nRF51 hardware revision 2 with SoftDevice S130?

[puz_md]

Hello everybody,

we want to extend out Central device to dual role (Central + Peripheral). I just finished the migration to SoftDevice S130 and was about to migrate the drivers and libraries to SDK 9.0.0, as specified in the compatibility matrix.

By chance, I discovered that we use a revision 2 chip on out prototype boards:

N51822 QFAAG2 1427B

According to the compatibility matrix, this is a revision 2 device. Revision 3 was not available yet at the time of production.

I have two questions:

1.) Can we use the S130 SoftDevice with this chip? Will it run stable if we don't use the DCDC converter (which had some radio related issues in revision 2), for example? We are still in a prototype stage and hope that we can continue with our current hardware.

2.) We currently use S120 v1.0.1 with SDK v7.x.x. Is it possible to use the S130 SoftDevice with an outdated SDK? I just took the S130 headers and our project compiles successfully and the software does not crash. Though, we didn't do field tests yet.

Thanks for your help!

[MartinBL]

Hi.

Please read this. The post discuss a different IC revision, SDK and Softdevice, but the final answer is the same.

[puz_md]

Hi Martin, thanks for the link. But one part of my question was not answered: Is it possible to use an outdated SDK (drivers and libraries) with a more recent SoftDevice? Or have the interface definitions of the SoftDevices changed over time in a way that does not cause an error at compile time?