AMS002-R datasheet(17/29 Pages) SILABS

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AMS00x • Embedded Bluetooth Low Energy Solution

Design Guidelines, Section 6

ADS-MS00x-107R • Preliminary Data Sheet

Page | 13

September 14, 2015

2. Factory Settings. Factory configuration provides a

way to save a configuration at manufacturing time.

Factory settings are saved using the TruConnect

command:

save factory <BD_ADDR>

Save with the lock option to ensure that factory

settings cannot be overwritten:

save factory <BD_ADDR> lock

CAUTION! The factory configuration cannot be

changed after saving with the lock option.

If no factory configuration is present or it is corrupt-

ed, then TruConnect loads the basic compile-time

default configuration.

Default Settings. The default configuration is a

sane set of defaults that are hardcoded in TruCon-

nect.

Factory Reset

The module may be factory reset with a TruConnect

command, or by asserting the factory reset pin at

bootup.

To factory reset via a command, issue:

> fac <BD_ADDR>

To factory reset via the factory reset GPIO:

1. Identify the GPIO used for factory reset by issu-

ing the command to get GPIO usage: get gp u

(the factory reset default is GPIO 6).

2. Assert a logic 1 (high) on the pin associated

with the factory reset GPIO

3. Assert and de-assert the reset pin to force the

module to reboot

4. Wait at least 10 seconds (the status of factory

reset is printed to the User UART

5. De-assert the factory reset pin

Command and Stream Mode

The module boots into serial bus command mode by

default and accepts configuration and control com-

mands via the User UART. Once the configuration is

saved, stream mode may be used to transfer data be-

tween the serial interface and a remote device con-

nected to the Bluetooth LE wireless interface. To toggle

between command mode and stream mode, the GPIO

alternate function mode_sel may be used (if config-

ured), or to simply transition from command mode to

stream mode, use the str command.

Once in stream mode, characters received from a host

MCU on the serial interface are automatically transmit-

ted to a remotely connected device via the BLE wireless

interface, and characters received from a remotely

connected device on the BLE wireless interface are

seamlessly transmitted on the serial interface to the

host MCU.

Configuration of the module is also possible using a re-

motely connected application, however if the serial in-

terface is configured to use command mode, remote

applications are forbidden from accessing the com-

mand interface. To grant a remote application access to

the command interface, the serial interface must first

place the module into stream mode to signal that it no

longer requires access to the command parser.

GPIO Configuration & Usage

The default GPIO configuration of the module is shown

in the following list, obtained by issuing the TruConnect

command sequence get gp u. The User UART, factory

reset and I2C pins are configured by default. All other

pins are unassigned or reserved.

> get gp u

# Description

0 i2c_sda

1 i2c_scl

2 user_tx

3 none

4 none

5 user_rx

6 none,factory

7 reserved

8 none

9 none

# 10 none

# 11 none

# 12 none

# 13 none

# 14 none

To configure a GPIO pin for use, the pin must be as-

signed a function. A large range of functions is availa-

ble, please refer to the TruConnect reference guide

online (at the following link) for further information:

http://truconnect.ack.me/commands#gfu

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