8.14.6 Attaching UART for Bluetooth

The ATWILC3000 Bluetooth driver provides the UART interface and is connected via a Teletypewriter (TTY) device. It is connected to the BlueZ stack.

The following command is used to attach the device. Ensure that the /dev/ttyS1 folder is available on the target platform. The user must set the Bluetooth firmware baud rate at 115200 and enable noflow control.

$ hciattach ttyS1 any 115200 noflow

Ensure that the Host Control Interface (HCI) is created.

$ hciconfig -a
hci0:	Type: BR/EDR  Bus: UART
	BD Address: AB:89:67:45:23:01  ACL MTU: 1021:9  SCO MTU: 255:4
	DOWN 
	RX bytes:574 acl:0 sco:0 events:27 errors:0
	TX bytes:411 acl:0 sco:0 commands:27 errors:0
	Features: 0xff 0xff 0xcd 0xfe 0xdb 0xff 0x7b 0x87
	Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 
	Link policy: RSWITCH HOLD SNIFF PARK 
	Link mode: SLAVE ACCEPT