HP E1563A, Руководство пользователя, Страница: 117 / 166

HP E1563A and E1564A Register-Based Programming 117 Appendix B
-- CVTable Channel 4 Register (base + 16
16
)
-- Samples Taken High Word Register (base + 18
16
)
-- Samples Taken Low Word Register (base + 1A
16
)
-- Calibration Flash ROM Address Register (base + 1C
16
)
-- Calibration Flash ROM Data Register (base + 1E
16
)
-- Calibration Source Register (base + 20
16
)
-- Range, Filter, Connect Channels 1 and 2 Register (base + 24
16
)
-- Range, Filter, Connect Channels 3 and 4 Register (base + 26
16
)
-- Trigger/Interrupt Level Channel 1 Register (base + 28
16
)
-- Trigger/Interrupt Level Channel 2 Register (base + 2A
16
)
-- Trigger/Interrupt Level Channel 3 Register (base + 2C
16
)
-- Trigger/Interrupt Level Channel 4 Register (base + 2E
16
)
-- Sample Period High Word Register (base + 30
16
)
-- Sample Period Low Word Register (base + 32
16
)
-- Pre-Trigger Count High Register (base + 34
16
)
-- Pre-Trigger Count Low Register (base + 36
16
)
-- Post-Trigger Count High Register (base + 38
16
)
-- Post-Trigger Count Low Register (base + 3A
16
)
-- Trigger Control/Source Register (base + 3C
16
)
-- Sample Control/Source Register (base + 3E
16
)
ID Register
Reading the ID register returns FFF
16
in the least significant bits to indicate
the manufacturer is Hewlett-Packard and the module is an A16 register-
based device.
Reading the Register
•
Via Command Module PEEK command: DIAG:PEEK? 2083328,16
(2083328 = base with logical address 40 + 0 offset; see Figure B-2)
•
Via Digitizer Module PEEK command: DIAG:PEEK? 0
(0 signifies the first word, 16 bits, zero-base numbering system)
The “Programming Examples” on page 130 shows how to read the ID
Register.
Device Type
Register
Reading the Device Type Register returns 266
16
in the least significant bits
to identify the device as the HP E1563A 2-Channel Digitizer or 267
16
in the
least significant bits to identify the device as the HP E1564A 4-Channel
Digitizer.
base + 00
16
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Read Device Class
1 1
Addr Space
0 0
Manufacturer ID - returns FFF
16
(-12289
10
)in Hewlett-Packard A16 only register-based
base + 02
16
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Read
0
1 1 1
HP E1563A (2-Channel Digitizer) = 266
16
,
614
10
;
HP E1564A (4-Channel Digitizer) = 267
16
,
615
10