AMU Library 3.0
C/C++ library for communicating with AMU (Aerospace Measurement Unit) devices
Loading...
Searching...
No Matches
System Commands
SCPI Commands

System Commands for AMU Library.

System Commands for AMU Library.

System-level SCPI commands for device control and configuration.

These SCPI commands control basic system functions including:

  • Device identification and status
  • LED control (SYSTem:LED:*)
  • Sleep mode (SYSTem:SLEEP)
  • Temperature monitoring (SYSTem:TEMPerature?)
  • I2C configuration (SYSTem:TWI:*)
  • Firmware information (SYSTem:FIRMware?)

Each command corresponds to an I2C enumerated type.

SCPI System Commands Reference

Communication Test

*TST?

Description: Tests device communication without performing any operation or changing state.

Syntax: *TST?

Parameters: None

Returns: Status code (0 = success)

I2C Equivalent: CMD_SYSTEM_NO_CMD (0x0100)

Example:

*TST?
0

System Reset

*RST

Description: Performs a complete software reset of the device, restoring all settings to factory defaults.

Syntax: *RST

Parameters: None

Returns: None (device resets)

I2C Equivalent: CMD_SYSTEM_RESET (0x0101)

Warning: All user configuration will be lost. Device will disconnect briefly during reset process.

Example:

*RST

Temperature Monitoring

SYSTem:TEMPerature?

Description: Reads the built-in microcontroller temperature sensor for thermal monitoring.

Syntax: SYSTem:TEMPerature?

Parameters: None

Returns: Temperature in degrees Celsius (range: -40 to +85°C)

I2C Equivalent: CMD_SYSTEM_TEMPERATURE (0x0108)

Accuracy: ±3°C (factory calibrated at 25°C)

Warning: High temperatures may indicate thermal stress

Example:

SYSTem:TEMPerature?
23.5

I2C Configuration

SYSTem:TWI:ADDress

Description: Sets or queries the device I2C slave address for TWI communication.

Syntax:

  • Query: SYSTem:TWI:ADDress?
  • Set: SYSTem:TWI:ADDress <address>

Parameters:

  • address: 7-bit I2C address (range: 0x08-0x77, excludes reserved addresses)

Returns: Current I2C address (7-bit, no R/W bit)

I2C Equivalent: CMD_SYSTEM_TWI_ADDRESS (0x0103)

Warning: Address 0x00-0x07 and 0x78-0x7F are reserved and will be rejected

Note: Address changes take effect immediately but are not saved to EEPROM

Example:

SYSTem:TWI:ADDress 0x42
SYSTem:TWI:ADDress?
66

Firmware Information

SYSTem:FIRMware?

Description: Returns the current firmware version string in semantic versioning format.

Syntax: SYSTem:FIRMware?

Parameters: None

Returns: Version string (format: "X.Y.Z", e.g., "2.1.0")

I2C Equivalent: CMD_SYSTEM_FIRMWARE (0x0106)

Note: Maximum string length: 16 characters

Example:

SYSTem:FIRMware?
3.0.1