AN4127

Getting started

Doc ID 023304 Rev 1

17/27

Figure 24.

Connection dongle1, dongle2

Now the two dongles are connected to one another and in -BypassMode-.

In other words, everything typed on a terminal is transferred to the other via the Bluetooth

link and vice versa. In -BypassMode- the dongle doesn't answer the commands.

If, for example, the user needs to change some parameters of a dongle, it’s necessary to

switch to -CommandMode-, giving the “escape command”.

The escape command is a special sequence of characters followed by at least two seconds

of inactivity on the serial port.

The escape command sequence is: ^ #^$^%.

Figure 25.

Escape dongle1, dongle2

As can be noted, the escape command given to dongle1 doesn't affect dongle2 which

remains in -BypassMode-.

Connection between the two dongles is still active; to return to the “exchange data” situation,

dongle1 must be re-configured in -BypassMode- with the command “Bypass”.