Tri-state pin

Hi! I'm working with a PCI-MIO-16E-1 DAQ and i want to know if a PFI pin as an output is set to tri-state and to use their corresponding special function signal i have to make a routing, or it's set automaticaly to output the corresponding special function.
For example, if i connect an encoder to the PFI7/STARTSCAN pin and set the STARTSCAN signal to be internal, i have the STARSCAN as an output in that pin?
That could damage the encoder?
Tanks!

Hello;
When you have a PFI line working as an Output, the signal which is being generated internally on the board will be output on that pin. So, using the StartScan signal as example, if you set that one to be internal, the pin will output that signal, and if you connect that to an encoder, keep in mind that the signal will be output to the encoder.
Hope this helps.
Filipe

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PORT fdata = "", DIR = INOUT , VEC = [31:0], ENABLE=SINGLE, THREE_STATE = TRUE,TRI_I = fdata_I, TRI_O = fdata_O, TRI_T = fdata_T
PORT fdata_I = "", DIR = I , VEC = [31:0]
PORT fdata_O = "", DIR = O , VEC = [31:0]
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fdata_o : out std_logic_vector(31 downto 0);
fdata_i : in std_logic_vector(31 downto 0);
fdata_t : out std_logic ;
I got ERROR:MapLib:973 - Tri-state buffers are not supported in this architecture messages for each
signals of my fdata PORT, while mapping !
Thanks for you help.

What device are you targeting, and what version of the software are you using?
I target a xc7k325t-fbg676-2.
I use ISE 14.3 form platgen to xst and 14.7 from map to bitgen.
What does your top level HDL (verilog or VHDL) file look like (where the IO must be instantiated)?
It is a .vhd in whitch i wrapp my top XPS core, described by .mhs
The problematic IO port is instantiated into the mb_core.vhd (generated by XPS).
If i open it, i could see that the tool correctly infer the corresponding IOBUF's :
component mapping :
fdata_I => FX3_DQ_I,
fdata_O => FX3_DQ_O,
fdata_T => FX3_DQ_T,
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iobuf_1 : IOBUF
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What do your constraints file look like (where the pin number and names get declared)?
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NET FX3_DQ[0] LOC = "B24"| IOSTANDARD = LVCMOS33 ;
NET FX3_DQ[31] LOC = "G26"| IOSTANDARD = LVCMOS33 ;#Bank 14

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Hi all,
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Best Regards,
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I don't think it can be done, but why not ask in the Acrobat forum. This is the Reader forum. Acrobat users are more likely to come up with a method that might work than Reader users that do not use Acrobat.

Tri - State Checkbox in a pdf form

Hi all,
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Best Regards,
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Something similar to this
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values: true, false, null
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Thanks

Any plans?
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Many thanks,
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The Follwoing code will work out for you i have read in an article
import javax.swing.*;
import javax.swing.event.ChangeListener;
import javax.swing.plaf.ActionMapUIResource;
import java.awt.event.*;
* Maintenance tip - There were some tricks to getting this code
* working:
* 1. You have to overwite addMouseListener() to do nothing
* 2. You have to add a mouse event on mousePressed by calling
* super.addMouseListener()
* 3. You have to replace the UIActionMap for the keyboard event
* "pressed" with your own one.
* 4. You have to remove the UIActionMap for the keyboard event
* "released".
* 5. You have to grab focus when the next state is entered,
* otherwise clicking on the component won't get the focus.
* 6. You have to make a TristateDecorator as a button model that
* wraps the original button model and does state management.
public class TristateCheckBox extends JCheckBox {
/** This is a type-safe enumerated type */
public static class State { private State() { } }
public static final State NOT_SELECTED = new State();
public static final State SELECTED = new State();
public static final State DONT_CARE = new State();
private final TristateDecorator model;
public TristateCheckBox(String text, Icon icon, State initial){
super(text, icon);
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super.addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent e) {
grabFocus();
model.nextState();
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ActionMap map = new ActionMapUIResource();
map.put("pressed", new AbstractAction() {
public void actionPerformed(ActionEvent e) {
grabFocus();
model.nextState();
map.put("released", null);
SwingUtilities.replaceUIActionMap(this, map);
// set the model to the adapted model
model = new TristateDecorator(getModel());
setModel(model);
setState(initial);
public TristateCheckBox(String text, State initial) {
this(text, null, initial);
public TristateCheckBox(String text) {
this(text, DONT_CARE);
public TristateCheckBox() {
this(null);
/** No one may add mouse listeners, not even Swing! */
public void addMouseListener(MouseListener l) { }
* Set the new state to either SELECTED, NOT_SELECTED or
* DONT_CARE. If state == null, it is treated as DONT_CARE.
public void setState(State state) { model.setState(state); }
/** Return the current state, which is determined by the
* selection status of the model. */
public State getState() { return model.getState(); }
* Exactly which Design Pattern is this? Is it an Adapter,
* a Proxy or a Decorator? In this case, my vote lies with the
* Decorator, because we are extending functionality and
* "decorating" the original model with a more powerful model.
private class TristateDecorator implements ButtonModel {
private final ButtonModel other;
private TristateDecorator(ButtonModel other) {
this.other = other;
private void setState(State state) {
if (state == NOT_SELECTED) {
other.setArmed(false);
setPressed(false);
setSelected(false);
} else if (state == SELECTED) {
other.setArmed(false);
setPressed(false);
setSelected(true);
} else { // either "null" or DONT_CARE
other.setArmed(true);
setPressed(true);
setSelected(true);
* The current state is embedded in the selection / armed
* state of the model.
* We return the SELECTED state when the checkbox is selected
* but not armed, DONT_CARE state when the checkbox is
* selected and armed (grey) and NOT_SELECTED when the
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private State getState() {
if (isSelected() && !isArmed()) {
// normal black tick
return SELECTED;
} else if (isSelected() && isArmed()) {
// don't care grey tick
return DONT_CARE;
} else {
// normal deselected
return NOT_SELECTED;
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private void nextState() {
State current = getState();
if (current == NOT_SELECTED) {
setState(SELECTED);
} else if (current == SELECTED) {
setState(DONT_CARE);
} else if (current == DONT_CARE) {
setState(NOT_SELECTED);
/** Filter: No one may change the armed status except us. */
public void setArmed(boolean b) {
/** We disable focusing on the component when it is not
* enabled. */
public void setEnabled(boolean b) {
setFocusable(b);
other.setEnabled(b);
/** All these methods simply delegate to the "other" model
* that is being decorated. */
public boolean isArmed() { return other.isArmed(); }
public boolean isSelected() { return other.isSelected(); }
public boolean isEnabled() { return other.isEnabled(); }
public boolean isPressed() { return other.isPressed(); }
public boolean isRollover() { return other.isRollover(); }
public void setSelected(boolean b) { other.setSelected(b); }
public void setPressed(boolean b) { other.setPressed(b); }
public void setRollover(boolean b) { other.setRollover(b); }
public void setMnemonic(int key) { other.setMnemonic(key); }
public int getMnemonic() { return other.getMnemonic(); }
public void setActionCommand(String s) {
other.setActionCommand(s);
public String getActionCommand() {
return other.getActionCommand();
public void setGroup(ButtonGroup group) {
other.setGroup(group);
public void addActionListener(ActionListener l) {
other.addActionListener(l);
public void removeActionListener(ActionListener l) {
other.removeActionListener(l);
public void addItemListener(ItemListener l) {
other.addItemListener(l);
public void removeItemListener(ItemListener l) {
other.removeItemListener(l);
public void addChangeListener(ChangeListener l) {
other.addChangeListener(l);
public void removeChangeListener(ChangeListener l) {
other.removeChangeListener(l);
public Object[] getSelectedObjects() {
return other.getSelectedObjects();
then compile this code
in another class file
import javax.swing.*;
import java.awt.*;
public class TristateCheckBoxTest {
public static void main(String args[]) throws Exception {
JFrame frame = new JFrame("TristateCheckBoxTest");
frame.getContentPane().setLayout(new GridLayout(0, 1, 5, 5));
final TristateCheckBox swingBox = new TristateCheckBox(
"Testing the tristate checkbox");
swingBox.setMnemonic('T');
frame.getContentPane().add(swingBox);
frame.getContentPane().add(new JCheckBox(
"The normal checkbox"));
UIManager.setLookAndFeel(
UIManager.getSystemLookAndFeelClassName());
final TristateCheckBox winBox = new TristateCheckBox(
"Testing the tristate checkbox",
TristateCheckBox.SELECTED);
frame.getContentPane().add(winBox);
final JCheckBox winNormal = new JCheckBox(
"The normal checkbox");
frame.getContentPane().add(winNormal);
// wait for 3 seconds, then enable all check boxes
new Thread() { {start();}
public void run() {
try {
winBox.setEnabled(false);
winNormal.setEnabled(false);
Thread.sleep(3000);
winBox.setEnabled(true);
winNormal.setEnabled(true);
} catch (InterruptedException ex) { }
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.pack();
frame.show();
this will give you all the check boxes...
All The Best

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hi
Could anybody who have used labview digital waveform editor
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Minh Tran
Applications Engineer
National Instruments

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Hi,
I am using LV8.0 and NI-6259 DAQ card.
I want to generate a waveform pattern which initially goes to +5v and goes to 0v and then again goes to -5v
and finally goes to 0v.
I have used the waveform pattern generator and have generated 4 kinds of waveform with some particular samples
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The problem is:
When I probe CRO at the Analog output pin of the DAQ card, the pin level will be always at +5v and sometimes
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Please find the attached VI which I have created.
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Thanx in advance,
Yogesh
Attachments:
PWM_sample.vi ‏43 KB

Hello YogeshaYS,
Thanks for your post!
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http://www.ni.com/support

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jp.co.roland.RDUSB00DEDev(1.0.0)
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http://support.apple.com/kb/ht1212
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http://ipod.about.com/od/iphonetroubleshooting/a/Iphone-Recovery-Mode.htm
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~~~~~~~~~~~~~
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Today I met my match with an iPad that had a passcode entered too many times, resulting in it displaying the message ‘iPad is disabled – Connect to iTunes’. This was a student iPad and since they use Notability for most of their work there was a chance that her files were not all backed up to the cloud. I really wanted to just re-activate the iPad instead of totally resetting it back to our default image.
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8. The first stage in the restore process unlocks the iPad, you are basically just cancelling out the restore process as soon as it reactivates the iPad.
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~~~~~~~~~~~~~
Try it and good luck. You have nothing more to lose if it doesn't work for you.
 Cheers, Tom

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