How to attach and read some registers without knowing the exact chip model

[HalfSweet]

How to attach and read some registers without knowing the exact chip model

[Yatekii]

You can just use let mut session = Session::auto_attach("<target_name>", Permissions::default()).unwrap();.

[elfmimi]

In the case of pyOCD , there is cortex_m target. which is guaranteed to be able to connect to any variant of the ARM Cortex series cores.
For probe-rs , I suppose specifying cortex-m0 can connect to other cortex-m variants such as cortex-m4 too.

But it is nice to have some sort of auto target and to be able to read/write memory and registers, for ARM and RISC-V target alike.

[HalfSweet]

Thank you very much @elfmimi for the solution, after trying it out I found that it works fine on chips with cortex-M0+/M3/M4 cores.
Do I need to disable this issue?

[elfmimi]

Let me just point out there is an exception. ( there always be. )
That is there exist kind of target which requires TARGETSEL sequence before making a connection.
The well known one is RP2040.
RP2040 cannot be connected with specifying --chip cortex-m0.