* [ECOS] FAT32 and SD card support on Redboot.
@ 2009-03-10 19:44 joseph biswal
2009-03-11 19:04 ` [ECOS] " joseph biswal
0 siblings, 1 reply; 6+ messages in thread
From: joseph biswal @ 2009-03-10 19:44 UTC (permalink / raw)
To: ecos-discuss
Hi, All;
I am trying to configure my Redboot for FAT filesystem support.
I am also trying to incorporate the minimal SDHC driver with the code
in packages/devs/flash/arm/mxc/current/src.
I am trying to enable the cdl options in the ecos.ecc file but i had
little success with it as of now. The thing is i generate the .ecc
file from a minimal .ECM file in Redboot source. I have been misled by
conflicting approaches posted on the net.
Does anyone have any hints on as to how to do that?
Thanks,
Munro.
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* [ECOS] Re: FAT32 and SD card support on Redboot.
2009-03-10 19:44 [ECOS] FAT32 and SD card support on Redboot joseph biswal
@ 2009-03-11 19:04 ` joseph biswal
2009-03-11 20:02 ` Chris Zimman
0 siblings, 1 reply; 6+ messages in thread
From: joseph biswal @ 2009-03-11 19:04 UTC (permalink / raw)
To: ecos-discuss
Hi all,
Does anybody have an idea on as to whether or not Redboot supporting
FAT32. I am unable to modify the .ecc file to get the CDL flags
enabled for SDHC and CYGPKG_REDBOOT_DISK but i am unable figure out
the dependency tree for each of them . If anybody has quick hints on
it, it would be great.
Thanks in advance,
Joseph.
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* RE: [ECOS] Re: FAT32 and SD card support on Redboot.
2009-03-11 19:04 ` [ECOS] " joseph biswal
@ 2009-03-11 20:02 ` Chris Zimman
2009-03-11 21:11 ` Andy Jackson
2009-03-12 15:04 ` joseph biswal
0 siblings, 2 replies; 6+ messages in thread
From: Chris Zimman @ 2009-03-11 20:02 UTC (permalink / raw)
To: joseph biswal, ecos-discuss
> Does anybody have an idea on as to whether or not Redboot supporting
> FAT32. I am unable to modify the .ecc file to get the CDL flags
> enabled for SDHC and CYGPKG_REDBOOT_DISK but i am unable figure out
> the dependency tree for each of them . If anybody has quick hints on
> it, it would be great.
The eCos FAT driver supports FAT32. If you use 'ecosconfig' to configure
your tree, it should help you with getting the dependencies sorted out.
Thanks
--Chris
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* Re: [ECOS] Re: FAT32 and SD card support on Redboot.
2009-03-11 20:02 ` Chris Zimman
@ 2009-03-11 21:11 ` Andy Jackson
2009-03-12 15:04 ` joseph biswal
1 sibling, 0 replies; 6+ messages in thread
From: Andy Jackson @ 2009-03-11 21:11 UTC (permalink / raw)
To: Chris Zimman; +Cc: joseph biswal, ecos-discuss
Chris Zimman wrote:
>> Does anybody have an idea on as to whether or not Redboot supporting
>> FAT32. I am unable to modify the .ecc file to get the CDL flags
>> enabled for SDHC and CYGPKG_REDBOOT_DISK but i am unable figure out
>> the dependency tree for each of them . If anybody has quick hints on
>> it, it would be great.
>>
>
> The eCos FAT driver supports FAT32. If you use 'ecosconfig' to configure
> your tree, it should help you with getting the dependencies sorted out.
>
>
Last time I tried to do this (maybe 2 years ago), this is what worked
for me:
1. Make sure that you have a version of the CVS Redboot code later than
July 20 2006 s the range of disk handling commands was extended by the
checkin that day (fs xxx commands)
1. Ignore the Redboot native disk support (don't enable
CYGPKG_REDBOOT_DISK) as this doesn't provide FAT support despite
appearing to at first glance. In fact you can get as far as being able
to identify a disk as FAT formatted (with the disks command), but no
further.
2. Instead, enable the file I/O support (CYGPKG_REDBOOT_FILEIO)
3. Add all the other bits that this requires (disk devices, block I/O,
linux compat layer, FAT filesystem, POSIX file I/O compat layer etc)
4. Build
5. At the Redboot prompt use something like:
fs mount -d /dev/disk0/1 -t fatfs // where disk should be
replaced by the device being used
Hope this is still correct,
Andy
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* Re: [ECOS] Re: FAT32 and SD card support on Redboot.
2009-03-11 20:02 ` Chris Zimman
2009-03-11 21:11 ` Andy Jackson
@ 2009-03-12 15:04 ` joseph biswal
2009-03-12 16:06 ` Gary Thomas
1 sibling, 1 reply; 6+ messages in thread
From: joseph biswal @ 2009-03-12 15:04 UTC (permalink / raw)
To: Chris Zimman; +Cc: ecos-discuss
Thanks!
What i intend to do is either change the cdl values in the .ecm file i
am importing or change the generated file i.e .ecc. But the former
seems simpler, but the issue is haven't digged up to see what is the
difference between "user_value" and inferred value".
Regards,
Munro.
On Wed, Mar 11, 2009 at 1:30 PM, Chris Zimman <czimman@bloomberg.com> wrote:
>> Does anybody have an idea on as to whether or not Redboot supporting
>> FAT32. I am unable to modify the .ecc file to get the CDL flags
>> enabled for SDHC and CYGPKG_REDBOOT_DISK but i am unable figure out
>> the dependency tree for each of them . If anybody has quick hints on
>> it, it would be great.
>
> The eCos FAT driver supports FAT32. If you use 'ecosconfig' to configure
> your tree, it should help you with getting the dependencies sorted out.
>
> Thanks
>
> --Chris
>
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [ECOS] Re: FAT32 and SD card support on Redboot.
2009-03-12 15:04 ` joseph biswal
@ 2009-03-12 16:06 ` Gary Thomas
0 siblings, 0 replies; 6+ messages in thread
From: Gary Thomas @ 2009-03-12 16:06 UTC (permalink / raw)
To: joseph biswal; +Cc: Chris Zimman, ecos-discuss
joseph biswal wrote:
> Thanks!
> What i intend to do is either change the cdl values in the .ecm file i
> am importing or change the generated file i.e .ecc. But the former
> seems simpler, but the issue is haven't digged up to see what is the
> difference between "user_value" and inferred value".
If you want to change a value, uncomment 'user_value' and modify it.
Don't forget to run 'ecosconfig tree' afterwards (that's what makes
the change take effect)
You can't change 'inferred_value's as they are just that; inferred
from other requirements.
> On Wed, Mar 11, 2009 at 1:30 PM, Chris Zimman <czimman@bloomberg.com> wrote:
>>> Does anybody have an idea on as to whether or not Redboot supporting
>>> FAT32. I am unable to modify the .ecc file to get the CDL flags
>>> enabled for SDHC and CYGPKG_REDBOOT_DISK but i am unable figure out
>>> the dependency tree for each of them . If anybody has quick hints on
>>> it, it would be great.
>> The eCos FAT driver supports FAT32. If you use 'ecosconfig' to configure
>> your tree, it should help you with getting the dependencies sorted out.
--
------------------------------------------------------------
Gary Thomas | Consulting for the
MLB Associates | Embedded world
------------------------------------------------------------
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2009-03-10 19:44 [ECOS] FAT32 and SD card support on Redboot joseph biswal
2009-03-11 19:04 ` [ECOS] " joseph biswal
2009-03-11 20:02 ` Chris Zimman
2009-03-11 21:11 ` Andy Jackson
2009-03-12 15:04 ` joseph biswal
2009-03-12 16:06 ` Gary Thomas
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