Trigger modes and appendant registers
Channel Trigger
(c) Spectrum GmbH
103
Channel window trigger for leaving signals
The analog input is continuously sampled with the selected
sample rate. The upper and the lower level define a win-
dow. Every time the signal leaves the window from the in-
side, a triggerevent will be detected.
Channel window trigger for long inner signals
The analog input is continuously sampled with the selected
sample rate. The upper and the lower levels define a win-
dow. Every time the signal enters the window from the out-
side, the pulsewidth counter is started. If the signal leaves
the window before the pulsewidth counter has stopped, no
trigger will be detected.
If the pulsewidth counter stops and the signal is still inside
the window, the triggerevent will be detected.
Channel window trigger for long outer signals
The analog input is continuously sampled with the selected
sample rate. The upper and the lower levels define a win-
dow. Every time the signal leaves the window from the in-
side, the pulsewidth counter is started. If the signal enters
the window before the pulsewidth counter has stopped, no
trigger will be detected.
If the pulsewidth counter stops and the signal is still outside
the window, the triggerevent will be detected.
Register
Value
Direction
set to
Value
SPC_TRIG_CH0_MODE
40610
read/write
SPC_TM_WINLEAVE
00000040h
SPC_TRIG_CH0_LEVEL0
42200
read/write
Set it to the upper trigger level relatively to the channel’s input range.
board dependant
SPC_TRIG_CH0_LEVEL1
42300
read/write
Set it to the lower trigger level relatively to the channel’s input range.
board dependant
Register
Value
Direction
set to
Value
SPC_TRIG_CH0_MODE
40610
read/write
SPC_TM_WINENTER | SPC_TM_PW_GREATER
04000020h
SPC_TRIG_CH0_LEVEL0
42200
read/write
Set it to the upper trigger level relatively to the channel’s input range.
board dependant
SPC_TRIG_CH0_LEVEL1
42300
read/write
Set it to the lower trigger level relatively to the channel’s input range.
board dependant
SPC_TRIG_CH0_PULSEWIDTH
44101
read/write
Sets the pulsewidth in samples. Values from 2 to 65535 are allowed.
2 to 65535
Register
Value
Direction
set to
Value
SPC_TRIG_CH0_MODE
40610
read/write
SPC_TM_WINLEAVE | SPC_TM_PW_GREATER
04000040h
SPC_TRIG_CH0_LEVEL0
42200
read/write
Set it to the upper trigger level relatively to the channel’s input range.
board dependant
SPC_TRIG_CH0_LEVEL1
42300
read/write
Set it to the lower trigger level relatively to the channel’s input range.
board dependant
SPC_TRIG_CH0_PULSEWIDTH
44101
read/write
Sets the pulsewidth in samples. Values from 2 to 65535 are allowed.
2 to 65535