HP E1418A manual Undefined Registers Channel Voltage Offset Calibration

Note

Undefined Registers

Channel Voltage

Offset Calibration

Registers

A different gain value is required for voltage and current output operation.

The registers from C016 through FE16 are undefined.

The Channel Voltage Offset Calibration Registers store voltage offset calibration constants in non-volatile memory. There are 16 registers, one for each output channel. The register at base + 10016 stores channel 1, base + 10216 stores channel 2, up to base 11E16 which stores channel 16. This register is non-volatile.

Address	Bit	15	14	13	12	11	10	09	08	07	06	05	04	03	02	01	00
Base + 10016
						msb											lsb
through
Base + 11E16	WRITE		Unused					Voltage Offset Calibration Constant

Voltage Offset Calibration Constant: Writing a 12-bit value to this field stores a new constant used to calibrate the channel output. Values are in the range:

00016 maximum positive offset

80016 nominal (zero) offset

FFF16 maximum negative offset

Notes Registers 0010016 through 001BE16 are located in non-volatile (FLASH) memory. Writing to this memory requires a complicated sequence of register accesses not documented here. It is recommended that calibration be performed using the SCPI driver for the module, not register access.

Non-volatile memory has finite life, based upon the number of writes. Use care when writing to this memory.

The contents of this register are loaded into volatile memory at power-on and not used on an on-going basis.

140 HP E1418A Register-Based Programming Appendix B