The main difference between LibSWD and Versaloon approach is that LibSWD
takes DAP operations and translates them to/from bitstream at host level so
it can be applied to any interface which makes it very generic solution,
while Versaloon takes DAP operations and transfers them into interface that
takes care of bitstream generation/analysis which makes things faster over
high latency links like USB but it requires complex firmware for
interface...
Best regards :-)
Tomek
--
CeDeROM, SQ7MHZ, http://www.tomek.cedro.info
On May 26, 2012 5:09 AM, "Xiaofan Chen" <xiaof...@gmail.com> wrote:
> On Sat, May 26, 2012 at 12:13 AM, Liviu Ionescu <i...@livius.net> wrote:
> > I am considering adding support for SWO trace to the J-Link driver,
> > which requires SWD support.
> >
> > are there any plans to do this? is there any previous work regarding
> this,
> > not published to the repository?
> >
> > regarding the existing swd support, I would appreciate, from the
> > person(s) leading/contributing to the swd implementation, a short
> briefing
> > with the current status, and short/medium term plans, in order to avoid
> > duplicating efforts.
>
> Other than Tomek's libswd work, Simon Qian has the SWD patch for
> his Versaloon as well.
> http://www.versaloon.com/doc/versaloon/doc_versaloon_openocd_urjtag.html
>
> As per Versaloon forum, Simon will prepare the SWD patch for the
> upcoming OpenOCD 0.6.0 release as well.
> http://tech.groups.yahoo.com/group/versaloon/message/239
>
> He is also considering a new High Speed USB based HW.
> http://tech.groups.yahoo.com/group/versaloon/message/240
>
> To Simon:
> For USB VID/PID, Peter posted this link and it may be a choice for you.
> http://marc.info/?l=libusb-devel&m=133763673503224&w=2
>
> http://wiki.openmoko.org/wiki/USB_Product_IDs#Open_registry_for_community_.2F_homebrew_USB_Product_IDs
>
> --
> Xiaofan
>
>
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