| CONFIG_BT=y |
| CONFIG_BT_DEBUG_LOG=n |
| CONFIG_BT_SMP=y |
| CONFIG_BT_PERIPHERAL=y |
| CONFIG_BT_DIS=y |
| CONFIG_BT_DIS_PNP=n |
| CONFIG_BT_BAS=y |
| CONFIG_BT_HRS=y |
| CONFIG_BT_DEVICE_NAME="Zephyr Heartrate Sensor" |
| CONFIG_BT_DEVICE_APPEARANCE=833 |
| |
| # Drivers and peripherals |
| CONFIG_I2C=n |
| CONFIG_WATCHDOG=n |
| CONFIG_PINCTRL=n |
| CONFIG_SPI=n |
| CONFIG_GPIO=n |
| CONFIG_SERIAL=n |
| |
| # Power management |
| CONFIG_PM=n |
| |
| # Interrupts |
| CONFIG_DYNAMIC_INTERRUPTS=n |
| CONFIG_IRQ_OFFLOAD=n |
| |
| # Memory protection |
| CONFIG_THREAD_STACK_INFO=n |
| CONFIG_THREAD_CUSTOM_DATA=n |
| CONFIG_FPU=n |
| |
| # Boot |
| CONFIG_BOOT_BANNER=n |
| CONFIG_BOOT_DELAY=0 |
| |
| # Console |
| CONFIG_CONSOLE=n |
| CONFIG_UART_CONSOLE=n |
| CONFIG_STDOUT_CONSOLE=n |
| CONFIG_PRINTK=n |
| CONFIG_EARLY_CONSOLE=n |
| |
| # Build |
| CONFIG_SIZE_OPTIMIZATIONS=y |
| |
| # ARM |
| CONFIG_ARM_MPU=n |
| |
| # In order to correctly tune the stack sizes for the threads the following |
| # Configurations can enabled to print the current use: |
| # CONFIG_THREAD_NAME=y |
| # CONFIG_THREAD_ANALYZER=y |
| # CONFIG_THREAD_ANALYZER_AUTO=y |
| # CONFIG_THREAD_ANALYZER_RUN_UNLOCKED=y |
| # CONFIG_THREAD_ANALYZER_USE_PRINTK=y |
| # CONFIG_THREAD_ANALYZER_AUTO_INTERVAL=20 |
| # CONFIG_CONSOLE=y |
| # CONFIG_UART_CONSOLE=y |
| # CONFIG_SERIAL=y |
| # CONFIG_PRINTK=y |
| |
| # Example output of thread analyzer |
| # BT RX : STACK: unused 576 usage 448 / 1024 (43 %); CPU: 0 % |
| # BT RX pri : STACK: unused 260 usage 188 / 448 (41 %); CPU: 0 % |
| # BT ECC : STACK: unused 256 usage 888 / 1144 (77 %); CPU: 1 % |
| # BT TX : STACK: unused 296 usage 344 / 640 (53 %); CPU: 0 % |
| # thread_analyzer : STACK: unused 128 usage 384 / 512 (75 %); CPU: 1 % |
| # sysworkq : STACK: unused 856 usage 168 / 1024 (16 %); CPU: 0 % |
| # logging : STACK: unused 232 usage 536 / 768 (69 %); CPU: 0 % |
| # idle 00 : STACK: unused 208 usage 48 / 256 (18 %); CPU: 97 % |
| # main : STACK: unused 576 usage 448 / 1024 (43 %); CPU: 0 % |
| CONFIG_BT_RX_STACK_SIZE=1024 |
| CONFIG_BT_CTLR_RX_PRIO_STACK_SIZE=448 |
| CONFIG_BT_HCI_TX_STACK_SIZE_WITH_PROMPT=y |
| CONFIG_BT_HCI_TX_STACK_SIZE=640 |
| CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=512 |
| CONFIG_IDLE_STACK_SIZE=128 |
| CONFIG_MAIN_STACK_SIZE=640 |
| CONFIG_ISR_STACK_SIZE=1024 |
| |
| # Disable features not needed |
| CONFIG_TIMESLICING=n |
| CONFIG_MINIMAL_LIBC_MALLOC=n |
| CONFIG_LOG=n |
| CONFIG_ASSERT=n |
| |
| # Disable Bluetooth features not needed |
| # CONFIG_BT_DEBUG_NONE=y |
| CONFIG_BT_ASSERT=n |
| CONFIG_BT_DATA_LEN_UPDATE=n |
| CONFIG_BT_PHY_UPDATE=n |
| CONFIG_BT_GATT_CACHING=n |
| CONFIG_BT_GATT_SERVICE_CHANGED=n |
| CONFIG_BT_GAP_PERIPHERAL_PREF_PARAMS=n |
| CONFIG_BT_SETTINGS_CCC_LAZY_LOADING=y |
| CONFIG_BT_HCI_VS_EXT=n |
| |
| # Disable Bluetooth controller features not needed |
| CONFIG_BT_CTLR_PRIVACY=n |
| CONFIG_BT_CTLR_PHY_2M=n |
| |
| # Reduce Bluetooth buffers |
| CONFIG_BT_BUF_EVT_DISCARDABLE_COUNT=1 |
| CONFIG_BT_BUF_EVT_DISCARDABLE_SIZE=45 |
| CONFIG_BT_BUF_ACL_RX_COUNT=2 |
| CONFIG_BT_BUF_EVT_RX_COUNT=2 |
| |
| CONFIG_BT_CONN_TX_MAX=2 |
| CONFIG_BT_L2CAP_TX_BUF_COUNT=2 |
| CONFIG_BT_CTLR_RX_BUFFERS=1 |
| CONFIG_BT_BUF_ACL_TX_COUNT=3 |
| CONFIG_BT_BUF_ACL_TX_SIZE=27 |
