UART

uart.baud

Description

Sets the UART baud rate. If raw argument is NOT used, baud rate must be one of the following standard rates:

110, 300, 600, 1200, 2400, 4800, 9600, 14400, 19200, 28800, 38400, 56000, 57600, 115200, 128000, 153600, 230400, 256000, 460800, 921600.

If the optional raw parameter is supplied, then the rate may be any value.

After changing uart.baud, save and reboot to effect the change.

Get arguments

<uart#>

Set arguments

<uart#> <baud rate> [raw]

Default

115200

Properties

• uart_update to apply change
• save and reboot to apply change
• available in Safe Mode
• preserved by NVM Backup
• lockable: see system.variable_lock

Supported Platforms

• AMW004
• AMW106
• AMW136

Get example

Get baud rate for UART 0:

> get uart.baud 0
R000008
115200

Set example

Set UART 0 baud rate to 460800:

> set uart.baud 0 460800
R000008
Set OK

uart.data

Description

The number of UART data bits to use.

Arguments

<uart#> <# data bits>

where:

• <# data bits> has the value 5, 6, 7, 8 or 9

Default

8

Properties

• uart_update to apply change
• save and reboot to apply change
• available in Safe Mode
• preserved by NVM Backup
• lockable: see system.variable_lock

Supported Platforms

• AMW004
• AMW106
• AMW136

Get example

Get data bits setting for UART 0:

> get uart.data 0
R000003
8

Set example

Set UART 0 to use 8 data bits:

> set uart.data 0 8
R000008
Set OK

uart.flow

Description

Turn on/off UART hardware flow control.

Note: to guarantee that no characters are dropped, uart.flow must be turned on. This applies to any baud rate.

Arguments

<uart#> <off/on>

Default

off

Properties

• uart_update to apply change
• save and reboot to apply change
• available in Safe Mode
• preserved by NVM Backup
• lockable: see system.variable_lock

Supported Platforms

• AMW004
• AMW106
• AMW136

Get example

Get flow control setting for UART 1:

> get uart.flow 1
R000005
off

Set example

Turn off flow control for UART 1:

> set uart.flow 1 off
R000008
Set OK

uart.parity

Description

Configure UART parity selection.

Arguments

<uart#> <none/even/odd>

Default

none

Properties

• uart_update to apply change
• save and reboot to apply change
• available in Safe Mode
• preserved by NVM Backup
• lockable: see system.variable_lock

Supported Platforms

• AMW004
• AMW106
• AMW136

Get example

Get parity setting for UART 1:

> get uart.parity 1
R000006
none

Set example

Set parity to odd for UART 1:

> set uart.parity 1 odd
R000008
Set OK

uart.stop

Description

The number of UART stop bits to use.

Arguments

<uart#> <# stop bits>

Default

1

Properties

• uart_update to apply change
• save and reboot to apply change
• available in Safe Mode
• preserved by NVM Backup
• lockable: see system.variable_lock

Supported Platforms

• AMW004
• AMW106
• AMW136

Get example

Get stop bits setting for UART 0:

> get uart.stop 0
R000003
1

Set example

Set stop bits to 1 for UART 0:

> set uart.stop 0 1
R000008
Set OK