Sensoray 2600 - Manual (Page 59)

2600 Family Instruction Manual 54 Chapter 9 : Model 2620 Counter Module
9.4.4 GetStatus
Function Returns a counter channel’s status information.
Opcode 0x02 + Chan * 16
Command none
Response (Status<15:8>),(Status<7:0>)
Figure 49: Counter Status MSB
Figure 50: Counter Status LSB
QDE: Quadrature decoder error. This bit is automatically reset
by this GetStatus action.
LAT: Counter core was latched. This bit is automatically reset
by a ReadLatch action.
GO: Counter was enabled by a trigger.
LOD: Counter was pre-loaded. This bit is automatically reset
by this GetStatus action.
EXT: Counter extension bit 32.
UF: Counter underflowed. This bit is automatically reset by
this GetStatus action.
OF: Counter overflowed. This bit is automatically reset by
this GetStatus action.
ZER: Counter value is now zero.
All other bits are reserved for future use.
9.4.5 SetPreload0
Function Programs a counter channel’s Preload0 register to
the specified value.
Opcode 0x03 + Chan * 16
Command (Counts[0]),(Counts[1]),
(Counts[2]),(Counts[3])
Response none
Notes The preload register is loaded immediately when
this action executes. The counter core is not
affected; it will continue to operate in its
programmed mode.
9.4.6 SetPreload1
Function Programs a counter channel’s Preload1 register to
the specified value.
Opcode 0x04 + Chan * 16
Command (Counts[0]),(Counts[1]),
(Counts[2]),(Counts[3])
Response none
Notes The preload register is loaded immediately when
this action executes. The counter core is not
affected; it will continue to operate in its
programmed mode.
9.4.7 GetCounts
Function Returns a channel’s count value.
Opcode 0x05 + Chan * 16
Command none
Response (Counts[0]),(Counts[1]),
(Counts[2]),(Counts[3])
Notes Counting is not interrupted by this action.
9.4.8 GetCountsTs
Function Returns a channel’s count value and time stamp.
Opcode 0x06 + Chan * 16
Command none
Parameter Function
Counts The 32-bit value that is to be stored in
the counter channel’s preload register.
Bytes are ordered least-significant byte
first.
15
0
14
0
13
0
12
0
11
0
10
0
9
0
8
0
7
QDE
6
LAT
5
GO
4
LOD
3
EXT
2
UF
1
OF
0
ZER
Parameter Function
Counts The 32-bit value that is to be stored in
the counter channel’s preload register.
Bytes are ordered least-significant byte
first.
Parameter Function
Counts Byte array containing the 32-bit value
that is contained in the counter’s output
latch when the action executes. Bytes
are ordered least-significant byte first.