power - Power Control

Control power applied to the Device Under Test.

Usage:

- command: power off

- command: power <rail> [on|off|<level>]

power off (with no rail) turns off all DUT power rails. power <rail> off turns off only the specified rail.

Argument

Description

rail

Power rail

on

Turn on the specified power rail

off

Turn off all or specified power rail

level

Voltage level for VARV, SWD or JTAG. Accepts a bare number (interpreted as volts) or a number with a V unit suffix (mV, V, kV); e.g., 3.3 and 3300mV are equivalent.

Supported rail values:

rail

Description

1V8

1.8V power rail

3V3

3.3V power rail

5V

5V power rail

VARV

Variable power rail

12V

12V power rail

24V

24V power rail

SWD

SWD target-voltage rail (1.8V or 3.3V, selectable)

JTAG

JTAG target-voltage rail (1.8V or 3.3V, selectable)

UART0

UART0 (3.3V) power rail

UART1

UART1 (3.3V) power rail

Supported level values for the VARV rail: any value from 0.1 … 23.9 configures the adjustable supply to that voltage. 12.0 and 24.0 (within a small tolerance) instead switch VARV onto the fixed 12V and 24V rails rather than the adjustable supply. Requesting 0 while VARV is already on re-enables it at its previously configured voltage.

Supported level values for the SWD rail: 1.8, 3.3

Supported level values for the JTAG rail: 1.8, 3.3

Note

level is only meaningful when turning a rail on. If level is omitted (or 0), SWD and JTAG are turned on without changing their currently selected voltage level, and VARV is turned on at its previously configured voltage.

Examples