RTEMS / Zynq (microZed) - Writing data to a file on removable media (SD card)

Jim Elliott jim.elliott at nta-inc.net
Mon Jul 22 19:43:09 UTC 2019


Jonathan,

Thank you for the detailed feedback. That is very helpful. Looks like I have some homework to do...

-Jim

________________________________
From: Jonathan Brandmeyer <jbrandmeyer at planetiq.com>
Sent: Friday, July 19, 2019 3:24 PM
To: Jim Elliott
Cc: users at rtems.org
Subject: Re: RTEMS / Zynq (microZed) - Writing data to a file on removable media (SD card)

On Fri, Jul 19, 2019 at 2:02 PM Jim Elliott <jim.elliott at nta-inc.net> wrote:
>
> Jonathan,
>
> Thank you for the pointer. Before I go down that route, would it be easier to put the sd card into a usb adapter?
>
> When I say easier, would this preset an option which already has working solution? If so are there any pointers as to how to implement this solution? The "Using_the_RTEMS_DOS_File_System" alludes to a Flash Disk but there are no details (and I am assuming that Flash Disk == USB Flash, maybe that is an incorrect assumption)....

For the Zynq platform, the only bidirectional bulk data interface that
is supported out-of-the-box is the Ethernet port.  There's also an
NFSv2 client (look for librtemsNfs.h) if your code is tightly coupled
to filesystem-like interfaces... and you're willing to deal with the
network security issues inherent to NFSv2.

For a one-way interface from your development environment to the
application, you can also package some program data with your
application using the UnTar_Xz* family of support functions and
rtems-bin2c.

Depending on how early you are in the development cycle, it may be
worthwhile to take a look at nexus-devices.h to get a better idea of
which BSP's support which features.  The Other Leading Brand (Intel
nee Altera Cyclone V) has better RTEMS support right now.


--
Jonathan Brandmeyer

________________________________

CONFIDENTIALITY NOTICE: The contents of this e-mail message may be privileged, confidential, proprietary, Controlled Unclassified Information (CUI) or otherwise protected against disclosure or dissemination. This e-mail message and any files transmitted with it are intended solely for the use of the individual/individuals or entity/entities to whom they are addressed. If you are not the intended recipient of this message, any dissemination, distribution, printing or copying is strictly prohibited. If you have received this message in error, please e-mail or call the sender (jim.elliott at nta-inc.net, ) and destroy all copies.

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.rtems.org/pipermail/users/attachments/20190722/b2527afb/attachment-0002.html>


More information about the users mailing list