https://devzone.nordicsemi.com/f/nordic-q-a/90406/limitation-on-maximum-characteristics-and-services-when-in-hci-modeHi, My project is a host micro (STM32) and a nRF52840 (controller mode) to implement a peripheral. My previous project (STM32 BLUENRG-M0 and host micro, HCI SPI interface) was abandoned due to a maximum 700 byte size limit for GATT services and characteristicsen-USTelligent Community 13Fri, 29 Jul 2022 08:35:16 GMThttps://devzone.nordicsemi.com/thread/379256?ContentTypeID=1Fri, 29 Jul 2022 08:35:16 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fd7bc169-4dd2-4606-8c8d-221020187c4adejans<p>Hi,<br /><br />GATT is the host feature. The controller is not aware of GATT.&nbsp;<br /><br />Best regards,<br />Dejan</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/379173?ContentTypeID=1Thu, 28 Jul 2022 15:50:44 GMT137ad170-7792-4731-bb38-c0d22fbe4515:53bc5bb1-761c-4818-934a-dd999cbf22d1Martin Rev<p>Thank you @dejans.</p> <p>Are these changes to make in the Host build or the Controller build? Or both?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/378969?ContentTypeID=1Wed, 27 Jul 2022 15:30:30 GMT137ad170-7792-4731-bb38-c0d22fbe4515:65f50960-f316-488b-8c94-9b4a91bed73cdejans<p>Hi,<br /><br />BT_GATT_POOL_INIT is specified in the&nbsp;<a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/libraries/bluetooth_services/gatt_pool.html?%20service%20size%20limit#api-documentation">API</a>&nbsp;documentation for&nbsp;<a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/libraries/bluetooth_services/gatt_pool.html#bluetooth-gatt-attribute-pools">GATT attribute pools</a>&nbsp;and defined in&nbsp;<a href="https://github.com/nrfconnect/sdk-nrf/blob/main/include/bluetooth/gatt_pool.h#L31">gatt_pool.h</a>.<br /><br />Best regards,<br />Dejan</p><div style="clear:both;"></div>