Adeunis RF Vokkero BasiX User's Guide download pdf (Page 12)

RF62

User Guide

Ref. 11-07-V3-ffr p 10

DTR is activated on the master.

When the link is established data can be exchanged using the serial link.

Caution the BT connection establishment can takes several seconds (you can

check this establishment either in command mode using the AT&L command

or by checking report of a remote signal).

DTR/DSR/RI and DCD I/O configuration :

These lines are set as inputs while the connection is not established or

released,

And set as input and output according to the DUN illustration and to the

description done in signal description table.

Dongle operating mode

Two operating modes are available:

- Command mode (usage of AT commands and SPP_CONFIG mode),

- Transparent mode (serial data are transmitted on radio link).

At power up, the dongle is in transparent mode according to the registers

configuration. The boot time is about 1s.

Command mode

The command mode is used to read and update the dongle configuration

registers using AT commands.

In command mode, the radio is inhibited (reception and transmission),

excepted when using test command.

Entering command mode : issues on the serial link a A+++ sequence.

The sequence A+++ characters is accepted only if no character has been

seen before and after the A+++ sequence. Register (S214) defines the

silence duration.

Tips : if you are using a terminal (such as Hyperterm), you have to send the

A+++ sequence using a text file (first create a text file containing only the

A+++ characters, and then use in Hyperterm the command “Send text file”

in the “Transfer menu”)

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Adeunis RF Vokkero BasiX User's Guide Page 12