Multirole extended scanning issues.

RE: Multirole extended scanning issues.

Player777 — Fri, 28 Jun 2024 09:28:23 GMT

Oh! I see!

I thought my NRF_BLE_SCAN_BUFFER was already set to 255.

This is my mistake.Thank you for your reply.

Jared — Fri, 28 Jun 2024 08:24:29 GMT

Hi,

If sd_ble_gap_scan_start() is at line 318 in main,c and it returns NRF_ERROR_INVALID_LENGTH, then it means:

The provided buffer length is invalid. See BLE_GAP_SCAN_BUFFER_MIN.

Where BLE_GAP_SCAN_BUFFER_MIN is: #define BLE_GAP_SCAN_BUFFER_MIN (31)

What do you set the length of the buffer too in the second parameter passed to sd_ble_gap_scan_start()?

regards

Jared

Player777 — Fri, 28 Jun 2024 07:50:59 GMT

Thank you for your reply.

If I set extended = 1, the RTT viewer will report:

<error> ble_scan: sd_ble_gap_scan_start returned 0x9

<error> app: ERROR 9 [NRF_ERROR_INVALID_LENGTH] at ..\..\..\main.c:318

PC at: 0x0003A939

<error> app: End of error report

Jared — Thu, 27 Jun 2024 11:30:05 GMT

Hi,

Is there any log output that specifies the error code, can you share the call stack that shows where the program enters the error handler?

regards

Jared