Products > Test Equipment
Sniffing the Rigol's internal I2C bus
<< < (485/899) > >>
ZeroAviation:
@buergi

Epic first post!!!!

Cheers!
tirulerbach:

--- Quote from: battlefield on January 11, 2014, 12:51:08 pm ---Ok so I'm getting myself an JTAG cable but its not listed on that page. Mine is Olimex ARM-USB-OCD, now can someone please tell me if it will work or not?

--- End quote ---

Works. I made the dump using this one. The only caveat was the 3.3 Volt reference. The 3.3V reference on the DS2202A JTAG header was to weak for the ARM-USB-OCD. I used 3.3V from a header in the vicinity of the BNC socket:


--- Quote from: tirulerbach on December 28, 2013, 10:07:32 pm ---There is a "SPI BOOT" header oh the right side of the PCB. Pin 7 has 3.3 Volts and it works...

--- End quote ---

I didn't use any pullup resistors etc. but just connected the ARM-USB-OCD straight to the DS2202A using short (about 6cm) jump-wires and set the JTAG speed to 6 MHz. Dump took about 15 minutes. Too bad, I made no photos.
elecBlu:

--- Quote from: van-c on January 11, 2014, 07:02:53 pm ---Has it actually been verified that the HW 2 version with 300 MHz enabled does not have the overshoot and stability problems demonstrated for HW 1?  Did someone post a graph showing the HW 2 frequency response?  I have re-checked the thread but may have missed it.

--Van

--- End quote ---

did some tests but i'm not able to do a proper frequency response chart during some problems with my generator. check my older posts for details and 300MHz measurements.
andyturk:

--- Quote from: marmad on January 11, 2014, 04:53:57 pm ---Nice summary. andyturk (the OP) should copy and paste a link to this post in the first post of the thread.

--- End quote ---

Good idea. Done.
cybermaus:

--- Quote from: seronday on December 13, 2013, 12:11:50 am ---Minor correction to my previous post after some further investigation.

DSHA also enables the 500uV setting and another unknown, (at present), option.

--- End quote ---

Just a report back in case others DS1074Z users are searching for it: The unknown DSCA option does not seem to be related to the signal generator.

As I had the less common -S model I was thinking (hoping) the unknown option was related to the signal gen, which means most people would not notice its effect. So I memorized all the signal menu and inserted the option. But I found no extra menu or option afterward. (Especially I was hoping for  a SWEEP option, that is a big miss in the SG functionality)
Navigation
Message Index
Next page
Previous page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod