General > General Technical Chat
The Rigol DS1052E
flolic:
Did you see this link? http://www.i9t.net/fast-pulse/fast-pulse.html
This is fastest pulse generator you can easily built, imho.
And this is how I built it, supply circuit is on the other PCB:
djsb:
Hi,
I've been following this thread with interest. Can someone please summarise the steps needed to convert the DS1052E to 100Mhz?
Thanks.
David.
Simon:
--- Quote from: djsb on March 19, 2010, 06:26:42 pm ---Hi,
I've been following this thread with interest. Can someone please summarise the steps needed to convert the DS1052E to 100Mhz?
Thanks.
David.
--- End quote ---
here here, I know it's simple but I'm sure many will be in fear of screwing up their scopes if they do something wrong. I'm just off to the shops to get a cable. unfortunately the deadly maplin being the only ones to stock them, maybe it won't fall apart on me
jahonen:
Direct link to that LTC application note for your convenience: Linear Technology Application note #47, page 93.
Cyclone II FPGA LVTTL outputs are still faster, around 160 ps what I have measured from them (without any capacitive loading).
Regards,
Janne
KTP:
I'll take a stab at what I did, although I don't make any guarantee you will have success and I do not accept any liability if you choose to make these modifications to your scope. I seem to have converted my DS1052E to a DS1102E, at least it says so under the utility menu and when I send *IDN? to the RS232 port. Also my minimum time/division is now 2ns.
First I built a straight through 9 pin serial cable although I only used pins 2,3 and 5 (ground). If you want to test your cable with hyperterminal you can short pins 2 and 3 on the end not plugged into your computer and you should see what you type echoed back to you (or echoed twice if you have the autoecho thing enabled in hyperterminal).
I then read through the how to set up hyperterminal document that Rigol published.
http://www.rigol.com/upload/accessory/20102/2010221051162027445.pdf
Actually I didn't read this until I had spent 10 minutes trying to figure out why I couldn't send commands to the DS1052E..it was because I was trying to use the enter key and instead should hold down alt and press "0","1","0" ;)
I then connected the scope to the pc and ran hyperterminal setting it up exactly as in the instructions. I verified I was talking to the DS1052E by typeing *IDN? (followed by alt "0","1","0") and the scope relayed back to me the model number, serial number and firmware version. I copied this stuff down in case I wanted to go back to my original setup for some reason.
I then used the not so super secret serial command:
:INFO:MODEL DS1102E (followed by alt "0","1","0")
to write a new model number to the flash on the scope.
I then used the other serial command:
:INFO:SERIAL DS1EB104702974 (followed by alt "0","1","0")
to write a new serial number to the flash on the scope. I found this serial number on the documentation that came on the CD with the scope under programming examples. It was an example of what the output might look like when you type *IDN? on a DS1102E so I figured it would be a valid serial number :)
After this I just pressed power off and then powered back on, but other people have done a software reset through the serial port I think. I am not sure what that command is... *RST or something? When I powered back on I reconnected via RS232 and issued a *IDN? command (followed by alt "0","1","0") and it showed the Model as being DS1102E and the serial number being the new one. I checked the time/div and it now went down to 2nS. I then went to the utility menu and ran the self calibration (takes about 5 minutes and you should have everything but the power cord disconnected from the scope...also make sure the scope has been on for at least 30 minutes).
Well, that is about what I did to the best of my recollection. I don't recommend trying any of this until someone confirms my steps as I may have done it wrong. I don't see the reason for people to be smug or try and hide the information (or make vague references to how "easy" it is but not describe anything). hopefully I have been of some help.
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