prj.conf

CONFIG_CONSOLE=n
CONFIG_STDOUT_CONSOLE=n
CONFIG_UART_CONSOLE=n
CONFIG_GPIO=y
CONFIG_SERIAL=y
CONFIG_UART_INTERRUPT_DRIVEN=y
CONFIG_BT=y
CONFIG_BT_HCI_RAW=y
CONFIG_BT_HCI_RAW_H4=y
CONFIG_BT_HCI_RAW_H4_ENABLE=y
CONFIG_BT_BUF_ACL_RX_SIZE=255
CONFIG_BT_BUF_CMD_TX_SIZE=255
CONFIG_BT_BUF_EVT_DISCARDABLE_SIZE=255
CONFIG_BT_CTLR_ASSERT_HANDLER=y
CONFIG_BT_MAX_CONN=16
CONFIG_BT_TINYCRYPT_ECC=n

# Setup ISO Buffer
CONFIG_BT_ISO_TX_BUF_COUNT=10
CONFIG_BT_ISO_TX_MTU=251
CONFIG_BT_ISO_RX_BUF_COUNT=10
CONFIG_BT_ISO_RX_MTU=251

# Enable ISO support
CONFIG_BT_ISO_PERIPHERAL=y
CONFIG_BT_ISO_CENTRAL=y
CONFIG_BT_ISO_BROADCASTER=y
CONFIG_BT_ISO_SYNC_RECEIVER=y
CONFIG_BT_EXT_ADV=y
CONFIG_BT_PER_ADV_SYNC_TRANSFER_RECEIVER=y
CONFIG_BT_PER_ADV_SYNC_TRANSFER_SENDER=y

# Configure Controller
CONFIG_BT_CTLR_CONN_ISO_GROUPS=1
CONFIG_BT_CTLR_CONN_ISO_STREAMS=3
CONFIG_BT_CTLR_SYNC_ISO_STREAM_COUNT=2
CONFIG_BT_CTLR_ADV_EXT=y
CONFIG_BT_CTLR_ADV_SET=2
CONFIG_BT_CTLR_ADV_ISO_SET=2
CONFIG_BT_CTLR_ADV_ISO_STREAM_COUNT=3
CONFIG_BT_CTLR_SYNC_PERIODIC_ADV_LIST_SIZE=1

# Support six links as a central, or one link as a peripheral
CONFIG_BT_MAX_CONN=8
CONFIG_BT_CTLR_SDC_PERIPHERAL_COUNT=2

# Allow using more than default advertising event length
CONFIG_BT_CTLR_ADV_DATA_LEN_MAX=251

# Workaround: Unable to allocate command buffer when using K_NO_WAIT since
# Host number of completed commands does not follow normal flow control.
CONFIG_BT_BUF_CMD_TX_COUNT=10

# for the timesync command
CONFIG_BT_HCI_RAW_CMD_EXT=y