully booted. When the downloaded code is executed on the sharc it tells the second cpu that it's now ready to service.</p><p></p><p>If the sharc code and configuration data is corrupt the firewire interface will never work and there is no way for a normal user to re-flash the memory and restart from fresh :-( the second cpu will wait forever on its sharc friend...</p></blockquote><p></p>
[QUOTE="Robert Lofgren, post: 108090, member: 2447"] Re: Presonous 24.4.2 going full gain suddenly The problem isn't so much the boot loader but the fact that it reads the comfiguration data from the corrupt flash. The studiolive has two cpu's one is the arm-based sharc dsp and the other is some 8051 derivate. The sharc is responsible of the firewire interface but it has no program flash memory. Its program only loads and run in ram. The other cpu has the flash memory that also contains the sharc code. When the sharc bootloader starts it awaits the second cpu to download its code via spi. This also configures the firewire interface. The second cpu now wait for confirmation that the sharc has fully booted. When the downloaded code is executed on the sharc it tells the second cpu that it's now ready to service. If the sharc code and configuration data is corrupt the firewire interface will never work and there is no way for a normal user to re-flash the memory and restart from fresh :-( the second cpu will wait forever on its sharc friend... [/QUOTE]
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Presonous 24.4.2 going full gain suddenly
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