Why am I getting INVALID_PARAM from sd_ble_gap_scan_start()?

RE: Why am I getting INVALID_PARAM from sd_ble_gap_scan_start()?

Artur — Fri, 03 Feb 2017 08:28:44 GMT

The solution was almost obvious. In my opinion, the most annoying thing in nRF MCus are SoftDevices with its compability matrix.

The solution:

get stable API (SDK10 not SDK11)
get proper SD130 (v1.0.0)
set RAM and ROM accordingly

RE: Why am I getting INVALID_PARAM from sd_ble_gap_scan_start()?

Jørgen Holmefjord — Thu, 02 Feb 2017 11:51:18 GMT

I see, it might work as the SWDIO/SWCLK inputs of the nRF chip is connected both to Debug In port and the interface MCU. You should use Debug out when programming the external chip (see page 20 of the nRF51-DK-UG).

RE: Why am I getting INVALID_PARAM from sd_ble_gap_scan_start()?

Artur — Thu, 02 Feb 2017 10:28:56 GMT

But with my DebugIn connection I was able to flash my external MCU, debug it and I have made working beacon application.

RE: Why am I getting INVALID_PARAM from sd_ble_gap_scan_start()?

Jørgen Holmefjord — Fri, 27 Jan 2017 14:12:23 GMT

You can use the RC oscillator with any board, you don't need an external crystal. Did you connect the board to the Debug In port or Debug Out? To flash the external board, you need to connect it to Debug out port, Debug in is for flashing the PCA10028 with an external debugger.

RE: Why am I getting INVALID_PARAM from sd_ble_gap_scan_start()?

Artur — Fri, 27 Jan 2017 13:56:18 GMT

Hi, This was another problem and its workaround. I have changed clock to synth because my app could not pass SOFTDEVICE_HANDLER_INIT() and I have read about this solution. I emphasize that I have another board linked to Debugin port of PCA 10028, but external clock is present there too.

RE: Why am I getting INVALID_PARAM from sd_ble_gap_scan_start()?

Jørgen Holmefjord — Fri, 27 Jan 2017 13:43:16 GMT

Hi,

How did you define the clock source? I testet this by adding your changes to the multilink central example in SDK 11, and I don't get any error codes.

Is there any reason why you want to use the synthesized LF clock instead of the RC oscillator?

Best regards,

Jørgen

RE: Why am I getting INVALID_PARAM from sd_ble_gap_scan_start()?

Artur — Fri, 27 Jan 2017 10:14:10 GMT

I am not sure because my app is straight from Keil example but I think it is written 11.0.0.

RE: Why am I getting INVALID_PARAM from sd_ble_gap_scan_start()?

Jørgen Holmefjord — Fri, 27 Jan 2017 10:03:47 GMT

Which SDK version are you using?