User's Manual

SARA-G3 and SARA-U2 series - System Integration Manual

UBX-13000995 - R18 Advance Information System description

Page 43 of 206

The following baud rates can be configured by AT command (see u-blox AT Commands Manual [3], +IPR):

x 1200 b/s

x 2400 b/s

x 4800 b/s

x 9600 b/s

x 19200 b/s

x 38400 b/s

x 57600 b/s

x 115200 b/s, default value when the autobauding or the one-shot autobauding are disabled

x 230400 b/s

x 460800 b/s

x 921600 b/s

1200 b/s, 230400 b/s, 460800 b/s and 921600 b/s baud rates are not supported by SARA-G3 modules.

460800 b/s and 921600 b/s baud rates cannot be automatically detected by SARA-U2 modules.

SARA-G3 modules support the automatic frame recognition in conjunction with autobauding.

SARA-U2 modules support the one-shot automatic frame recognition in conjunction with one-shot autobauding.

SARA-G3 series modules’ automatic frame recognition and SARA-U2 series modules’ one-shot automatic

frame recognition are enabled by default, as autobauding and one-shot autobauding.

The following frame formats can be configured by AT command (see u-blox AT Commands Manual [3], +ICF):

x 8N1 (8 data bits, No parity, 1 stop bit), default frame configuration with fixed baud rate

x 8E1 (8 data bits, even parity, 1 stop bit)

x 8O1 (8 data bits, odd parity, 1 stop bit)

x 8N2 (8 data bits, No parity, 2 stop bits)

x 7E1 (7 data bits, even parity, 1 stop bit)

x 7O1 (7 data bits, odd parity, 1 stop bit)

Figure 25 describes the 8N1 frame format, which is the default configuration with fixed baud rate.

D0 D1 D2 D3 D4 D5 D6 D7

Start of 1-Byte

transfer

Start Bit

(Always 0)

Possible Start of

next transfer

Stop Bit

(Always 1)

bit

= 1/(Baudrate)

Normal Transfer, 8N1

Figure 25: Description of UART default frame format (8N1) with fixed baud rate