DSO firmware version 3.3

[tormod]

@Slimfish

in regard to a hardware indication, i’m afraid that the response is no. I’ve checked both V1 and V2 schematics and from microprocessor point of view the only differences are button B, TX/RX (which are not interconected) and BOOT0 pin. BOOT0 pin is not general I/O, so i doubt a pull-up can be activated (this could allow version identification).

Maybe RX line can be used for that purpose. As RX is driven by 74HC125, you could check the level at startup, then activate soft pull-up/pull-down. In version V1 as there is nothing conected to the pin it should reflect the change. In V2 the gate output will prevent it from changing.

I do not know if I have the official/final v1 schematics (got mine from an e-design chinese forum) but another change is that PA1 is floating on v1 while connected to PA0 (Ain) on v2. This would anyway be fragile heuristics, especially if there are intermediate versions around, or clones or changes in future versions, so I think it would be better to have a selection stored in flash of “v1” or “v2” or a more fine-grained setting like “invert Fout y/n”.