
WIRELESS CONNECTIVITY & SENSORS
User manual Proteus-II
8.20. UART_BaudrateIndex: Modify the UART speed
Settings
index
Designation
Permissible
values
Default value
Permissions
Number
of
Bytes
11
See
description
3
read/write
1
This parameter defines the baud rate used by the module’s UART. The permissible values are
listed in the following table.
Permissible values
0
1
2
3
4
5
6
Rate [Baud]
9600
19200
38400
115200
230400
460800
921600
The flow control pins
and
can be enabled using the user setting
. For
5 and 6 the flow control pins are enabled
independent of the
Please note that due to the HF-activity of the chip, single Bytes on the UART
can get lost, when using a very fast UART data rate. To avoid loosing single
bytes, please enable the UART flow control.
For baud rates faster than 230400 Baud, the flow control pins
and
are enabled.
The evaluation board Proteus-II-EV version 2.0 does not provide the connection
between the flow control pins of the module and the evaluation board’s USB
port. Thus in this version of the Proteus-II-EV the flow control can be only
used, if the on-board UART is disconnected (remove respective jumpers on
JP2) and all UART lines (
and
) are connected to an
external FTDI cable.
After changing the baud rate using the
the module restarts us-
ing the new baud rate. Therefore don’t forget to update the baud rate of the
connected host to be able to further use the module’s UART.
8.20.1. Example 1
Set the baud rate index to 0x04 (230400 Baud) using
with settings index 11
Order code 2608011x24010
116
Version 1.11 , July 2022