Re: [Discuss-gnuradio] Photo of the Beagle Board and USRP
On Fri, Apr 25, 2008 at 9:32 AM, Jeff Brower [EMAIL PROTECTED] wrote: You are talking about the ARM9 core on the OMAP device, right? If so then you can run Linux on the ARM core but overall processing capability will be limited compared to a Xeon or Core2-something PC. Now if you can migrate signal processing tasks to the C55x DSP core on the OMAP, then you're in business. For anyone who is wondering, OMAP series devices are widely used in cellphones and other very low power consumption hand-helds -- the chip series is one of TI's major breadwinners. The OMAP on the beagle board is one of the new OMAP3530 which have a Cortex-A8 and a TMS320C64x+ DSP core. Features of the OMAP can be found here: http://focus.ti.com/docs/prod/folders/print/omap3530.html#features The Cortex-A8 has the NEON SIMD co-processing available to it. Details can be found here: http://www.us.design-reuse.com/articles/11580/architecture-and-implementation-of-the-arm-cortex-a8-microprocessor.html Another interesting tidbit is the graphics accelerator (which I believe is really just another ARM core?) may also be able to offload some of the processing that may want to be done. It may not be able to handle 4MHz bandwidth serial-tone equalized waveforms, but you should be able to take a couple FFTs in real time which is enough for OFDM. Brian ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Photo of the Beagle Board and USRP
Brian- On Fri, Apr 25, 2008 at 9:32 AM, Jeff Brower [EMAIL PROTECTED] wrote: You are talking about the ARM9 core on the OMAP device, right? If so then you can run Linux on the ARM core but overall processing capability will be limited compared to a Xeon or Core2-something PC. Now if you can migrate signal processing tasks to the C55x DSP core on the OMAP, then you're in business. For anyone who is wondering, OMAP series devices are widely used in cellphones and other very low power consumption hand-helds -- the chip series is one of TI's major breadwinners. The OMAP on the beagle board is one of the new OMAP3530 which have a Cortex-A8 and a TMS320C64x+ DSP core. Features of the OMAP can be found here: http://focus.ti.com/docs/prod/folders/print/omap3530.html#features The Cortex-A8 has the NEON SIMD co-processing available to it. Details can be found here: http://www.us.design-reuse.com/articles/11580/architecture-and-implementation-of-the-arm-cortex-a8-microprocessor.html Another interesting tidbit is the graphics accelerator (which I believe is really just another ARM core?) may also be able to offload some of the processing that may want to be done. It may not be able to handle 4MHz bandwidth serial-tone equalized waveforms, but you should be able to take a couple FFTs in real time which is enough for OFDM. Thanks Brian. Yes the 64x+ core is TI's top of the line. The most powerful device they have is a 6-core 64x+ device (look for TCI6486 or TNETV3020) on the web. But 64x+ sucks more power... so have to see whether the new OMAPs end up in Nokia phones or not. In this case TI's target market can probably be described as more generic wireless terminals. If TI would come out with native, factory-supported Linux running on their DSP devices, then they could get in the open source game. As it stands they're on the sidelines, and people like ADI and Freescale are working their way in. On paper the Beagle board looks like a good candidate for embedded GNU radio, but taking advantage of the 64x+ core would take substantial DSP work -- a level that only would apply for a commercial product. -Jeff ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Photo of the Beagle Board and USRP
Philip Balister wrote: I've received a Beagle board and started testing the USRP connection. (Still needs work) I've had several requests for more information so I thought a photo would help people understand the possibilities. http://www.flickr.com/photos/[EMAIL PROTECTED]/2439256116/ Philip Hello, The Beagle board looks interesting. I have looked at the OMAP 5912 processor. Is it available yet? The webpages I found indicate this is a future product. 73 Eric ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] Photo of the Beagle Board and USRP
I've received a Beagle board and started testing the USRP connection. (Still needs work) I've had several requests for more information so I thought a photo would help people understand the possibilities. http://www.flickr.com/photos/[EMAIL PROTECTED]/2439256116/ Philip ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Photo of the Beagle Board and USRP
On Thu, Apr 24, 2008 at 7:52 PM, Bob [EMAIL PROTECTED] wrote: Hi Philip, just being curious :) what are you going to use the combo(beagle+usrp) for? use beagle to replace the usrp host? they are not connected in your pic. They really are connected. I added a note to the picture :) Right now, I can load the 8051 and see the LED blink slow down. Then the USB interface comes unglued. Not surprising since this is really bleeding edge stuff. Long term, I wonder if the ARM NEON instructions are useful for signal processing. At the very minimum, this is a cheap system for narrow band signals. Here's the log from a usrper load_standard_bits run. I promise the cable is connected and I did not fake this :) The Angstrom Distribution beagleboard ttyS2 Angstrom 2008.1-test-20080410 beagleboard ttyS2 beagleboard login: root [EMAIL PROTECTED]:~# usrper load_standard_bits usrper: failed to find usrp[0] [TURN ON POWER TO USRP] [EMAIL PROTECTED]:~# 6usb 1-1: new high speed USB device using ehci-omap and address 2 usb 1-1: new high speed USB device using ehci-omap and address 2 6usb 1-1: configuration #1 chosen from 1 choice usb 1-1: configuration #1 chosen from 1 choice [EMAIL PROTECTED]:~# usrper load_standard_bits usrper: found unconfigured usrp; needs firmware. 6usb 1-1: USB disconnect, address 2 usb 1-1: USB disconnect, address 2 6usb 1-1: new high speed USB device using ehci-omap and address 3 usb 1-1: new high speed USB device using ehci-omap and address 3 6usb 1-1: configuration #1 chosen from 1 choice usb 1-1: configuration #1 chosen from 1 choice 7usb 1-1: usbfs: USBDEVFS_CONTROL failed cmd usrper rqt 64 rq 2 len 64 ret -71 usb_control_msg failed: error se7usb 1-1: usbfs: USBDEVFS_CONTROL failed cmd usrper rqt 64 rq 9 len 1 ret -71 nding control message: Protocol 7usb 1-1: usbfs: USBDEVFS_CONTROL failed cmd usrper rqt 64 rq 9 len 1 ret -71 error usb_control_msg failed: e7usb 1-1: usbfs: USBDEVFS_CONTROL failed cmd usrper rqt 64 rq 9 len 1 ret -71 rror sending control message: Pr7usb 1-1: usbfs: USBDEVFS_CONTROL failed cmd usrper rqt 64 rq 9 len 1 ret -71 otocol error usb_control_msg fa7usb 1-1: usbfs: USBDEVFS_CONTROL failed cmd usrper rqt 64 rq 9 len 1 ret -71 iled: error sending control mess7usb 1-1: usbfs: USBDEVFS_CONTROL failed cmd usrper rqt 64 rq 9 len 1 ret -71 age: Protocol error usb_control_msg failed: error sending control message: Protocol error usb_control_msg failed: error sending control message: Protocol error usb_control_msg failed: error sending control message: Protocol error usb_control_msg failed: error sending control message: Protocol error usrp: failed to load fpga bitstream /usr/share/usrp/rev4/std_2rxhb_2tx.rbf. usrper: failed [EMAIL PROTECTED]:~# ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
