Wi-Fi & BT, Trizeps VIII Mini/Trizeps VIII Plus

H&D-Wireless Wi-Fi Module

The Trizeps VIII Mini is available with H&D Wireless SPB228 Wi-Fi Module.
It includes a powerful Marvell 88W997 chipset capable of 802.11 a/b/g/n/ac, 2×2 Wave2 MU-MIMO, BT 5 Classic, and LE.

Please also view the documentation from H&D Wireless regarding implementing the driver into the OS.

i.e. for Yocto

H&D Wireless supplies a Yocto-recipe.

1. Unpack meta-spb228-pcie-uart-32.tar.gz to your <project-dir>/<build-dir>/sources/-directory.

2. Add

   BBLAYERS += " ${BSPDIR}/meta-spb228-pcie-uart-32 "

   to your <project-dir>/<build-dir>/conf/bblayers.conf

3. Run bitbake

Create wpa_supplicant.conf

Power-Up Interface

Scan and Connect to Wi-Fi Network

Simple Scan

Connect manually using wpa_cli

Start wpa_supplicant:

Run wpa_cli:

Use the scan command to list available networks:

To connect to one of them, you will first need to create a network:

The output ('1') is the network ID used in the next commands:

The 'list_networks' commands show which networks have been set up ( i.e. WLAN_EXAMPLE-5G).
With 'select_network <network ID>' you select the network to which wpa_cli should connect:

Will trigger connection to the previously set up network WLAN_EXAMPLE-5G.

The mlan0 interface needs to be assigned an IP address, to have it functional. Either through DHCP or manually.

Get BT running

Prerequisites

The onboard WiFi/BT module on Trizeps VIII Mini/Trizeps VIII Plus is connected via UART, so all communication is handled by the HCI UART driver, which must be compiled with support for the Marvell protocol. Add the following to your kernel-config:

The user-space programs for BT are in a package called bluez. In Debian and it's derivates you can install it by

For Yocto add something like

to your image recipe.

Startup

First of all the kernel module must be loaded and the BT device must be attached to the appropriate UART:

This attaches UART3 to any BT interface found with a baudrate of 115200 and hardware flow control.

Important: In difference to the Trizeps VIII Mini, the Trizeps VIII Plus uses UART4 for BT, so the hciattach must be changed to:

Configuration

After this, you can start the BT interface

assign a name to it

enable page and inquiry scan

or stop it

There is also an interactive tool called bluetoothctl

You can scan for available devices

and list the devices found

The most important command:

Leave it with:

BT devices can also be managed by bluetoothd witch is configured by files in /etc/bl....th. Nevertheless the kernel module must be loaded and the UART must be attached in some init-script that is executed before bluetoothd is started. Otherwise it will refuse to start.

Notes

Enable & Disable WLAN function of the Device

GPIO3_17 ( GPIO81; see Using a GPIO in Linux) can be used to enable and disable the WLAN function.
Set GPIO high to enable; set GPIO low to disable WLAN function.