hump in both modulation and CW mode when continuous transmit(bandedge test)

RE: hump in both modulation and CW mode when continuous transmit(bandedge test)

ketiljo — Fri, 17 Sep 2021 13:50:12 GMT

Hi Damian

Can you attach the code here please?

Can you check how it looks like if you program it with this hex file? devzone.nordicsemi.com/.../nrf52_5F00_unmod_5F00_ch40.hex

cheers,

Ketil

Damian Gai — Fri, 17 Sep 2021 13:35:08 GMT

Really appreciate for you answer.

We check with our SW engineer. They already applied this.

So is there any other possible reason?

ketiljo — Wed, 15 Sep 2021 11:07:14 GMT

You probably don't have the cache enabled. Without this, there will be more flash activity and this will affect the carrier.

Call this in your init routine:

NRF_NVMC->ICACHECNF = (NVMC_ICACHECNF_CACHEEN_Enabled << NVMC_ICACHECNF_CACHEEN_Pos) & NVMC_ICACHECNF_CACHEEN_Msk;