Author Topic: EEVblog #978 - Keysight 1000X Hacking  (Read 123301 times)

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Online Bud

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Re: EEVblog #978 - Keysight 1000X Hacking
« Reply #575 on: February 07, 2019, 08:37:30 am »
External trigger area, mysterious(no one measured it) cap under LMV7219

Is it on the other side of the PCB ?
 

Online Bud

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Re: EEVblog #978 - Keysight 1000X Hacking
« Reply #576 on: February 07, 2019, 09:02:40 am »
I looks like it is possible to add LAN option.  :popcorn:
Code: [Select]

LaunchInfiniiVision:
BLT Module Config 03 - UNKNOWN
=========================================
BLT Product Config 24
   Bandwidth   : 200MHz
   #Channel    : 2
   Board Rev   : FPR
   Clk Gating  : Baldwin
   Sample Rate : 4GSa
   LAN PHY     : Yes
Can you share details of this mod?
 

Offline FERCSA

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Re: EEVblog #978 - Keysight 1000X Hacking
« Reply #577 on: February 07, 2019, 10:17:33 am »
External trigger area, mysterious(no one measured it) cap under LMV7219

Is it on the other side of the PCB ?

Nope. Same side as most of the mods. Just look for U9 on this picture:
https://www.fercsa.com/keysight/trigger_mod_before.jpg
Then top-right, there is a 10nF cap. I used 10nF, because I already had one. Others used a 33nF cap, so that could be good too.

I looks like it is possible to add LAN option.  :popcorn:
Code: [Select]

LaunchInfiniiVision:
BLT Module Config 03 - UNKNOWN
=========================================
BLT Product Config 24
   Bandwidth   : 200MHz
   #Channel    : 2
   Board Rev   : FPR
   Clk Gating  : Baldwin
   Sample Rate : 4GSa
   LAN PHY     : Yes
Can you share details of this mod?

I didn't make this mod, but you'll need a LAN8700C chip and just connect it to the unpopulated connector on the BLT module.
U-boot supports other chips like Microsemi (ex-Vitesse) VSC8641 and one from National, but I don't remember the exact part number.

I tried a cheap usb-lan adapter too, it had WinCE driver, but when I loaded this driver nothing happened. Probably there is a missing network related component or registry entry. It would be fun to solve this, because I successfully run a gdb server on this scope before, but I was not able to make a connection through serial.
Don't ask. I'm the same guy who gave you ultra fast internet in the '00s..
#FERCSA
 
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Offline hv222

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Re: EEVblog #978 - Keysight 1000X Hacking
« Reply #578 on: February 07, 2019, 08:38:53 pm »
I looks like it is possible to add LAN option.  :popcorn:
Code: [Select]

LaunchInfiniiVision:
BLT Module Config 03 - UNKNOWN
=========================================
BLT Product Config 24
   Bandwidth   : 200MHz
   #Channel    : 2
   Board Rev   : FPR
   Clk Gating  : Baldwin
   Sample Rate : 4GSa
   LAN PHY     : Yes
Can you share details of this mod?


It needs some PCB with LAN8700C. Schematic is same like this: http://ww1.microchip.com/downloads/en/DeviceDoc/evb8700_mii_sch.pdf to configure LAN8700C pins RXD0, RXD1, RXD2 and RXD3 require 10kOhm pull down resistor to GND.PHY is connected with processor board on unsoldered connector I don't used 100om resistors. I'm not sure if I mark pin 1 correctly. Check ground pins location.
You also need to modify memory U701. MAC is located in this flash at address 0x070000 to 0x070005 (6 bajts).Mac is not programmed by default - it value is 0xff 0xff 0xff 0xff 0xff 0xff.  I got access to flash via FT2232 chip and software SPI FTDI programmer (flash was extracted from board). However this hack not give me too much. It was possible to connect with scope via telnet, but hacks knowed from 2000x and 3000x was not working.
 

Online Bud

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Re: EEVblog #978 - Keysight 1000X Hacking
« Reply #579 on: February 08, 2019, 03:24:25 am »
Thank you hv222. Did you try if Keysight software works with the added LAN?
 

Offline hv222

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Re: EEVblog #978 - Keysight 1000X Hacking
« Reply #580 on: February 08, 2019, 03:36:42 am »
It detects scope, but I don't play with it.
 
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Online Bud

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Re: EEVblog #978 - Keysight 1000X Hacking
« Reply #581 on: February 08, 2019, 05:26:43 am »
The two things that immediately bothered me with the EDUX were too bright button lights (annoyingly distracting) and loud fan. Will be looking to reduce the LED brightness first thing when disassemble the scope. Has anyone found a nicer replacement fan model ?
 

Online Bud

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Re: EEVblog #978 - Keysight 1000X Hacking
« Reply #582 on: February 11, 2019, 02:12:00 pm »
...
And here is some picture:



Are the resistors 0805 or 0603 ?
 

Offline hv222

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Re: EEVblog #978 - Keysight 1000X Hacking
« Reply #583 on: February 11, 2019, 07:40:29 pm »
0603. It's just for USB signal conditioning. Only option to make it useful is put uart to USB bridge and connect it to scope uart for debugging purpose.
 

Offline FERCSA

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Re: EEVblog #978 - Keysight 1000X Hacking
« Reply #584 on: February 12, 2019, 05:54:55 am »
The two things that immediately bothered me with the EDUX were too bright button lights (annoyingly distracting) and loud fan. Will be looking to reduce the LED brightness first thing when disassemble the scope. Has anyone found a nicer replacement fan model ?

You can try those rubber fan mounts. It helps a little. I found a few in my old PC.
As hv222 said they're 0603 components. I used an USB2514 chip, which has 4 ports, so my usb-serial and jtag is always connected if I need them.

Btw you got the G version or the none G?
Don't ask. I'm the same guy who gave you ultra fast internet in the '00s..
#FERCSA
 

Online Bud

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Re: EEVblog #978 - Keysight 1000X Hacking
« Reply #585 on: February 12, 2019, 06:05:56 am »
It is an A, non-G one
 


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