Concurrent command execution

Leapscom is designed to run either TLV (Type-Length-Value) commands or shell commands over a selected interface on target devices. This is useful for managing and testing LEAPS subsystem devices concurrently.

TLV commands

--tlv TLV_COMMAND [TLV_COMMAND ...]

List of TLV commands as hexadecimal string. See list of supported TLV commands.

For example, to execute a following sequence of commands for all devices that are connected on the USB interface:

Use following:

$ python3 -m leapscom --usb --tlv 0503720402 1400 2000

Shell commands

--shell SHELL_COMMAND [SHELL_COMMAND ...]

List of shell commands. See list of supported Shell commands.

For example, to execute a following sequence of commands for all devices that are connected on serial port as serial device /dev/ttyACM0 and /dev/ttyACM1:

  • Set network ID to 1234 (nis)

  • Configure as TAGs with BLE enabled, UWB mode: active and LEDs enabled. (tcs)

  • Apply the configuration by resetting the devices (reset)

use following:

$ python3 -m leapscom --dev /dev/ttyACM0 /dev/ttyACM1 --shell 'nis 1234' 'tcs ble 1 uwb 2 leds 1' reset --verbose

Use verbose output if you want to see the details and the response to the shell command.

Retries on Failure

If a command fails (e.g., due to a timeout or no response), Leapscom can automatically retry the command a specified number of times to increases reliability when working with unstable connections or devices under test.

-a, --attempts NUMBER

Maximum number of attempts in case of a failed command.

Custom Timeout Support

Users can specify a timeout duration for each command. If the command does not complete or return a response within the timeout window, it will be considered failed, triggering a retry if configured.

-t, --timeout SECONDS

Timeout in seconds, e.g.: 0.5.

Supported Interfaces

Leapscom is designed to operate concurrently, enabling efficient command execution on multiple devices at the same time. Commands are sent over a user-specified interface (e.g., USB, BLE, serial ports).

-u, --usb [SERIAL_NUMBER ...]

List of USB serial numbers. If no serial number is given, all available LEAPS devices are used.

-b, --ble [MAC_ADDRESS ...]

List of BLE MAC addresses. If no address is given, all scanned LEAPS devices are used.

-d, --dev [SERIAL_DEVICE ...]

List of serial devices. It can be tty device on Linux and MAC or COM port on Windows.

Commands can be executed in two ways:

  • Broadcast to all connected devices

    The command is sent to every device currently connected to the system or network. This is useful when the same action needs to be performed universally (e.g., syncing time, applying a global configuration).

  • Targeted to specific devices

    The command is sent only to explicitly specified devices. This allows for granular control, enabling you to apply actions to a subset of devices based on criteria like device ID, group, or type.

Discovering devices

You can list all available LEAPS devices connected to your PC on the USB or serial port or scan for all available devices that are advertising on the BLE interface using the command:

$ python3 -m leapscom --lsusb
Leaps USB devices with ID 1915:e8e3:
1.[630D46F2D51482FC] address 74 on bus 1, Label: "ID0A97"
2.[7E1C5859C2ECF343] address 73 on bus 1, Label: "ID5606"
3.[EACD147C04DD6BA8] address 75 on bus 1, Label: "IDD220"
4.[2FB14F372E0341A6] address 72 on bus 1, Label: "ID4C15"

Make sure that BLE is enabled on the device (see leaps_cfg_get).

$ python3 -m leapscom --lsble
Scanning for BLE devices, please wait...
1.[FE:40:B4:BC:D3:42] - AdvertisementData(local_name='LEAPSDECAECC259555606', service_data={'680c21d9-c946-4c1f-9c11-baa1c21329e7': b'4\x12\x06V\x02A\xff\x00\x00'}, rssi=-56)
2.[E0:05:86:49:A9:40] - AdvertisementData(local_name='LEAPSDECA14D5F2450A97', service_data={'680c21d9-c946-4c1f-9c11-baa1c21329e7': b'\x00\x00\x97\n\x01[\xff\x00\x00'}, rssi=-61)
3.[EF:7E:7A:E3:38:B6] - AdvertisementData(local_name='LEAPSDECA032E37404C15', service_data={'680c21d9-c946-4c1f-9c11-baa1c21329e7': b'4\x12\x15L\x02\xc9\xff\x00\x00'}, rssi=-62)
4.[D3:B6:82:62:5F:06] - AdvertisementData(local_name='LEAPSDECADD047C15D220', service_data={'680c21d9-c946-4c1f-9c11-baa1c21329e7': b'4\x12 \xd2\x02U\xff\x00\x00'}, rssi=-64)

$ python3 -m leapscom --lsdev
Leaps serial ports:
1. ttyACM6 - DAPLink CMSIS-DAP - mbed Serial Port, Label: "ID93A6"
2. ttyACM5 - DAPLink CMSIS-DAP - mbed Serial Port, Label: "IDC485"
3. ttyACM4 - DAPLink CMSIS-DAP - mbed Serial Port, Label: "ID1391"

Configuration file

To run list of commands from configuration file:

-c, --cfg YAML_FILE

YAML configuration file that contains definition of the command sequence.

Example configuration file: configure-tags.yaml:

# configure device as TAG, set node ID to 0xABCD and reset
tlv:
  - cmd: '0503720402' # TLV command - 'cfg_tag_set'
    timeout: 2.5
    attempts 3
  - cmd: '2e02cdab' # TLV command - 'panid_set`
  - cmd: '14 00' # TLV command - 'reset'

To execute commands defined in the configuration file use for example:

$ python3 -m leapscom --usb --cfg configure-tags.yaml

Possible configuration file using shell commands:

# See information about the device, then configure as TAG and reset
shell:
  - cmd: si # SHELL command 'si'
  - cmd: ut # SHELL command 'ut'
  - cmd: acs leds 1 ble 1 # SHELL command 'tcs' set LEDs ON and BLE ON
    timeout: 3.0 # delay 2 seconds after the command
    attempts 5
  - cmd: reset # SHELL command 'reset'
    timeout: 5.0

To execute commands defined in the configuration file and see the verbose output:

$ python3 -m leapscom --usb --cfg configure-tags.yaml -v

Verbose output need to be enabled to display output to the shell commands.