Search found 14 matches

by campbellm254
Tue Jun 28, 2011 9:00 pm
Forum: DSO
Topic: Noisy signalgenerator
Replies: 5
Views: 3877

Re: Noisy signalgenerator

Hi CS,

Looks very similar to the issue I had. See thread:

http://www.seeedstudio.com/forum/viewto ... =12&t=1652

best,

C.
by campbellm254
Tue Mar 29, 2011 12:38 am
Forum: DSO
Topic: DSO NANO V2 ONE SHOT CAPTURE?
Replies: 7
Views: 5428

Re: DSO NANO V2 ONE SHOT CAPTURE?

Does Tr. Mode > SINGLE not work for your needs?
by campbellm254
Thu Mar 24, 2011 10:30 pm
Forum: DSO
Topic: Honey, I fried my signal generator?
Replies: 22
Views: 28526

Re: Honey, I fried my signal generator?

Hi owenix,

I never got around to doing anything about it yet. I find my DSO too useful to give up for the time it will take to return it.

I suspected some of the gates in U9, but since I have only the DSO I was unable to confirm that, not wishing to try to use it on its own circuits.
by campbellm254
Sun Jan 23, 2011 9:10 pm
Forum: DSO
Topic: DSO firmware version 3.52
Replies: 49
Views: 35658

Re: DSO firmware version 3.5

Hi Ben,

I re-upgraded and could not reproduce the issue. We'll have to put this one down to an upgrade glitch.

I'll keep an eye out for it happening again.

Thanks again for another very useful upgrade.
by campbellm254
Sun Jan 23, 2011 8:10 am
Forum: DSO
Topic: DSO firmware version 3.52
Replies: 49
Views: 35658

Re: DSO firmware version 3.5

Ben, thanks a million for the upgrade, but is there something funky going on with the ground position?

A signal that I measured before as having no DC component now has a significant offset.

(and downgrading returns the signal to the expected state).

Maybe I just need to recalibrate?
by campbellm254
Sat Jan 22, 2011 12:31 am
Forum: DSO
Topic: Max CN1 input Voltages (both + and - )
Replies: 17
Views: 13360

Re: Max CN1 input Voltages (both + and - )

Ah right. I misunderstood you.

Thank you for clarifying that for me.
by campbellm254
Fri Jan 21, 2011 8:25 pm
Forum: DSO
Topic: DSO firmware version 3.43
Replies: 43
Views: 36282

Re: DSO firmware version 3.43

Will I be able to use the DSO Nano V2 to analyse 100kbps I2C? I imagine that 400kbps I2C would be beyond the DSO Nano's capabilities (I seem to recall an HP document suggesting that you need something like 5 times the sample rate as the bit rate you are trying to measure to get reasonable fidelity ...
by campbellm254
Fri Jan 21, 2011 8:22 pm
Forum: DSO
Topic: Will I be able to use the DSO Nano V2 to analyse 100kbps I2C
Replies: 1
Views: 2571

Will I be able to use the DSO Nano V2 to analyse 100kbps I2C

Will I be able to use the DSO Nano V2 to analyse 100kbps I2C? I imagine that 400kbps I2C would be beyond the DSO Nano's capabilities (I seem to recall an HP document suggesting that you need something like 5 times the sample rate as the bit rate you are trying to measure to get reasonable fidelity ...
by campbellm254
Fri Jan 21, 2011 6:32 pm
Forum: DSO
Topic: Max CN1 input Voltages (both + and - )
Replies: 17
Views: 13360

Re: Max CN1 input Voltages (both + and - )

You should be able to move Gnd Pos anywhere you like as long as you don't push trigger level (+/- sensitivity) off the screen at the same time.
Ben, I am unable to do this and would like to. Gnd Pos is firmly locked inside the visible screen. Am I missing something to enable it?
by campbellm254
Tue Jan 18, 2011 4:40 pm
Forum: DSO
Topic: DSO Nano V2 - working correctly?
Replies: 3
Views: 2393

Re: DSO Nano V2 - working correctly?

I can't tell 100% from your images. The disconnected image *might* be normal, depending on your settings. My Nano does show some noise at the most sensitive settings, as do all scopes. There is glare in your photos obscuring the settings. We'll do much better if you post BMP's directly from the Nano...