I guess I'm not following everything here, has a key been generated that works on an A model yet?
Also, does anyone know HOW the keyboard connects to the blackfin, what pins/registers/interface?
[My ds4k have the same strapping as in the picture and the scope reports extended HW version number: 0.1.2.3 (same access to extended info as on a ds2k).
This corresponds to the straps at the top "xx.xx" being 01.10 (1.2) and the strap field below being 011 (.3) .
Not sure if the singel "ch" strap is the first digit (0.), but it would not be surprising.
Makes me wonder if "ch" relates to the number of scope channels.
Someone with a two channel DS4000 might want to report what number they have.
A little while ago it was reported that the 500uV range, whilst possible to enable, doesn't in fact work on the DS1000Z series. Has anything further been discovered about this, or has it been decided that it is a hardware limit?
but according to recent finds, one should think that is matter of minutes if just someone do an jtag dump of an A serie..
I'm definately going for the A(with s), but 100 or 200... that's the question..
but I also read about unlocking it to 300, but the bw filter menu won't show that setting, it seems
but I also read about unlocking it to 300, but the bw filter menu won't show that setting, it seemsIt's not supposed to. BW limit filters in scopes are low pass filters you can activate to reduce the full BW of the scope. Without BW limit activated, you get the full specified BW of the scope so there should be no 300 MHz option on a 300 MHz model, just like there's no 200 MHz option on a 200 MHz model or a 100 MHz option on a 100 MHz model. You'll only see selected BW options below the scopes full BW.
@AndersAnd: ahh, thank you, I misunderstood that then
so if a 100 MHz DSO is unlocked to 300, 200/100 and 20 should appear?
Works fine with ds2072 (non a) and hardware 2.0.
Model: DS2302
SW: 00.02.01.00.03
HW: 1.0.2.0.2
FPGA: SPU 03.01.09 / WPU 00.07.01 / CCU 12.29.00 / MCU 02.12
Note:
Need uninstall the old key with ultra sigma.
Option: DSHH + rigen 2b1
Protocol analysis CAN: ok
300MHz BW: ok
BW limit: OFF - 20M - 100MIf the bandwidth is 300MHz, shouldn't the BW limit menu options be: OFF - 20MHz - 100MHz - 200MHz?
Is the bandwidth actually still 200MHZ and not 300MHz?
Never mind...
The DS2000A User's Guide, page 2-3 says:
"Enable bandwidth limit and limit the bandwidth to 20 MHz or 100 MHz (only applicable to 200 MHz and 300 MHz oscilloscopes), the high frequency components that exceed 20 MHz or 100 MHz are attenuated."
The v.2 FW does NOT have a 200MHz bandwidth limit switch for the channels (as evidenced by the DS2000A User Manual) - so it's correct that the option does not appear in the menus.
Yeah, but I thougt the issue is that if you get an 2072, hack it to be an 2302, do you then get 100 and 200 as options in that list?
This has already been mentioned a couple of times recently in this topic:
To sum up:
There is no distinction between 'non-A' and 'A' firmware - Rigol has intended for the latest version to work on all models. So feel free to upgrade and downgrade at will - but, because of changes to FRAM, it's best to do it only with the bootloader - and after switching between the major versions (v.1 to v.2 - or - v.2 to v.1), it's best to hold in the left-menu F6 button on the first boot after loading - or the DSO can hang when switching between various menu items.
The new v.2 FW (unlike older versions) was written to work completely correctly with a 300MHz bandwidth (which is why the 1ns/div TB works fine), so you can be assured that if it's activated, it's working correctly - unless there is something the FW does with the LMH6518 chip specifically to inhibit it on non-A models.
The v.2 FW does NOT have a 200MHz bandwidth limit switch for the channels (as evidenced by the DS2000A User Manual) - so it's correct that the option does not appear in the menus.
As AndersAnd mentioned, there has yet to be a key found for the A-model - and as far as I know, no A-model owner has attempted to just downgrade to a v.1 firmware, run the keygen, and then upgrade back to v.2 (not sure why).
Any idea why they dropped the 200M bandwidth limit?
Maybe I confused myself with this and the earlier talk about the LMH6518, I thought that one was not beeing changed on the hacked models, or is that something else or ?
Maybe I confused myself with this and the earlier talk about the LMH6518, I thought that one was not beeing changed on the hacked models, or is that something else or ?
The LMH6518 is the input amplifier IC that can receive commands from the firmware to change both input attenuation and bandwidth. What commands are available to be sent to this chip by the user interface/firmware is the subject of the hacking efforts.