The nrfjprog can only be used in Keil ?

[haunglru]

If we would like to use the nrfjprog.exe in IAR , how is it used ?

[haunglru]

Thank you

So we can flash the softdevice and application from IAR using the Segger J-link without any setting?

[Ole Morten]

Perhaps I misunderstood you. If you want to sue nrfjprog to program a softdevice, this is completely independent of the IDE you use. nrfjprog should work the same, no matter if Keil or IAR is used. However, for downloading an application while developing in an IDE, I'd recommend you to not use nrfjprog, neither from IAR nor from Keil, as using the built-in J-Link support gives a nicer user experience.