7.x.x SDK compatibility with nRF51422 - V2 chips

[Mark Rages]

To support a mix of v2 and v3 chips, I want to use the 7.x SDK. But I'm not sure it's compatible. The matrix at infocenter.nordicsemi.com/.../nRF51_Series_Compatibility_Matrix_v2.3.pdf contains a blank space:

Is there meant to be an 7.x SDK there, or am I stuck maintaining two builds and SDK targets?

[Mark Rages]

The SVC numbers have changed between softdevices before (at least for S210 softdevice), instantly crashing if you compile with the wrong SDK.

[Mark Rages]

Can I rant about how annoying this whole mess of chip revisions, chip SDKs, softdevice SDKs, softdevice revisions is? I can go to Microchip and download an SDK that works for every PIC ever made. Same for MSP430, or Freescale. But Nordic can't even supply a single SDK that works with one chip number.

[RK]

I don't compile against the headers for the softdevice built-in to the SDK, you don't have to, it's just a convenience to make one package out of it. I compile library code from the SDK, although not much of it because I don't use much from the SDK, and the header paths for the softdevice come directly from the softdevice version I'm going to use. That ensures the SVC numbers are going to match.

The SD API is pretty stable at least, it does change slowly but usually in a way which shows up during compilation. As long as you use headers for the SD you're going to load and it compiles, it works fine.