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<viric>
hm I'm trying to get a serial port to the gp2x and I fail...
<viric>
ok got it
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<viric>
anyone good on yaffs?
<viric>
how can I dump a yaffs into a file so I can mount it with a loop device?
<GNUtoo-desktop>
viric, hmmm you need a fake MTD on RAM
<GNUtoo-desktop>
to be able to mount a yaffs
<GNUtoo-desktop>
else you can just exrtact from it
<GNUtoo-desktop>
with some tools
<GNUtoo-desktop>
but usually you dump the flash partition with mtd-utils
<viric>
ah ok
<viric>
thank you
<viric>
I've lots of <7>**>>ecc error unfixed on chunk 3844:0
<mth>
is the OOM area configuration correct?
<mth>
you have to tell Linux where the ECC bytes are
<viric>
hm no idea
<mth>
and some devices use different layout than others
<viric>
it's the stock firmware in the gp2x
<viric>
I expect them to have it right
<mth>
and you're running their kernel as well?
<viric>
yes
<mth>
ok, then this should not be the issue
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<viric>
mth: do you use as a serial port terminal emulator?
<mth>
minicom
<viric>
hm quite horrible.
<mth>
if there is something better, please let me know :)
<viric>
I'm used to 'cu'
<viric>
from uucp
<viric>
"cu -l /dev/ttyS1"
<viric>
it's very simple, and does not any terminal emulation
<viric>
but with this serial port, it gives me: cu: write: Input/output error
<viric>
and minicom looks like not able to write now. I don't know what I touched.
<viric>
why would a PC UART return 'input/output error' on write?
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<viric>
ha. it was the hw flow control enabled.
<viric>
mth: about 'flashing a nand'... usually the image contents are the 'mtdblock' contents, isn't it?
<viric>
which is somewhat less bits than raw a mtd access would give.
<mth>
you can have images with and without OOB data
<viric>
hm ok
<mth>
(I wrote OOM before, but that's something different)
<viric>
yes, that confused me.
<viric>
:)
<viric>
you meant OOB area?
<viric>
for me OOM means out of memory
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<viric>
mth: writing to a mtdblock... it says: Writing data without ECC to NAND-FLASH is not recommended
<viric>
wa, got rid of the boot sound of gp2x! mtdblock2 was a RIFF
<mth>
replacing the data and not the ECC would be a bad idea
<mth>
but I'd expect it to recompute the ECC as part of the write operaton
<mth>
not sure if it actually does though
<mth>
AwAyla has more experience with this
<viric>
ok
<viric>
for what I tried with other mtd devices, the write operation did all.
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<jeremybrown82>
i have a question about cpu design
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<LunaVorax>
Hey everyone
<mth>
jeremybrown82: go ahead and ask the question
<jeremybrown82>
can Alternating current of its own form be applied to registers in cpu ad direct currnet voltage by desin there by expanding the capicities of the hardware platform
<jeremybrown82>
like multiplexing at the cpu level
<viric>
anyone ever programmed an arm920t with arm940t coprocessor?
<jeremybrown82>
im thinking about buying an arm laptop and using it for testing software on
<viric>
I wonder how to use the coprocessor
<mth>
I've never heard of CPUs running on alternating current
<jeremybrown82>
not exactly ac persay just a algorythim
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<mth>
viric: afaik it's mostly used for blitting
<viric>
mth: as if it were a clever dma controller?
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<viric>
knowing how to blit.
<jeremybrown82>
viric dont swear..lol
<viric>
I know the gp2x software have the coprocessor used mostly in its libSDL for that