Search found 231 matches

by BenF
Fri May 04, 2012 11:46 pm
Forum: DSO
Topic: DSO firmware version 3.64
Replies: 180
Views: 231197

Re: DSO firmware version 3.64

decebal76 wrote:Also i noticed that the generator is always on, is that consuming resources?
To turn it off completey, you can set duty cycle to zero. You can also save this setting as part of your power on profile if you prefer the generator to be off by default.
by BenF
Sat Apr 14, 2012 1:44 am
Forum: DSO
Topic: DSO firmware version 3.64
Replies: 180
Views: 231197

Re: DSO firmware version 3.64

The post linked to above suggests the problem is the same with the stock firmware. If it is indeed a problem that can be fixed in firmware, why is there no fix available and why was it shipped defective in the first place? The display problem is news to me and keep in mind that V2 has been in the ma...
by BenF
Fri Mar 30, 2012 1:28 am
Forum: DSO
Topic: Futur version, function Horizontal and Driving position!
Replies: 2
Views: 3885

Re: Futur version, function Horizontal and Driving position

You can already shift the waveform vertically (YA – Vert Pos) and horizontally (XA – Trig Pos) using the current version. It is also possible to offset the reference both horizontally and vertically from the live waveform. Use “YA - Ref Pos” for a vertical offset and “XA – Trig Pos” for a horizontal...
by BenF
Thu Mar 22, 2012 1:13 am
Forum: DSO
Topic: Waves triangular and teeth of saw with DSO Nano V2.
Replies: 5
Views: 4652

Re: Waves triangular and teeth of saw with DSO Nano V2.

If I connect only the white probe(output) of the generator to the white positive probe input, is this dangerous? No, it is perfectly safe to connect signal generator output to positive probe input as long as you do not also connect the negative probe. You can also connect the Nano to an external si...
by BenF
Wed Mar 21, 2012 2:13 pm
Forum: DSO
Topic: Waves triangular and teeth of saw with DSO Nano V2.
Replies: 5
Views: 4652

Re: Waves triangular and teeth of saw with DSO Nano V2.

Is this possible to obtain waves triangular ans teeth of saw with the DSO Nano V2. No, this is not possible. The waveform generator can only output a square wave. Additional hardware (not available on the Nano) would be required to support other waveforms. I succeeded in obtaining a triangular wave...
by BenF
Wed Feb 22, 2012 1:55 am
Forum: DSO
Topic: Strange FIT mode behaviour, V3.64
Replies: 3
Views: 2860

Re: Strange FIT mode behaviour, V3.64

If the Nano starts to bounce between ranges, it's time to escape from FIT mode and manually fine-tune the controls. It's a bit tricky to completely avoid bouncing and still make the FIT function responsive. This is a firmware issue and no indication of problem with your Nano. You can safely continue...
by BenF
Wed Feb 22, 2012 1:34 am
Forum: DSO
Topic: USB indicator stuck (BenF 3.61)
Replies: 3
Views: 2783

Re: USB indicator stuck (BenF 3.61)

This is more than likely a hardware issue and if the unit is under warranty you may want to return it for repair. If you're handy with electronics and want to have a go at fixing it yourself, I would check the voltage across R26 first. This should read about 3.1V when connected to USB and 0V otherwi...
by BenF
Wed Feb 01, 2012 4:36 am
Forum: DSO
Topic: Issue with measured input changing with frequency
Replies: 9
Views: 5410

Re: Issue with measured input changing with frequency

There is a difference in DC input resistance between the 100mV (1.02M) and 200mV (546k) input range. This may explain a difference in bandwidth between the two, but I did not expect this to be an issue at 1+ kHz (or even 100+ kHz). Input capacitance is not specified for all paths on my schematic and...
by BenF
Sun Jan 22, 2012 9:48 pm
Forum: DSO
Topic: DSO firmware version 3.64
Replies: 180
Views: 231197

Re: DSO firmware version 3.64

BenF, care to comment on the possibility of simple IIR filters for the DSO Nano? The current firmware version supports two FIR filters, namely peak and average. These are used in fast (oversampled) mode for display rendering (raw capture data used for export is not filtered). I also implemented a v...
by BenF
Sat Jan 21, 2012 1:46 am
Forum: DSO
Topic: DSO firmware version 3.64
Replies: 180
Views: 231197

Re: DSO firmware version 3.64

My DSO nano V1 gets stuck ...
It would be more helpfull if you post a link to the SD card (type, brand, size) you're having problems with.