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2 nanosecond o-scope GET! - Adventures in Engineering
The wanderings of a modern ronin.

Ben Cantrick
  Date: 2010-04-06 17:58
  Subject:   2 nanosecond o-scope GET!
  Music:Weird Al - White & Nerdy

So you may remember that I ordered a Rigol 50 MHz oscilloscope, with the hope that it would be one of the older models, which can be trivially software modified to become a 100 MHz scope.

For the record: I ordered my scope from TEquipment.net on Wednesday 3/31. I was dumb and did the 3-5 day shipping, which meant it actually took a full on calendar week to deliver and also no tracking number. As your lawyer, I recommend you throw down for the 2-day shipping, which will get you a tracking number and probably also get you the scope the same week you order it.

The scope was delivered yesterday evening. Here I am opening the box.

"For DS1000E Series, V02.02". That's encouraging - 2.02 is the moddable firmware. Of course, just because the docs packet is v2.02 doesn't mean the actual scope firmware is v2.02...

I can't seem to connect to the scope's serial port to do the hack. Is this serial cable a crossover? Well, I have a good quality digital scope now, let's probe the cable and find out.

Sure enough! That's a very nice 9600 baud "A". Shame it's being sent on THE WRONG FREAKIN' PIN!

Cross me and yer gonna get double-crossed!

Awwwwwwwwwwww Je-Yeah! The front panel says "DS-1052E (50 MHz)" but the scope knows that, deep down inside, it's actually a "DS-1102E (100 MHz)". Also, the timebase now goes as fast as 2ns!

Here we see the scope catching 60 Hz power line noise, right out of the air. Woo!

So, I now have a scope that is capable of real-time snooping on DDR-400 memory. Probably the best $500 I've ever spent, actually...
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Jon: mariohammer
  User: j_b
  Date: 2010-04-07 17:04 (UTC)
  Subject:   (no subject)
Nice hack, congrats!

How's Jaron's book?
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Ben Cantrick
  User: mackys
  Date: 2010-04-07 20:17 (UTC)
  Subject:   (no subject)
Haven't had time to read past the first chapter. Frankly, it feels like a lot of "HEY YOU KIDS, GET OFF MY LAWN!!" so far.
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May 2015