We need to do some crypto. The first task being to generate a random number with rng. I have been fighting through the sdk_config.h defines, and the list of modules that need to be added to our build for the nRF52840 and ended up with a module that gets to the cc310_backend_rng.c, calls CRYS_RndInit and simply reboots.
So I go to the example in nrf5_sdk\examples\crypto\nrf_crypto\rng. That won't build on IAR, it ends up with a build error:
Error[Lt009]: Inconsistent wchar_t size
ssi_aes.c.obj(libnrf_cc310_0.9.13.a) and 64 other objects in libnrf_cc310_0.9.13.a have wchar_t size 16 bits
aes.o and 187 other objects, some of them in dl7M_tlf.a and 13 other libraries have wchar_t size 32 bits
Is there a document somewhere that explains "getting started with RNG on the nRF82840"? What RNG backend should I be using? Which defines should I be setting? What source is required?
Were using IAR 8.50.9.33462, nRF5 Software Development Kit v17.1.0, and a custom board with a MAXQ1065.
