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Clicking, holding, and dragging
the cursor over multiple cells of the channel selection grid
can activate useful groupings of channels. Here are some examples.
Selecting Consecutive Input Channels
Selecting horizontal rows of channels selects a group of consecutive logical channels to configure. The following sequence will select single-ended input pipe channels S2 through S9 and assign them to the logical channel pipes IP0 through IP7.
- Under the
Input Pipes tab, move the mouse
cursor to the Input Pipe Edit Selection grid,
and press the right mouse button to bring up a pop-up menu.
Select Clear All .
- Click the
0 button and drag the mouse to
select all items through to the 7 button.
- Type "
S2 " in the Input Pin
edit box.
- Move the mouse cursor over the
Input Pipe Edit
Selection grid, press the right mouse button to bring
up a pop-up menu, and select Selected Channels|Input Pin
Same As First .
Alternating Analog and Digital Port Samples
Channels that are de-selected do not use a previous
configuration. You can use the following sequence to configure
alternating samples of single-ended analog channels and digital
port samples.
- Under the
Input Pipes tab, move the mouse
cursor to the Input Pipe Edit Selection grid,
and press the right mouse button to bring up a pop-up menu.
Select Clear All .
- Click the
0 button and drag the mouse down
to select all items in the column.
- Repeat with the
2, 4, and 6
buttons. You will obtain a vertically-striped display.
- Type "
S0 " in the Input Pin
edit box.
- Move the mouse cursor over the selected channels display
at the right. Click the right mouse
button to bring up a pop-up menu, and select
Selected
Channels | Input Pin Increment From First . This assigns
analog channels in sequence.
- Click the
0 button and drag the mouse down
over every cell in the channel selection grid. This will invert
all selections.
- Drop down the selection menu on the right of the
Input Pin edit box and select pin type B, keeping the
default B0.
- Right click on the selected channel display at the right.
Press the right mouse button to bring up a pop-up menu, and select
Selected Channels | Input Pin Increment From First .
This selects the digital ports in sequence.
- Right click the mouse on the
Input Pipe Edit Selection
grid, and choose Select All from the dialog.
Mixed High and Low Speed Sampling
The DAPL system does not limit you to sampling a given
hardware channel only once. A special hardware signal where
events should be detected quickly can be sampled frequently,
while other signals are sampled in the normal sequence.
- Select all of the channels in the channel selection grid.
- In the display on the right, select logical channel IP0
and configure it to sample pin S0.
- Right click on the display, and from the dialog select
All Channels , and then Input Pin Same As
First .
- Repeat the methods for selecting
alternate columns, so that channels
S1 , S3
and so forth are selected.
- In the display at the right, click on channel IP1 to
select it.
- Configure it to sample signal pin S1.
- Move the cursor over the display window and click the right mouse
button to bring up a pop-up menu, and select
Selected
Channels | Input Pin Increment From First . This assigns
analog channels in sequence.
- Right click the mouse on the
Input Pipe Edit Selection
grid, and choose Select All from the dialog.
Return to the DAPlog examples page.
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