- From: Bernd Porr <BerndPorr_at_f2s.com>
- Date: Sat, 02 Dec 2006 10:59:03 +0000
Hi!
The firmware is in comedilib.
Re single channel acquistion on any channel: I'll add this as soon as
I've got a free minute (probably in january) but you can try. You need
to understand the GPIF on the FX2 to get this to work which is a bit tricky.
/Bernd
www: http://www.berndporr.me.uk/
http://www.linux-usb-daq.co.uk/
Mobile: +44 (0)7840 340069
Work: +44 (0)141 330 5237
University of Glasgow
Department of Electronics & Electrical Engineering
Room 519, Rankine Building, Oakfield Avenue,
Glasgow, G12 8LT
Harish Ganapathy wrote:
> Thanks, I tried to use 6 channel at 3MHz and got a bad address error.
> The driver seems to have cases for 1, 2, 3 and 16 channel only. Is
> there a driver that can handle channels 0 to 5 or can I find the
> explanation of the dux_commands structure to attempt it on my own? If I
> use all 16 channels, I get ~180 khz/channel which is much less than the
> 500 khz I80 khz can get if I acquire only channel 0 to 5.
>
> Also, Where can I get the GPL version of the firmware source code (the
> usbduxfast site says this is available) to attempt to see if single
> channel acquisition can be extended to any channel, not just Channel 0?
>
> Thanks
> Harish Ganapathy, PhD
> Technical Director
> IQC Data Acqusition Systems
> Chennai, India
> email: drgharish_at_gmail.com
>
> On Sat, 2006-11-18 at 11:12 +0000, Bernd Porr wrote:
>> Hi,
>> sorry. I haven't implemented that. If you just want one channel it's
>> just now always channel 0. But of course this could be added to the
>> firmware.
>>
>> Here's a new version I'm just now testing which uses the external
>> trigger signal and a modified cmd.c for external triggger (from the demo
>> directory).
>>
>> /Bernd
>>
>> www: http://www.berndporr.me.uk/
>> http://www.linux-usb-daq.co.uk/
>> Mobile: +44 (0)7840 340069
>> Work: +44 (0)141 330 5237
>> University of Glasgow
>> Department of Electronics & Electrical Engineering
>> Room 519, Rankine Building, Oakfield Avenue,
>> Glasgow, G12 8LT
>>
>>
>> Harish Ganapathy wrote:
>>> Hi,
>>> I am trying to use a USBDuxfast in an application which has 6 channels
>>> of output. I wanted to know if it is possible to scan one channel at a
>>> time on trigger for about 256 samples at 30Mhz. It works for channel 0,
>>> but I cannot get it to work for other channels. In other words, if I
>>> wanted only to sample say Channel 4 at 30 MHz, is it possible?
>>>
>>> Thanks
>>> Harish Ganapathy, PhD
>>> Technical Director
>>> IQC Data Acqusition Systems
>>> Chennai, India
>>> email: drgharish_at_gmail.com
>>>
>>>
>>> _______________________________________________
>>> comedi mailing list
>>> comedi_at_comedi.org
>>> https://cvs.comedi.org/cgi-bin/mailman/listinfo/comedi
>>>
>
>
Received on 2006-12-02Z10:59:03