I also have recently purchased a Siglent SDS1104-E 4 channel scope. What I am interested in is hacking the AWG function and more so, the 16 channel logic analyzer function.
At one 1GS/s I do not expect much for any ability to increase bandwidth
The AWG connects through a USB 3.0 connector and the Logic analyzer connects through what is called an SBUS. Sun developed the SBUS, except Singlent is using a unique type of connector. I looked at it it has 19 pins pins and an outer ground.
My thinking is find that type of connector. I remember Digi-key has a section for connectors that fills maybe a dozen pages. If it exists there is a way to find it. then do a DIY module for it. The DIY part is because it would just be fun for me to put together.
My thinking continues that with an activation hack, and the correct connector, the signals could be analyzed to create the correct pin-out, and since logic is simply high/low the box could not be that difficult.
RE: the AWG. it uses the USB connection...and it is only 25MHz so how hard can that be?
NOTE that:
I have two of them, so with some help I can explore and how to do this, since bricking up one, no big deal for me since I can use the other.
If, I need to look into the firmware and the code. I know didly, but with some help I can access it, download it, and put it out there.
IF, there is no way this can be done. I will at some point purchase the logic analyzer adapter. right now, the product is too new, and both the pricing and availability is too much and questionable capability about the performance.