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Reverse engineering Tektronix TDS3GV module for TDS3000 series oscilloscopes?

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buffdriver:
Hi,

This is my first post.  I've bought a TDS3012 and while awaiting delivery, I'm reading up on both the bandwidth and module hacks.  Since I won't have access to a communication module, I am interested in getting serial access via this solution.


--- Quote from: pschirrer on May 26, 2020, 03:37:11 pm ---The scope is sending data when performing a screen dump through RS232, but it is not responding to commands sent to the RS232 port (*IDN? command for example). I can see it received it (debug menu), there is no error reported, but no characters are sent (0 sent in the debug menu).

--- End quote ---


--- Quote from: pmercier on May 29, 2020, 02:26:04 pm ---I had no problems getting the IDN response on my model C, but not on my model A.

--- End quote ---

I've read through the thread several times, but I'm not sure of the current status for non-B or -C units.  Has anyone had success with getting one of these earlier scopes to respond to serial commands?

Thanks,

buffdriver

pmercier:
I have a -A and a -C. I was able to send serial command to the C version and it responded. But due to a TOO recent firmware on the A it won't answer any command at all.

av500:

--- Quote from: pmercier on May 28, 2020, 12:47:01 pm ---
24 CARD_INSERTED (5K to ground for 3GM)


--- End quote ---

same for TDS3GV which I bought just before you posted that 5K to GND value which probably is enough to fake it :/

james_s:

--- Quote from: pmercier on May 29, 2020, 02:24:30 pm ---Strange. Look like i have this problem with my 3K model A too with the latest firmware version. I cant downgrade for the moment as I have no more floppy drive :(

--- End quote ---

Isn't it just a standard PC slim floppy drive? Looks like they can be bought for a few dollars, seems like it's worth having one around if only for the ability to update the firmware.

Galen:
The drive is a slim type standard floppy drive. Not a specialized part for Tek.

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