This sounds like perhaps the driver buffer size wasn't matched to the Audio Buffer size in PowerSDR. This would cause some instability over time (especially after longer DPC events).
Note that you can not set the driver buffer size below the recommended size in the newer driver unless you are in Normal mode (as opposed to one of the Safe Mode settings). Eric Wachsmann FlexRadio Systems -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of INOUE Takafumi Sent: Monday, October 06, 2008 2:35 PM To: FlexRadio Reflector Subject: Re: [Flexradio] Applications/Programs Hello, I have a similar problem here with my Flex5k. The radio starts to sound choppy after 10 to 20 minutes with 96k sampling rate. Clicking the start button solves the problem but it happens again after another 10 minutes or so. With 48k sps it does not seem to occur. The radio had worked flawlessly untill I updated the "Flex-5000 Driver" to Ver.3.2. I both tried on-board and PCI bus connected firewire interface (both use TI chip) and the parameters are set as Tim suggested. DPC latency checker on the driver control panel shows around 1200us. Once I downgraded the driver to ver.3.0 and the problem disappered though it is not recommended by Flex to use the old driver with current firmware/PowerSDR. Takafumi JI3GAB > My FLEX5000A will stall after 3 or less minutes. I have to click on the > start button to get it running again and will quit again. I don't have any > other applications running in the back ground. I check it to the TASK > Manager to make sure. I have a Vista Premium - Intel Quad Core with 4 Gig > memory. I need to know if there other ways to check / or close the > applications on Windows START-up. > 73 > George KE6TE _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/ _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
