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Siglent SDG1000 (aka LeCroy WaveStation) firmware updates
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commongrounder:
I received a response from Siglent about the log sweep function:

Dear sir,
 
Sorry for the delayed reply.
We have confirmed the log sweep function with others singal generator.
Yes, we are different from them.  We decided fixing it in the next firmware.
 
I imagine it could be possible to have several types of sweeps available.
It would be even more exciting if one could create a custom sweep envelope just as arbitrary waveforms are created(this is quoted from my email).
 
Obviously, we will add more sweep mode in the future, but it will take some time.
 
Best Regards,
Jie

Needless to say, I am pleased.
DONW:
Does anyone have a high-res scan of the top and bottom of the board out of a 1010 or a 1025?

I've checked my 1005 board thoroughly, and it doesn't look like there's an eeprom anywhere - and the instrument behaves like it has no nvram, after a power cycle, you end up back at 1mhz sine wave, with no channels on.

That makes me suspect that the model configuration is via 0-ohm jumpers, or perhaps an ADC reading the values of some resistors, most likely very close to the blackfin cpu.

So, if anyone has a scan (i've seen a few photos, but none with enough resolution around the cpu), I could compare to my 1005, and see if I'm onto something here.

Thanks!
nctnico:
Every digitally controlled function generator starts with the outputs off and usually with default settings. If you want to keep the settings, you need to save them to memory and recall when needed.
rf-loop:

--- Quote from: DONW on July 06, 2013, 01:15:57 am ---Does anyone have a high-res scan of the top and bottom of the board out of a 1010 or a 1025?

I've checked my 1005 board thoroughly, and it doesn't look like there's an eeprom anywhere - and the instrument behaves like it has no nvram, after a power cycle, you end up back at 1mhz sine wave, with no channels on.

That makes me suspect that the model configuration is via 0-ohm jumpers, or perhaps an ADC reading the values of some resistors, most likely very close to the blackfin cpu.

So, if anyone has a scan (i've seen a few photos, but none with enough resolution around the cpu), I could compare to my 1005, and see if I'm onto something here.

Thanks!

--- End quote ---

In menu you can select if unit start from last state or factory default. But outputs need always  manually turn on after new start. 


If start up with last setting is selected, please wait short time after any settings changes before shut off. (it save settings periodically but I do not remember exactly this period time, perhaps 3 second or something like this)

Of course you can also save your own settings to  internal (or external) non volatile memory and call them as you want. (10 setups to internal memory and same for your own Arb waveforms)

There is well enough non volatile memory for keep settings and also your own waveforms and also self cal (and factory cal) data. 

If it is set for last state startup outputs starts off state independent of what was state when turn generator off. This is for safety. User is responsible what he connet to his external circuits.

Example, if you have forget what was last state or you have forget it to start with default but last time you used it for for test where maximum level is ecample 50mV and then come short power drop out. and after second power up. Now your circuit get 4V and after smoke you check what all you need repair. It is most safe to keep output off after power up until user turn output on.

You do not need find memories from circuit photograps or with your eyes from board. They can find in SDG menu system and also user manual may help some (but user manual is poor with these things. Some things there is well explained but some things just poor or totally lack of detailed information.
DONW:
Guys, my intent here was to hack the model number, not to somehow store settings.  There's a number of discretes missing around the CPU of my instrument, and in the photos I've seen of the 1010 board here http://sigrok.org/wiki/Siglent_SDG1010, there seem to be components on those pads where mine has none.

I'm guessing that this may be how Siglent set the model number in the factory, as I doubt there are hardware differences between the 1005 and 1010.
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