Exception when use Coded PHY for connecting AND advertising with ble_app_att_mtu_throughput sample

[Lukas_Simma]

HelloI have to evaluate if we can start development with long range (coded phy). I like to see how fare away two devices can be placed to find them (long distance advertising) and then to connect and transfer data on that longer distance.

Modified ble_app_att_mtu_throughput sample to have advertising (!) and connection with Coded PHY....no success. There is an hard fault exception when sd_ble_gap_scan_start() is called.Is there a description what has to be modified on that example to use it with Coded PHY only?
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Setup: Two PCA10056 develoment board; nRF5_SDK_15.0.0; softdevice s140_nrf52_6.0.0 (contained with SDK_15.0.0); Segger Embedded Studio
See attached file for modification in main() of sample ble_app_att_mtu_throughput

a) Mod in m_test_params
    // +++ MOD LUKE CODED PHY ONLY +++
    //.phys.tx_phys             = BLE_GAP_PHY_2MBPS | BLE_GAP_PHY_1MBPS | BLE_GAP_PHY_CODED,
    .phys.tx_phys             = BLE_GAP_PHY_CODED,
    //.phys.rx_phys             = BLE_GAP_PHY_2MBPS | BLE_GAP_PHY_1MBPS | BLE_GAP_PHY_CODED,
    .phys.rx_phys             = BLE_GAP_PHY_CODED,b) Mod in m_scan_param
    // +++ MOD LUKE CODED PHY ONLY +++
    //.scan_phys     = BLE_GAP_PHY_1MBPS,
    .extended      = 1, // Luke:. ?? needed for scan_phys = BLE_GAP_PHY_CODED
    .scan_phys     = BLE_GAP_PHY_CODED,c) Mod in adv_params
        // +++ MOD LUKE CODED PHY ONLY +++
        //.primary_phy   = BLE_GAP_PHY_1MBPS, // Must be changed to connect in long range. (BLE_GAP_PHY_CODED)
        .primary_phy   = BLE_GAP_PHY_CODED,
        //.secondary_phy = BLE_GAP_PHY_1MBPS,
        .secondary_phy = BLE_GAP_PHY_CODED,Thanks,
Lukas

[MartinBL]

Hi,

I haven't had the time to debug this properly yet, but what SDK and Softdevice are you using? We have just released SDK 15 with accompanying production release of S140 v6.0.0. Have you tried it?

And are you sure it is a hard fault, and not just sd_ble_gap_scan_start() that returns an error sending your code to an error handler function?

[Lukas_Simma]

Hello

you are right. I have to resize the scan_buffer:

// static uint8_t m_scan_buffer_data[BLE_GAP_SCAN_BUFFER_MIN]; /**< buffer where advertising reports will be stored by the SoftDevice. */
static uint8_t m_scan_buffer_data[BLE_GAP_SCAN_BUFFER_EXTENDED_MAX]; // NEW: BLE5 extended Advertising ... min. 255 up to 1650 Byte

In general: I was not trained in debugging with segger embedded studio (used keil v5 in prev. projects) and i also forgot to enable "PRIMASK".

Many thanks,
Lukas