nRF52840 not advertising

RE: nRF52840 not advertising

Jared — Mon, 25 Nov 2019 12:27:55 GMT

Again, i'm still not sure exactly what you're trying to do. Could do another attempt in explaining your problem? It seems that you have designed a nRF52832 based custom board and are now trying to change the IC with a nRF52840 on the same custom board. Please verify.

RE: nRF52840 not advertising

carl hong — Fri, 22 Nov 2019 02:23:02 GMT

I've determined that it's a hardware design problem. The software is normal. Maybe it's an antenna problem

RE: nRF52840 not advertising

Jared — Thu, 21 Nov 2019 12:47:15 GMT

Hi,

Could you explain this a bit more in detail?

[quote userid="85309" url="~/f/nordic-q-a/54682/nrf52840-not-advertising"]change chip to nRF52840[/quote]

What do you mean by this? Please specify, so I can suggest a solution to the problem :)

regards

Jared

RE: nRF52840 not advertising

carl hong — Thu, 21 Nov 2019 07:27:39 GMT

I use example of "ble_app_uart", modfiy clock_lf_cfg,

NRF_SDH_CLOCK_LF_SRC 0

NRF_SDH_CLOCK_LF_RC_CTIV 16

NRF_SDH_CLOCK_LF_RC_TEMP_CTIV 2

NRF_SDH_CLOCK_LF_ACCURACY 1

RE: nRF52840 not advertising

Ameer Usman — Thu, 21 Nov 2019 07:22:11 GMT

Are you using a modified program or one of the example codes? (First I would see to check if its working in the example codes like the ble_app_beacon before moving onto your own)

RE: nRF52840 not advertising

carl hong — Thu, 21 Nov 2019 07:14:26 GMT

no APP_ERROR_CHECK issues.

RTT Viewer message:

<info> app: Debug logging for UART over RTT started
<info> app: BLE_ADV_EVT_FAST

RE: nRF52840 not advertising

Ameer Usman — Thu, 21 Nov 2019 07:05:24 GMT

Have you tried debugging it to make sure there are no APP_ERROR_CHECK issues.

Also which compile are you using.

RE: nRF52840 not advertising

carl hong — Thu, 21 Nov 2019 07:03:33 GMT

I've select PCA10056, and application program normal work,only not advertising. i erase full chip by mdk and re download softdevice the problem remains

RE: nRF52840 not advertising

Ameer Usman — Thu, 21 Nov 2019 06:53:56 GMT

The project folders for nRF52832 and nRF52840 are different (namely PCA10040 for nRF52832 and PCA10056 for nRF52840).

Make sure you have selected the correct project for each. Also try the debugger mode to exactly know where its getting stuck (if it is).

Also please mention how you are programming it and the SDK you are using.

Correct me if I am wrong, you have a custom PCB for nRF52832 and you replaced the nRF52832 chip with nRF52840?