NO MEM when setting 18 links

[asaf]

HI

I having issue when setting 18 BLE links using s140.

I set the ram size as suggested but still getting error.

<debug> nrf_sdh: State request: 0x00000000
<debug> nrf_sdh: Notify observer 0x0004AA80 => ready
<debug> nrf_sdh: State change: 0x00000000
<debug> nrf_sdh: State change: 0x00000001
<debug> nrf_sdh_ble: RAM starts at 0x20012120
<error> nrf_sdh_ble: sd_ble_enable() returned NRF_ERROR_NO_MEM.

memory suggested : 

RAM_START=0x20012120;RAM_SIZE=0x2DEE0

I'm on 90% RAM usage and my application dosn't use dynamic allocation so I have 16KB spare from heap.

[Sigurd]

Hi,

RAM_START=0x20012120

From the sd_ble_enable docs:

NRF_ERROR_NO_MEM:

Dynamic part of the SoftDevice RAM region is larger then 64 kB which is currently not supported.

You are using ~72kB of RAM with this configuration. 

To lower the RAM requirements, and still have support for this numbers of link, you can e.g. in sdk_config.h reduce NRF_SDH_BLE_GAP_DATA_LENGTH or NRF_SDH_BLE_GATT_MAX_MTU_SIZE