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Querying AFG
Parameters
Parameter
Query
Opcode
60
Function
48
Frequency
49
Register 1
50
51
52
Frequency
53
Register 2
54
55
58
Attenuation
59
56
Offset
57
17
Burst Count
18
40
Sweep Rate
41
62
63
16
61
Mode
23
280 HP E1340A Register-Based Programming
This program is used to query the following AFG parameters:
function
frequency (Registers 1 and 2)
attenuation
offset
burst count
sweep rate
mode
The query opcodes used are shown in Table C-4 below.
Table C-4. AFG Query Opcodes
Returns the byte used to set the function and select RAM.
Returns the most significant byte (MSB) used to set the output frequency.
Returns the second significant byte (2SB) used to set the output frequency.
Returns the third significant byte (3SB) used to set the output frequency.
Returns the least significant byte (LSB) used to set the output frequency.
Returns the most significant byte (MSB) used to set the output frequency.
Returns the second significant byte (2SB) used to set the output frequency.
Returns the third significant byte (3SB) used to set the output frequency.
Returns the least significant byte (LSB) used to set the output frequency.
Returns the most significant byte (MSB) used to set the attenuation.
Returns the least significant byte (LSB) used to set the attenuation.
Returns the most significant byte (MSB) used to set the DC offset.
Returns the least significant byte (LSB) used to set the DC offset.
Returns the most significant byte (MSB) used to set the burst count.
Returns the least significant byte (LSB) used to set the burst count.
Returns the most significant byte (MSB) used to set the phase increment.
Returns the second significant byte (2SB) used to set the phase increment.
Returns the third significant byte (3SB) used to set the phase increment.
Returns the least significant byte (LSB) used to set the phase increment.
Returns the tic count (sent as a one byte parameter query).
Returns 'Byte 1' (Table C-2) of the clock source and output mode.
Returns 'Byte 2' (Table C-2) of the clock source and output mode.
Description
Appendix C
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