RE: SDK11: Error 4 when calling ble_dfu_init()

Vidar Berg — Wed, 19 Oct 2016 11:50:10 GMT

att table size is adjusted by setting the .gatts_enable_params.attr_tab_size variable in the ble_enable_params_t struct.

RE: SDK11: Error 4 when calling ble_dfu_init()

sarah_sdw — Wed, 19 Oct 2016 11:46:46 GMT

I've tried to increase the size of task stack.. but no effet

I don't understand what the GATT table, where can i increase it ?

RE: SDK11: Error 4 when calling ble_dfu_init()

Vidar Berg — Tue, 18 Oct 2016 08:37:12 GMT

The new softdevices support dynamic RAM allocation, which means that you need to allocate more RAM memory if you add additional services to the examples. This is described in more detail in the migration document included with the softdevice.

In addition to increasing the size of the GATT table (might not be required) you also need to increase the UUID buffer count by increasing the .vs_uuid_count to the number of UUIDs you are using.

E.g.,

ble_enable_params_t ble_enable_params;

err_code = softdevice_enable_get_default_config(CENTRAL_LINK_COUNT,    
                                                PERIPHERAL_LINK_COUNT,
                                                &ble_enable_params);

APP_ERROR_CHECK(err_code);

ble_enable_params.common_enable_params.vs_uuid_count = NUMBER OF UUIDs;

Note that sd_ble_enable returns the app RAM base that should be used with current configuration.

Update:

Have you tried to increase the size of the GATT table as well?