SSR-1U User’s Manual
Rev -, 27 Dec 2019
© 2019 Slerj, LLC
18
www.slerj.com
4.3
Device Configuration
Device configuration is manipulated through the user interface module. The current working
configuration is held in system memory (RAM) and can be saved to non-volatile memory for
preservation across resets. On startup, if the contents of the non-volatile configuration memory
are valid, the stored configuration is loaded and used by the SSR-1U. The shell provides access
to device configuration through the following commands:
Table 8. Global Configuration Commands
Command
Description
config
Prints the current configuration (including all channels).
config save
Saves the working configuration to non-volatile memory.
config load
Retrieves the stored configuration from non-volatile
memory.
config erase
Erases the non-volatile configuration memory, but does not
change the current working configuration. When non-
volatile configuration memory has been erased,
configuration defaults are loaded at startup.
config <
ch#
> [
args
]
Provides access to channel configuration. The parameter
ch#
is the channel number (1 to 4). If no additional
arguments are specified, this command prints the
configuration for the specified channel. Specific channel
configuration commands are in Table 9.
config usben {hi | lo | yes | no} Determines when USB is enabled. It can be enabled based
on the UEN pin of the auxiliary connector (high or low),
always enabled, or never enabled. The last two are useful
for controlling USB access via the shell interface. When
UEN is configured
lo
or
hi
, an internal pull-up/down
resister is activated to pull the pin into the disabled state.
config leds {on | off | onx}
Allows the on-board LEDs to be turned off for power
savings. The
onx
option causes the LEDs to be active for
10 seconds after power is applied. Reserved pin 19 on the
main connector can be programmed to enable the LEDs
using the p19 configuration option.
config p19 {none | leds}
Reserved pin 19 can be configured in support of various
features. The default configuration is
none
. The
leds
option causes pin 19 (when pulled low) to enable LEDs
that are inactive as a result of using the leds
off
or
onx
options.
In addition to the global configuration commands presented in Table 8, there are several channel
specific configuration commands. The commands in the following table are entered as part of a
command line ‘config <ch#>
command
’.