ESB radio maximum channel number?

RE: ESB radio maximum channel number?

ketiljo — Fri, 09 Feb 2018 12:48:43 GMT

Please note that the channels you are allowed to use are 02 - 81. Anything below or above these will make the radio operate outside the band and is illegal in most countries.

RE: ESB radio maximum channel number?

Maikel — Fri, 09 Feb 2018 09:35:56 GMT

We have a system that's works with the gazelle protocol and we are testing the stability of the system when a channel is blocked. We are doing this with sending packets on same channel with ESB. But discoverd we can't block channels higher then 100. While our gazelle goes up to channel No. 120). Is this the same bug that we should'nt use a number above 100?but the protocol let us do it. ( in the comments in nrf_gzll.h it says " The valid channels are in the range 0 <= channel <= 125 "

We are using SDK version 14.2.0

RE: ESB radio maximum channel number?

Dom O — Tue, 20 Sep 2016 07:43:20 GMT

Thank you for the very prompt answer!

RE: ESB radio maximum channel number?

Einar Thorsrud — Tue, 20 Sep 2016 07:35:35 GMT

This is a bug, and you should not use a channel number higher than 100. Thanks for reporting it. The channel number is inserted directly into the FREQUENCY field of the FREQUENCY register in the RADIO, and this is limited to 100 on both the nRF52 and nRF51.

(As you may have seen, you can in fact set a value up to 125, but it is out of spec, and should not be used).