Specifications

Operation 3-23
DS360 Ultra Low Distortion Function Generator
Self-Test Errors
Message Meaning
CPU ERR The DS360 detected a problem with the CPU.
CODE ERR XX The DS360 detected a ROM checksum error. XX is the expected checksum
value.
SYSD ERR The DS360 failed its RAM read / write test.
CALD ERR The calibration data in RAM is corrupted. The factory calibration data will be
reloaded from PROM.
DSP 0 DSP not responding. The instrument must be power cycled.
DSP 1
followed by: xxxxxx
DSP data bus error. The message is followed by a six digit (hex) code,
corresonding to each data line (of 24) that is in error.
DSP 2
followed by: xxxxxx
DSP address bus and memory cell error. The message is followed by a six digit
(hex) code, made up of three words.
Bits 0-15 are DSP address lines 0-15.
Bits 16-18 are set if there is an error on the X, Y or P memory spaces.
Bits 19-21 are set if there is an error in the low (D0-7), middle (D8-15) or high
(D16-23) bytes of the memory space.
TST n This message displays an encoded version of the bits 0-3 of the test register (see
the *TST command).
Other Messages
The DS360 displays a number of messages to inform the user of its operational status or
of actions the unit has taken. All possible messages are listed below.
Operational Messages
Message Meaning
ADDR xx GPIB address. The value xx is the current GPIB address.
ADJ BUR The Burst count has been adjusted to be lower then the current Rate count.
ADJ DFR The digital output frequency has been adjusted to an allowable range after
changing the sampling frequency.
ADJ VOLT The amplitude and offset has been adjusted to an allowable value after changing
the source impedance.
ADJ 2TA The non-selected 2Tone amplitude has been adjusted to within a 1:1000 range of
the currently selected tone.
ADJ 2TAll Tone 1 and Tone 2 amplitudes and offset have been adjusted to an allowable
value after changing the source impedance.
ADJ 2TFR Tone 2 Frequency has been adjusted after the Tone 2 mode was changed to
squarewave.
BAUD xxxx RS232 baud rate. The value xxxx is the current baud rate.
CLEAR Second selection of the CAL menu. If the calibration jumper is set correctly,
pressing any unit key will recall the default calbytes from PROM.