nRF51822 beacon kit - programming and detecting

[Dan]

I have the nRF51822 beacon kit, using Keil uVision, downloaded the beacon app and all associated files. Compiles, but how to program the beacon board?

I've done two things: Thing 1: I have connected a programming cable between my NRF52-DK board and the beacon (using the 10 pin "Debug Out" connector). Using nRFgo Studio, I erased the device, then "program softdevice", then "program application" without error. I think it is really programming the NRF52-DK (NOT my beacon target board).

Thing 2: Plugged in a nRF51-Dongle and programmed this the same way as above, again with no errors.

Now, I am trying to use the iPhone app "nRF Beacons" to detect my beacons, and I get nothing.

In "thing 1" above how do I use the nRF52-DK to program the beacon board? in both things above, why doesn't the iPhone app detect my beacon? Is there another app that I can use that will sniff them out?

Thanks in advance - Dan

[Stefan Birnir Sverrisson]

Hi

Try to use nRF Connect app instead of nRF Beacon app. The nRF Beacon app may not detect the default beacon. Make sure you flash S110/S130 softdevice and a compatible application, since there is nRF51 on board of the beacon kit. Otherwise use any softdevcice and SDK combination compatible with the nRF51.

There should be no trick to connect the beacon kit to the nRF52-DK. Just connect the beacon kit to the 10 pin connector on the nRF52-DK, marked as "Debug out" on this image, power up the beacon kit by installing a battery, and nRFgo Studio should detect the beacon board automatically. When you flash anything to the nRF52-DK it will be flashed to the beacon kit instead.

In the ble_app_beacon application in nRF5 SDK 11.0.0, make sure you define BOARD_PCA20006 (beacon kit) instead of BOARD_PCA10028 in Keil -> options for target -> C/C++ tab -> Preprocessor Symbols, to have the red LED on the beacon kit flash when advertising. Prior to flashing the ble_app_beacon application, flash the S130 2.0.1 softdevice. If it does not work, try to erase the flash content of nRF51 by pressing "Erase All" in nRFgo Studio, then flash softdevice and application.

If you wish to use the beacon firmware 1.1.1, you should only use that with softdevice S110 7.1.0/7.3.0, as shown here. Some info on how to operate and configure the beacon firmware 1.1.1 is here

[Dan]

Thank you for the reply. First, there doesn't appear to be a nRF52 development kit user's guide. So I don't know where to connect the programming cable. If I try to flash from Keil uVision, I get an error: "No Cortex-M Device found in JTAG chain. Please check the JTAG cable and the connected devices." That's with OR without the beacon board connected to the nRF52 development board. So I have been using nRFGo Studio to flash the device. Which seems to work, except as I said it does not flash the beacon connected to the nRF52 board. If I try to program the softdevice to / through the nRF52 board, it fails, whether or not the beacon is connected to it. I can only program the softdevice to the nFR51 USB dongle. The documentation is horrible. Thank you for any help.