Sure, probably a later revision of the board, to avoid noise or enhance signal integrity.
https://www.eevblog.com/forum/testgear/new-hantek-dso2x1x-models/msg3434052/#msg3434052Mine also does have them.
I updated the overclocking script, now it allows to fully customize PLL N/K/M parameters.
There's a new test mode that loads the script from the usb drive, so you can try anything without fear, if there's no drive, there's no overclock.
When you find a stable overlock, then run the permanent installer, and it will load automatically from the internal memory.
I also made a fix for the platform-tools 20210517 version. The usb problem is purely caused by the phoenix app.
Replacing it with the previous version (Phoenix-20210416) completely fixes the issue. You can also run the 20210416 update.
I used it in my FW3000 scope, worked perfectly
- Install platform tools 20210517. Don't worry about the usb issue, it will start working when you hit Utility/Update few times.
- Install usb fix (Phoenix-20210416 mod package)
- Install Backup-CNxxxxxxxxxx.upk (Read above).
I also modified backup builder. Now generates two files:
- dso3kb_CNxxx.upk: Restores Model, Serial, HW, FW, Generator calibration, but skips dso, preserving the existing dso software.
- dso3kb_CNxxx_FULL.upk: Restores Model, Serial, HW, FW, Generator calibration and dso, overwriting the existing dso software, almost like restoring the original system.