Unexplained large increase in RAM requirement when increasing existing characteristic lengthhttps://devzone.nordicsemi.com/f/nordic-q-a/39353/unexplained-large-increase-in-ram-requirement-when-increasing-existing-characteristic-lengthI am wanting to increase the length of one of my characteristics used when my device is acting as a peripheral. When I increase the size of my characteristic, the softdevice requires a large amount of extra RAM (more RAM than I can spare) but if I removeen-USTelligent Community 13Mon, 15 Oct 2018 09:21:22 GMTRE: Unexplained large increase in RAM requirement when increasing existing characteristic lengthhttps://devzone.nordicsemi.com/thread/152825?ContentTypeID=1Mon, 15 Oct 2018 09:21:22 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c2cb8547-0d98-4f0f-bbe1-7459d07a4a64Sigurd<p><span>Hi,</span></p> <p><span>The function <em>sd_ble_enable</em>()/ <em>nrf_sdh_ble_enable</em>() will tell you how much RAM is required to enable the SoftDevice with the current SD configuration. If you enable the SD, starts to add characteristic/services, and then get the error-code &ldquo;</span>NRF_ERROR_NO_MEM&nbsp;&ldquo;, then the SD configuration need to be changed. <span>I suspect that you might need to increase the Attribute Table size. (<em>NRF_SDH_BLE_GATTS_ATTR_TAB_SIZE</em> in sdk_config.h).</span></p><div style="clear:both;"></div>