Archiving high throughput with IPSPhttps://devzone.nordicsemi.com/f/nordic-q-a/66616/archiving-high-throughput-with-ipspHi, I have a set up consisting of an nRF52840 and Raspberry Pi communicating over IPSP following the zephyr OS sample docs.zephyrproject.org/.../README.html My application running on the nRF52840 needs to stream data with ~50Kbit/s. Unfortunately, I geten-USTelligent Community 13Fri, 02 Oct 2020 12:49:08 GMTRE: Archiving high throughput with IPSPhttps://devzone.nordicsemi.com/thread/272736?ContentTypeID=1Fri, 02 Oct 2020 12:49:08 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8f4ac7f9-1a8d-4e41-86ca-418deaa4decfStefanHri<p>Hi</p> <p>I managed to solve it with these configurations on the device side:</p> <p><pre class="ui-code" data-mode="text">CONFIG_BT=y CONFIG_BT_DEBUG_LOG=n CONFIG_BT_SMP=y CONFIG_BT_PERIPHERAL=y CONFIG_BT_CENTRAL=y CONFIG_BT_L2CAP_DYNAMIC_CHANNEL=y CONFIG_BT_CTLR_DATA_LENGTH_CLEAR=y CONFIG_BT_CTLR_DATA_LENGTH_MAX=251 CONFIG_BT_DEVICE_NAME=&quot;test-dev&quot; CONFIG_BT_DATA_LEN_UPDATE=y CONFIG_BT_AUTO_DATA_LEN_UPDATE=y CONFIG_BT_PERIPHERAL_PREF_MAX_INT=7 CONFIG_BT_PERIPHERAL_PREF_MIN_INT=6 CONFIG_BT_CTLR_PHY_2M=y CONFIG_BT_RX_BUF_LEN=255 CONFIG_BT_GATT_CLIENT=y CONFIG_BT_ATT_TX_MAX=10 CONFIG_BT_ATT_PREPARE_COUNT=2 CONFIG_BT_CONN_TX_MAX=10 CONFIG_BT_L2CAP_TX_BUF_COUNT=10 CONFIG_BT_L2CAP_TX_MTU=2000 CONFIG_BT_L2CAP_RX_MTU=2000 CONFIG_BT_CTLR_RX_BUFFERS=2 CONFIG_BT_CTLR_TX_BUFFERS=10 CONFIG_BT_CTLR_TX_BUFFER_SIZE=251 CONFIG_BT_DEBUG_L2CAP=y CONFIG_BT_EATT=y CONFIG_BT_EATT_RX_MTU=519</pre></p> <p>and seting the connection event intervals on the Raspberry in:</p> <p><pre class="ui-code" data-mode="text">/sys/kernel/debug/bluetooth/hci0/conn_max_interval to 7 /sys/kernel/debug/bluetooth/hci0/conn_min_interval to 6 </pre></p><div style="clear:both;"></div>RE: Archiving high throughput with IPSPhttps://devzone.nordicsemi.com/thread/272729?ContentTypeID=1Fri, 02 Oct 2020 12:37:40 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5db964a6-341a-448f-926a-9a4e24e34582Sigurd<p>Hi,</p> <p>Try setting these:</p> <p><pre class="ui-code" data-mode="text">CONFIG_BT_RX_BUF_LEN=255 CONFIG_BT_GATT_CLIENT=y CONFIG_BT_ATT_TX_MAX=10 CONFIG_BT_ATT_PREPARE_COUNT=2 CONFIG_BT_CONN_TX_MAX=10 CONFIG_BT_L2CAP_TX_BUF_COUNT=10 CONFIG_BT_L2CAP_TX_MTU=247 CONFIG_BT_L2CAP_RX_MTU=247 CONFIG_BT_L2CAP_DYNAMIC_CHANNEL=y CONFIG_BT_CTLR_PHY_2M=y CONFIG_BT_CTLR_RX_BUFFERS=2 CONFIG_BT_CTLR_TX_BUFFERS=10 CONFIG_BT_CTLR_TX_BUFFER_SIZE=251 CONFIG_BT_CTLR_DATA_LENGTH_MAX=251</pre></p> <p>And see if that helps. If that does not solve the problem, let me know what version/branch/commit/tag you are working on.</p><div style="clear:both;"></div>