firewire video on RTEMS-4.6.x-MVME5500
feng1 at bnl.gov
Wed Oct 10 17:42:40 UTC 2007
Mark Rivers wrote:
> I recently got a GigE camera from Prosilica. It is 1360x1024
> resolution. At 8-bits the StreamPix software from Norpix is able to
> acheive frame rates of 30Hz at full resolution, and 52 Hz when it is
> 2x2 binned to 680x512. This is under Windows, using the single GigE
> port on the PC, with the camera and PC connected directly to a GigE
> switch (which also is connected to the rest of the LAN).
Does the window has any tool to measure the actual
network throughput of the 1GHz ? Or do you have any
H/W tool to measure it ? If so, how many Mega bytes/sec
of throughput ?
Can the window run remote client ?
> *From:* tech-talk-bounces at aps.anl.gov
> [mailto:tech-talk-bounces at aps.anl.gov] *On Behalf Of *Kate Feng
> *Sent:* Wednesday, October 10, 2007 10:17 AM
> *To:* Daron Chabot; rtems-users at rtems.org; tech-talk at aps.anl.gov
> *Subject:* Re: firewire video on RTEMS-4.6.x-MVME5500
> Daron Chabot wrote:
>> Sorry for not being more clear: I am only interested in the EPICS
>> and EDM applications you've created for displaying the video, not
>> in any of the RTEMS-related code.
> I did not change any EDM applications or EPICS base. The protocol
> is CA. The optimization is implemented at RTEMS device driver
> and IIDC1394 library layers. The BSP is RTEMS-MVME5500.
> The driver does not have to be linked to EPICS.
> It is just another real-time application with the RTEMS-MVME5500
> BSP. It triggers the camera at 30 fps and display at 30Hz
> simultaneously for the 1024x768x8bit mode (video mode) even under the
> limited 100MHz network bandwidth and indeterministic network
> Yes, in the 100MHz NIC, the actual network throughput is not
> 30Hzx1024x768x8 bits. But it is greater than 10Hz. Thus, the
> system does
> not have to run in a private network. I do not believe it
> will be slower with a non-EPICS application.
>> Here at the CLS we're using linux-based soft IOCs to communicate
>> with Flea and Flea2 cameras.
>> We're having difficulty in achieving video frame rates greater
>> than about 10 Hz at 640x480 resolution. I'm interested to know
>> how you are getting such fine performance (aside from using RTEMS
>> :-) ).
> Perhaps I will have the optimization written in a publication, so that
> hopefully it can help the Linux or vxWorks users. If so, will you
> feedback to this list regarding how much improvement you achieved
> in the Linux driver ?
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