Author Topic: Hantek - Tekway - DSO hack - get 200MHz bw for free (Read 2204852 times)

flodins · « **Reply #1275 on:** June 30, 2012, 01:44:20 am »

using previously attached in this thread sources and schematics my colleague and I succeeded

next step is to make xorg and desktop environment(lxde) and then make open source DSO soft, and maybe watch some Dave's video... (:

... sharing Altium files would be nice

flodins · « **Reply #1276 on:** July 01, 2012, 07:07:10 pm »

Gentoo Linux kernel: 3.5.0
Xorg
LXDE - Desktop environment
XChat - IRC client
terminal windows behind

Now we got almost everything, working on fpga configuration...

open source DSO soft will be directly for fbdev(lcd) not for xorg due to memory usage, this is quite far future but everything is going good

mightyzen · « **Reply #1277 on:** July 02, 2012, 03:47:48 pm »

Wow. This is excellent news. Great work. Many questions arise!

Do you boot into the new kernel from the existing one, or have you modified the internal flash?
Will you be setting up a github account and wiki?
What are your plans with the fpga? Create a core based on the schematics, or to try to reverse engineer the interface from the dso.exe?

Bored@Work · « **Reply #1278 on:** July 02, 2012, 03:58:48 pm »

Congratulations! And I am greatly amused.

flodins · « **Reply #1279 on:** July 02, 2012, 04:03:43 pm »

1 boot on an existing bootloader via an uart-xmodem
2 yes, everything will be on a github and I will write a wiki and a how to
3 both (: we just keep trying, probably we make an open source fpga core, (and cpld)

Gall · « **Reply #1280 on:** July 02, 2012, 04:31:09 pm »

Fine!

prpplague · « **Reply #1281 on:** July 02, 2012, 06:34:45 pm »

Nice work!

please register over at elinux.org and add your information there for the das_oszi pages we have already started:

http://www.elinux.org/Das_Oszi

we do already have barebox working as the bootloader:

https://github.com/prpplague/das_oszi_barebox

much better choice than using ViVi.....

Dave

Quote from: flodins on July 01, 2012, 07:07:10 pm

Gentoo Linux kernel: 3.5.0
Xorg
LXDE - Desktop environment
XChat - IRC client
terminal windows behind

Now we got almost everything, working on fpga configuration...

open source DSO soft will be directly for fbdev(lcd) not for xorg due to memory usage, this is quite far future but everything is going good

flodins · « **Reply #1282 on:** July 03, 2012, 04:04:18 pm »

more fun (:

SeanB · « **Reply #1283 on:** July 03, 2012, 04:17:45 pm »

Now get MythTv running on it as a client, and have a scope that can do video over an IP connection.

walt · « **Reply #1284 on:** July 04, 2012, 06:11:42 pm »

Quote from: flodins on July 03, 2012, 04:04:18 pm

more fun (:

Nice camera lens. Reminding my youth,camera Zenit-ET, photo enlarger, red light, SVEMA film...

clonecrp · « **Reply #1285 on:** July 04, 2012, 08:51:04 pm »

SeanB:

How did you accomplish thi

Do you have directions written?
Please advise..
Thanks!
Doug

pythonstar · « **Reply #1286 on:** July 04, 2012, 10:06:23 pm »

Quote from: bbf on January 27, 2012, 09:48:57 am

Hello,

I have a problem with my Tekway DST1062B - the scope hangs with white screen after running for about 30 seconds to 30 minutes. I have tried upgrading the factory firmware to version 2.06.3 (111202.0) - no change. I have not tried to hack the scope yet.

Hardware version shown is 10050x555583e8, serial number T 1G/005 003613.

Do you have any advice? Thank you!

Ivo

Late reply, but maybe it helps someone else.

I had the same problem with my scope. I noticed that the leds on the front panel was flickering. With Tinheads schematics it was easy to trace the problem down to the 3.3V bus on the PSU. Resoldered all the output stages, and then the scope was fine after that. No flickering leds and no white screen anymore.

-- R

SeanB · « **Reply #1287 on:** July 05, 2012, 05:02:49 am »

Quote from: clonecrp on July 04, 2012, 08:51:04 pm

SeanB:

How did you accomplish thi Do you have directions written?
Please advise..
Thanks!
Doug

Sorry, I like the idea of MythTV, but as i barely watch TV I just use TVtime. If you can compile VLC onto it then it will be a respectable upgrade in media capacity.

tinhead · « **Reply #1288 on:** July 08, 2012, 10:30:12 pm »

for those of you wondering about Tekway/Hantek (best) rise time :

I've posted already before some pictures from avalanch pulse generator (like EEVblog #306 - Jim Williams Pulse Generator,),
however this time some pictures with AN94 version (http://www.linear.com/docs/4183) tuned to produce ~300ps rise time
pulses with ~20ns length (see EEVblog #311 - Jim Williams Pulser Followup)

The resulting pictures from 200MHz Tekway - as expected rise time ~1.7ns.

Note - i've used external attenuator (and matched DSO scale) to get real results, when the internal DSO attenuator is enabled (2V/DIV and higher)
the measured rise time will be better by additional 300ps (so 1.3ns instead of 1.7ns).

So don't get fooled, this is coming from the overshooting internal attenuator (to improve large signal bw).
It is not recommended to change the internal attenuator calibration, with signals below 250MHz it does work perfect, so don't play with that.

walt · « **Reply #1289 on:** July 10, 2012, 04:01:11 pm »

Please press Enter to activate this console.
[root@Tekway-dso /]# umount: none busy - remounted read-only
umount: none busy - remounted read-only
The system is going down NOW !!
Sending SIGTERM to all processes.
Sending SIGKILL to all processes.
Requesting system reboot.
Restarting system.
.
arch_reset: attempting watchdog reset

***ARM CPU 400MHz BUS 100MHz (DST1000B bootloader)****(091102)

Easy lest way to unlock now is gone. When user entered DSO in console mode, watchdog resetting the system. 20 second is not enough to work in Vi-editor

.

Firmware 2.06.3(120423.0)

tinhead · « **Reply #1290 on:** July 10, 2012, 05:42:38 pm »

nothing is gone, just kill watchdog after you loged-on to console by typing:

killall dsod

walt · « **Reply #1291 on:** July 11, 2012, 01:42:14 pm »

Quote from: tinhead on July 10, 2012, 05:42:38 pm

nothing is gone, just kill watchdog after you loged-on to console by typing:

killall dsod

TNX !

jack163 · « **Reply #1292 on:** July 12, 2012, 02:18:38 pm »

Regarding DSO1102 Handheld:

Is there a limitation for SD card capacity? Is SDHC working?

Thanks in advance

jack163

tinhead · « **Reply #1293 on:** July 12, 2012, 02:55:11 pm »

no idea, i would say "ask Hantek". But generally i would say they talking already about "SD" and "2GB",
so i assume SDHC will not work.

tinhead · « **Reply #1294 on:** July 12, 2012, 03:36:49 pm »

i did said here

https://www.eevblog.com/forum/general-chat/hantek-tekway-dso-hack-get-200mhz-bw-for-free/msg119688/#msg119688

that i will post soon "patched 2.06.3_120507.6 firmware", however in the meantime i got better one.

I got 2.06.3_120625.0, which is the latest build for Tekway/Hantek/Voltcraft benchtop DSOs (not for BM/BMV models!)

Many bugs from the bug list (check link above) has been already fixed (bug nr 1,2,3,9,10,11,12,17),
i can clearly see that they working on the others (e.g. bug 4). This is really good progress!

There is a small error - while switching dual window on, the timebase value (Main windows value display) will be not updated until
you change something (in principle any control). This afaik have no influence on the firmware or functionality itself - it is
only small "refresh" error. I assume it does have something to do with the bugfix process, so i haven't added it into bug list as
"new bug".

Due size limitation in forum you have to download these 3 zip files, unzip and then unrar the resulting fw120625.rar file.
You will get then the "dst1kb_2.06.3_15202b_fact(120625.0).up" which is the firmware update file.

carloscuev · « **Reply #1295 on:** July 13, 2012, 04:26:08 am »

Thank you very much tinhead, nice to see there's still some interest from the manufacturers to get the bugs resolved

Firmware update succesful !
As for your list of bugs, I like having a USB Flash Drive always insterted to take screenshots but if it is insterted, on power up it doesn't detects it, you have to remove and insert again once booted.

Also, I noticed something I dont think it was before, while navigating between pages of the utility menu, the navigation is now 1, 2, 3, 2, 1, 2, 3, 2, ... instead of 1, 2, 3, 1, 2, 3... Is this new of I just didn't noticed before?

tinhead · « **Reply #1296 on:** July 13, 2012, 08:30:31 pm »

Quote from: carloscuev on July 13, 2012, 04:26:08 am

Also, I noticed something I dont think it was before, while navigating between pages of the utility menu, the navigation is now 1, 2, 3, 2, 1, 2, 3, 2, ... instead of 1, 2, 3, 1, 2, 3... Is this new of I just didn't noticed before?

when you click utility button it is 1,2,3,1,2,3 - and yeah when you click F6 it's 1,2,3,2,1
I honestly don't remember, but on another DSO with firmware from Nov 2011 is exact the same, so probably it
was the whole time like that.

jack163 · « **Reply #1297 on:** July 15, 2012, 08:01:14 pm »

I did some HW upgrades according to tinhead's infos on my handheld DSO1102B:

Service interface:
I used an ELV USB-TTL interface module.
The module is fixed with two screws M2.5 and two thin square nuts which are inserted in the ventilation openings in the back cover.
The plug can be reached after removing the battery cover.

Ethernet:
DM9000, H1102NL, RJ45 jack with link/traffic LED. The DM9000 is really hard to solder, "next time" I should use a hot air station.

SD-Card:
Just the card holder. By the way, I tried a 16GB SDHC and it was working fine.

jack163

tinhead · « **Reply #1298 on:** July 15, 2012, 09:03:23 pm »

Quote from: jack163 on July 15, 2012, 08:01:14 pm

I did some HW upgrades according to tinhead's infos on my handheld DSO1102B:

Service interface:
I used an ELV USB-TTL interface module.
The module is fixed with two screws M2.5 and two thin square nuts which are inserted in the ventilation openings in the back cover.
The plug can be reached after removing the battery cover.

yeah, this is nice one hack.

Quote from: jack163 on July 15, 2012, 08:01:14 pm

SD-Card:
Just the card holder. By the way, I tried a 16GB SDHC and it was working fine.

good to know, i never tested anything above 2GB

Mki · « **Reply #1299 on:** July 16, 2012, 07:35:55 am »

I just received my DSO3062C from Conrad. I needed a dirt cheap DSO for home use and 311eur with delivery was the best deal i could find. Fw is 2.06.3 and hw 10070 and still reports 1GS/s. Packaging was poor and i had doubts if the scope actually survived the trip. Well it survived all right, but was without doubt already a customer returned item, judging by the package material inside.

[Removed typical monday stupidity]

Note to self: Be sure the screen protection film is if fact entirely removed.


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