Pci 6602: configuring a frequency-divider with daqmx using labview7.1

i´m using labview 7.1 and the pci6602 counter-board. i want to configure a counter as an frequency-divider with varaibale division-rate, witch is a easy thing to do with the classic "old" daq-driver.
it´s recommended to use the "new" daqmx-driver, and i want to do so, cause i´m using also other ni-devices and want to use the same driver for all of them, but i can´t find any possibility in the daqmx-vi´s to configure such a frequency-divider.
i also couldn´t find any example-code for this problem.
please help me!!

hi, thanks for the answer, but unfortunatly it´s not what i ment.
i need to configure a counter on the pci6602 wich divides down the frequency "f_in" of the square pulses connected to it´s "source" pin by "divisor" and puts out square pulses with frequency f_out=f_in/divisor at another pin. That process should take place only on the 6602-board without using the cpu.
i´ve found the solution already, how to configure a counter on the pci6602 with daqmx like described above. see attachment.
servus
markus
Attachments:
Divider_Config_mw.vi ‏40 KB

Similar Messages

I have the PCI-6602 device and it works with my others programs.

I downloaded the file : LabVIEW Express AI Using External Sample Clock (Scan Clock) from an NI 6602 from this website. but I get the message error :Error -200220 occurred at DAQmx when I run it.

Hi,
Check to make sure your device is present in the Measurement and Automation Explorer under DAQmx devices. You may have configured the device/chassis in Traditional NI-DAQ and not NI-DAQmx. Also check your device ID or string identifier to make sure that it matches with the ID in MAX.
Hope this helps,
Nick

Frequency sweep with DAQmx

The following is the setup :
LV7.1 + PCI_6229 + WIN_XP
For controlling the drive rpm of a servo motor, I need to generate a range of frequencies from 60 to 2500 at 10 Hz intervals.
With the DAQmx polymorphic VI, "CO Pulse Freq" , I can generate a particular frequency.
But if I have to change it on the fly how do I do it ? Like ideally if
there was a property node for the polymorphic VI (!) , I could easily
do it. But it does not have one such node for frequency and hence the
query.
Having started the frequency generation at a default value, I would
like to alter it programmatically without having to stop the VI and
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Hello SG_ENGINEER,
So that is possible, but it is a completely different approach than that mentioned above. You would have to use a continuous analog output program and change the output waveform. Check out the attached example. I modified a shipping example to do an analog output and increment the frequency of the output waveform.
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Continuous_Analog_Out_Update_Sinewave.vi ‏100 KB

CPU runs 100% when logging with DAQmx using card 6229

Hi!
When I start a logging using DAQmx Analog Input the computer CPU runs 100%. This causes the problem that the computer locks and the subsequent steps in the program are left without computer CPU recourse. After the logging is compleet, 1750 samples/10 channels at 250Hz, the program runs on, but the loggfile is at that point useles.
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Idriz "Minnet" Zogaj, M.Sc. Engineering Physics
Memory Profesional
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Hello Idriz!
I just wanted to respond here as well so you know that we have read your post on this very forum. Still waiting for an answer from the US and after that I will forward that information to you.
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Applications Engineer, National Instruments
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Bring Me The Horizon - Sempiternal

Frequency output on a PCI-6602

I was wondering if there is a frequency output port on the PCI-6602. If so, how can I use it?

Hello,
I am not positive of what you mean by a 'frequency output port,' so you will have to forgive me if this response is a little off target.
The 6602 consists of 8 up/down 32-bit counters. Each of these counters has an output line that can be used to output pulse trains at frequencies that you specify. Furthermore, you can also configure your counters to perform frequency measurement.
If you are referring to something similar to the FREQ_OUT pin that exists on our E Series boards, the 6602 does not possess this type of output pin. Instead, you would need to use the standard counters on the 6602.
I hope this helps!
Matthew C
Applications Engineer
National Instruments

Counter using PCI-6602 for multi output

Hi guys,
currently I tried to control a linearmotor using PCI-6052E and PCI-6602.
The questions is, how to use PCI-6602 to be a counter which will be converted to several output (multioutput):
(1) converted to position >> 1count = ...[mm] --> position measurement
(2) converted to voltage >> 1count = ...[mV] or [V] --> voltage measurement
(3) converted to current >> 1count = ...[mA] or [A] --> current measurement
(4) converted to velocity >> 1count = ...[mm/s] --> velocity measurement
(5) converted to acceleration >> 1count = ...[mm/s^2] --> acceleration measurement
(6) converted to force >> 1count = ...[N] or [kg.mm/s^2] --> force/load measurement
(7) converted to frequency >> 1count=...[Hz] --> frequency measurement
(i) Please assist me how to connect the driver's encoder (Ch. A A/ B B/ Z Z/) with PCI-6602, so I can get all informations above (7 measurements). What/which port of PCI-6602 connect to where from the driver.
(ii) Please assist me how to connect the feedback signal to the PC. What/which port of PCI-6602 connect to PC.
(iii) How to test those 7 measurements above using Measuremant and Automation Explorer (MAX) ver.4.4.1?
Thank you for your kindly help and assistance.
Best wishes,
hendro

Dear Jochen,
(1) Principally, I'd like to use PCI-6602 to be a motion encoder also be a counter (Is it possible? Due to the manual, it is possible). I expect to have all information, such as position, time, velocity, etc. from that motion encoder (or at least the position and time). It is also expected of using PCI-6602 to do all measurements that I mentioned before . My meaning is, after having a signal from the counter, that 'count' will be converted to desire units under other programs. So, in this case, PCI-6602 is only used to get the 'count'.
Simplified, the voltage command will send to the system (linear motor) through PCI-6052E (-10V to 10V). The actual position or other actual information will be catched (read) by using PCI-6602 (as a motion encoder, also as a counter). Then, this actual position will be used as a feedback, that will be compared to desired position.
Is that also possible to use PCI-6602 be a motion controller + a counter + a frequency measurement in a same time parallely?
I don't decide yet (I don't know) which acquisition rate will be needed/required, higher is better.
(2) I'd like to apply an adaptive robust controller (yes, it is a closed loop system) under matlab with their feature called Real-Time-Workshop instead of using LV.
(3) Power drive for the linear system will be driven by AC servo drive.
Thanks for your help before,
Warmly regards,
hendro

Frequency divide by N doesn't work on Counter-Timer PCI-6602

Hello everybody,
I tried to do something basic ( ?) with this Counter-Timer 6602 Board, and it doesn’t work.
So I hope some people with more experience than me could understand what happens here.
1) What I need:
I need to generate 4 synchonised clocks, whose periods will be multiple of 1 ms.
2) What I have:
LabVIEW 7.0 and a PCI-6602 Counter-Timer Board in a DELL PC running under XP pro.
The PCI-6602 Counter-Timer Board has 8 counter timers named CTR 0, CTR 1, ... CTR7.
3) What I have already done, and that worked:
- Generate a 1 kHz “Master Clock” signal from CTR 4, configured by “Continuous Pulse Generator Config.vi” (found in “Data Acquisition, Counters...).
- configure CTR 0 and CTR 1 to work as frequency dividers, by use of “Down Counter or Divider Config.vi”.
- Apply the output signal of CTR 4 (OUT ) to the SOURCE inputs of CTR 0 and CTR 1 by means of physical wiring in the SCB-68 connection box.
When I do this, I get two nice secondary clock signals on my oscilloscope screen, ( with periods = 3 ms, or 5 ms or whatever multiples of 1 ms I choose) from CTR 0 and CTR 1 outputs , very clean and perfectly in phase with the 1 kHz Master Clock.
So far, so good...
But I still need 2 more secondary clocks...
One would say: “No problem, do the same trick with two other counters...” Well, not so simple, it seems...
4) What I tried to do, and that didn’t work:
When I try to do the same frequency division with any of the remaining counters, (CTR2 to CTR7), the program stops and I get an error “ –10020 : Time base not valid “.
I can’t figure out what happens here: I thought any counter could be configured to work as a frequency divider, but it seems not to be so, and I am stuck here.
Has anyone an idea about how to fix this type of problem?
Attached file: hor_div02New.vi
Attachments:
hor_div02New.vi ‏123 KB

karolik,
I'm just adding a followup in English. As Marc L. mentioned, the particular vi named "Down Counter or Divider Config" isn't compatible with the 6602. While the 6602 does have the ability to generate 4 synchronized clocks, a different syntax is needed. Here's how I'd do it:
Traditional NI-DAQ
1. Configure a continuous pulsetrain on CTR 4. Route its output to, say, RTSI 4. Don't start it yet.
2. Configure CTR 0,1,2,3 for continuous pulsetrains using RTSI 4 as their "timebase source." Start them.
3. Start the CTR 4 pulsetrain.
4. Now CTR's 0-3 should generate separate clocks with synchronized phasing.
DAQmx
1. Configure a continuous pulsetrain on CTR 4. Don't start it yet.
2. Configure CTR 0,1,2,3 for continuous pulsetrains using "Ticks" for units. Use a DAQmx property node (probably Channel property node, but am not 100% sure and don't have a LV PC handy to check) to specify that the "ctr4 internal output" should be used as the timebase. Start them.
3. Start the CTR 4 pulsetrain.
4. Now CTR's 0-3 should generate separate clocks with synchronized phasing.
-Kevin P.

Error -200141 when doing buffered events with DAQmx and PCI-6602

When doing buffered events with DAQmx and PCI-6602 I get error 200141 - Data was overwritten before it could be read by the system.
This error is generated ONLY with random inputs >200/sec.
My setup is :
DAQmxCreateCIVCountEdges(taskhandle,"Dev1/ctr3"....
DAQmxCG+FGSampClkTiming(taskhandle,"/Dev1/FPI35",...
DAQmxSetCICountEgdesChan(taskhandlem,"", "/Dev1/80MHZTimeBase")
DAQmxSetChanAttribute(taskhandlw,",",DAQmx_CI_DataXferMech,DAQmx_Val_DMA,0);
Can somebody help ?

i'm getting the same Error-200141, while reading semiperiods. (Meas_Buffered semiperiod continous)
while loop ex.rate seems to be pulsewidth*no.Samples to read. in my case PW=60ms
Input buffer size measured with Property node= 10000
why this error happens?? i cant use any mode other than implicit timing for semi-period measurement right??
more info: all the ai channels are used ~ 16 differencial.
i found one solution which is _ reinitializing the whole task if an error occur. is this the right way??
Kudos always welcome for helpful posts
Attachments:
Counter_1_Meas Buffered Semi-Period-Continuous_main_lv09.vi ‏34 KB
SemiPeriod_Reconnect Counter on Error.vi ‏35 KB

Genral How do I get syncronized encoders to work with a PCI-6602

I am new to the DAQmx and need some general help writting VB code that works.
I can get some things to work, but others don't work at all and I don't have enough knowledge of these drivers to get up the learnign curve hump.
I wanted to post this as a follow-up
to the thread:
http://forums.ni.com/ni/board/message?board.id=40&message.id=5430&query.id=215100#M5430
But I couldn’t figure out how.
Anyway, my problem is that I will
eventually have to do much the same thing as the above thread with two encoders in
sync.
I have a pci-6602 card, and my code
snippet is at the bottom The 6602 doesn't have the analog in to syncronize to like the thread above
(yes, it is in Visual basic
6)
I can’t figure out the
DAQmxCfgSampClkTiming.   Why do I want to have a sample clock at all?   (okay,
when I have two channels synced I do – but this sample I want to get working and
I don’t see why)?
Can’t I just get a new counter value
with each quadrature input change?   (That’s what the DEV/PFI39 is, the same as
encoder channel A )
Okay, so hopefully you tell me how
to get that to work.
Next question: What can I use for
the DAQmxCfgSampClkTiming when I am doing two channels in sync? Nothing seems
to work, and I have tried a bunch of things.
Brynn
Rogers
DeltaTech
Controls
952-403-7400
x431
//// code that doesn't really work. "Dev1/PFI39" is the channel A encoder input, I just want new data whenever the encoder changes (for now)
    ' DAQmx Configure
Code
    DAQmxErrChk
DAQmxCreateTask("count", TaskHandle)
    TaskIsRunning =
True
    DAQmxErrChk
DAQmxCreateCIAngEncoderChan(TaskHandle, "Dev1/ctr0", "",
DAQmx_Val_EncoderType2_X4, 0, 0#, DAQmx_Val_EncoderZIndexPhase1_AHighBHigh,
DAQmx_Val_AngleUnits2_Ticks, 500, 0#, "")
    DAQmxErrChk
DAQmxCfgSampClkTiming(TaskHandle, "Dev1/PFI39", 1, DAQmx_Val_Rising,
DAQmx_Val_AcquisitionType_FiniteSamps, samples)
    'DAQmx Start
Code
    DAQmxErrChk
DAQmxStartTask(TaskHandle)
    ' DAQmx Read
Code
    DAQmxErrChk
DAQmxReadCounterF64(TaskHandle, -1, 0.05 * samples, data(0), samples, ReadCount,
ByVal 0&)
    ' All done!
StopTask
    'DAQmxErrChk
DAQmxStopTask(TaskHandle)
    'Stop task isn't needed because
Clear Task also stops task
    DAQmxErrChk
DAQmxClearTask(TaskHandle)
Solved!
Go to Solution.

Okay, Here is the working routine to get syncronous data from two encoders, and it seems to work okay.
   I have this working with my two 2000 CPR encoders, we'll see how it works when I get the 500,000 CPR encoders later.
The three big problems that caused it to not work were:
1)   Theduty cycle argument for the createCOpulsechanfreq task needed to be between 0 and 1. I had '50.0' before, it works when it is '0.5'
2) The sample timebase that I used (ctr7) needed to be started before either of my two angle encoder tasks were created
3) The "dev/PFI8" string needed to be changed to "/dev/PFI8". I don't really understand why, but that was what seemed to fix it all.
So this question has been answered...    Now I have a different problem while reading 8 PWM values at once with the Semiperiodcounter, which I will post in a new a different thread.
Thanks!
'''''''''''''''''' Working code here
Public Sub Aquireposition(samples As Long, data0() As Double, data1() As Double)
Dim BaseTaskHandle    As Long
Dim encoder0TaskHandle    As Long
Dim encoder1TaskHandle    As Long
Dim TaskIsRunning As Boolean
Dim ReadCount As Long
Dim strCounterString As String
   On Error GoTo ErrorHandler
    DAQmxErrChk DAQmxCreateTask("base", BaseTaskHandle)
    DAQmxErrChk DAQmxCreateCOPulseChanFreq(BaseTaskHandle, "/Dev1/ctr7", "base", DAQmx_Val_FrequencyUnits2_Hz, DAQmx_Val_Level1_Low, 0#, 200#, 0.5)
'Specify continuous timing
    DAQmxErrChk DAQmxCfgImplicitTiming(BaseTaskHandle, DAQmx_Val_AcquisitionType_ContSamps, 200)
     'DAQmx Start Code
    DAQmxErrChk DAQmxStartTask(BaseTaskHandle)
' DAQmx Configure Code
    DAQmxErrChk DAQmxCreateTask("encoder", encoder0TaskHandle)
    TaskIsRunning = True
    DAQmxErrChk DAQmxCreateCIAngEncoderChan(encoder0TaskHandle, "/Dev1/ctr0", "", DAQmx_Val_EncoderType2_X4, 0, 0#, DAQmx_Val_EncoderZIndexPhase1_AHighBHigh, DAQmx_Val_AngleUnits2_Degrees, 500, 0#, "")
    DAQmxErrChk DAQmxCfgSampClkTiming(encoder0TaskHandle, "/Dev1/PFI8", 1, DAQmx_Val_Rising, DAQmx_Val_AcquisitionType_FiniteSamps, samples)
    ' second encoder
    DAQmxErrChk DAQmxCreateTask("encoder1", encoder1TaskHandle)
    TaskIsRunning = True
    DAQmxErrChk DAQmxCreateCIAngEncoderChan(encoder1TaskHandle, "/Dev1/ctr1", "", DAQmx_Val_EncoderType2_X4, 0, 0#, DAQmx_Val_EncoderZIndexPhase1_AHighBHigh, DAQmx_Val_AngleUnits2_Degrees, 500, 0#, "")
    DAQmxErrChk DAQmxCfgSampClkTiming(encoder1TaskHandle, "/Dev1/PFI8", 1, DAQmx_Val_Rising, DAQmx_Val_AcquisitionType_FiniteSamps, samples)
    'DAQmx Start Code
    DAQmxErrChk DAQmxStartTask(encoder0TaskHandle)
    DAQmxErrChk DAQmxStartTask(encoder1TaskHandle)
    ' DAQmx Read Code
    DAQmxErrChk DAQmxReadCounterF64(encoder0TaskHandle, -1, 0.05 * samples, data0(0), samples, ReadCount, ByVal 0&)
    DAQmxErrChk DAQmxReadCounterF64(encoder1TaskHandle, -1, 0.05 * samples, data1(0), samples, ReadCount, ByVal 0&)
    ' All done! StopTask
    'DAQmxErrChk DAQmxStopTask(TaskHandle)
    'Stop task isn't needed because Clear Task also stops task
    DAQmxErrChk DAQmxClearTask(encoder0TaskHandle)
    DAQmxErrChk DAQmxClearTask(encoder1TaskHandle)
    DAQmxErrChk DAQmxClearTask(BaseTaskHandle)
    Exit Sub
ErrorHandler:
'   MsgBox "Error: " & Err.Number & " " & Err.Description, , "Error"
'    mlngPWM_ErrorCount(lngChannel) = mlngPWM_ErrorCount(lngChannel) + 1
    'MainForm.PWMErrorCount = "Errors(" & lngChannel & "): " & mlngPWM_ErrorCount(lngChannel)
    Resume Next
End Sub

Reading encoders with PCI 6602

Hi,
I'd like some help to understand correct general purpose counter (GPCTR)
calling sequence.
Once configured with a GPCTR_Control (..ND_PROGRAM)call, it is not clear
what should be done, if at a later stage one would like to set (write) a
specific value to the counter. I suppose the counter should be un-armed (with
a GPCTR_Control (..ND_RESET)call). In this case is the previous configuration
lost (things defined with the Set_Application and Change_parameter calls)
If negative, what is the shortest sequence call to set a new value to a counter
already armed ?
Please mail the answer to
[email protected]
Thank you

Hi Sweety,
What type of measurement do you want to make with the servo motor (edge count, frequency, pulse width, etc.)? What wires are output from the servo motor? Depending on the answers to these questions it will give more information into whether you need to use the gate terminal or just the source.
I would recommend to review the User manual for the PCI-6602 (referenced below) because it has information on the pinouts (pg 31) and different application considerations. Also, the M series user manual discusses some of the different measurements (in the counter section) and how to make the proper connections.
660x User Manual
http://www.ni.com/pdf/manuals/372119a.pdf
M Series User Manual
http://digital.ni.com/manuals.nsf/websearch/2025C99AB0614F9E8625748000577B9A
Regards,
Jordan F
National Instruments

Count digital events on a Counter with pci-6602 with callback on CVI

Hi,
I'm using a PCI-6602 card with CVI 8.5 and I need to trig on event.
On every pulse I received, I need to do some actions like increasing a counter, send a message on Rs232 etc.. I don't want to do any loop checking that the counter value has changed. I would like to use a callback to execute this code only on the edge or counter value event.
My problem is that I don't know which function can do this. Is there any way to get an event on a pci-6602?
Thanks
James
Solved!
Go to Solution.

Hello.
It's completely possible to create a callback that will allow you to do what you want when a edge will occur on an external signal you define.
To do this, you can for exemple create a counting edges task that will use one of the 6602 counters,and the set your external signal to be the source of your sample clock.You'll then be able to register a callback with the function DAQmxRegisterSignalEvent, and your callback will be called each time an edge will occur on your specified sample clock source.
Here's 2 links that explain the events in DAQmx and how to handle them in CVI. The example ReadDigChan-ChangeDetectionEvent.pr that ships with DAQmx examples (Hardware Input and Output<<DAQmx<<Digital measurements) can be very useful to understand how to do. This example creates a signal event callback to detect change detection for digital inputs.
Regards.

How to visualise continues Data aquisition from a PCI 6602 with 2121 BNC connector board in C++ ?

Hello everyone,
We are trying to get on the screen the aquired pulses from our PCI 6602 with a 2121 BNC connector board, from several devices. We are able to read the data and save without problem, but we cannot look at it while we are measuring. Anybody has an idea to how program this in C++ ? Any suggestion is welcome!
Thanks for the help

Hi,
try to look for some example programs and Tutorials:
Examples Results
http://search.ni.com/nisearch/app/main/p/bot/no/ap/tech/lang/en/pg/1/sn/catnav:ex/q/DAQmx%20C%2B%2B/...
Tutorials Results
http://search.ni.com/nisearch/app/main/p/bot/no/ap/tech/lang/en/pg/1/sn/catnav:tu/q/DAQmx%20C%2B%2B/...
You should also have a look at the "C Reference Help" which is installed with the NI DAQmx driver.
Acquire N Scans (Visual C++ 6.0, CW++, NI-DAQ)
http://zone.ni.com/devzone/cda/epd/p/id/207
Continuous Analog Acquisition with Producer Consumer Architecture in C#
https://decibel.ni.com/content/docs/DOC-4253
Good Luck!
Matteo

PCI-4472 not functioning with DAQmx Linux 8.0

We have multiple systems with PCI-4472 cards in them running SUSE Linux, and all but one of them function properly. On the particular system in question (which has identical hardware and software to the functioning systems), nilsdev lists no devices. Further investigation revealed the following excerpt from dmesg:
allocation failed: out of vmalloc space - use
vmalloc=<size> to increase size.
Unable to handle kernel NULL pointer dereference at virtual address
000002fc
printing eip:
f9ede608
*pde = 00000000
Oops: 0002 [#1]
SMP
Modules linked in: nidsark nistcrk nicdrk nistc2k nimru2k nimxpk ipt_pkttype
ipt_LOG ipt_limit nipxirmk nidimk nimsdrk nidmxfk nimxdfk nimstsk nimdbgk
niorbk speedstep_lib freq_table nipalk nikal snd_pcm_oss snd_mixer_oss snd_seq
snd_seq_device button battery ac af_packet video1394 raw1394 edd ide_cd cdrom
sk98lin ohci1394 ieee1394 snd_intel8x0 snd_ac97_codec snd_ac97_bus snd_pcm
snd_timer snd soundcore snd_page_alloc i2c_i801 i2c_core hw_random generic
ehci_hcd intel_agp agpgart uhci_hcd usbcore shpchp pci_hotplug ip6t_REJECT
ipt_REJECT ipt_state iptable_mangle iptable_nat iptable_filter ip6table_mangle
ip_conntrack ip_tables ip6table_filter ip6_tables ipv6 parport_pc lp parport
nls_iso8859_1 nls_cp437 vfat fat nls_utf8 ntfs dm_mod ext3 jbd sg fan thermal
processor ata_piix libata piix sd_mod scsi_mod ide_disk ide_core
CPU:    1
EIP:    0060:[<f9ede608>]    Tainted: PF    U VLI
EFLAGS: 00010246   (2.6.13-15-smp)
EIP is at nidsark-unversioned0004550+0x70/0x11e4 [nidsark]
eax: 00000000   ebx: f6be1d68   ecx: 00000000   edx: 00000000
esi: f6514770   edi: f6514760   ebp: f6be1964   esp: f6be1958
ds: 007b   es: 007b   ss: 0068
Process nipalsm (pid: 6952, threadinfo=f6be0000 task=c2344540)
Stack: f6be1d68 f6514b68 f6be1d68 f6be197c f9efb4d0 f6514760 f6be1d68 f6514b68
       f6b82690 f6be1a1c f9e93409
f6514b68 f6be1d68 f6514760 f6be1d68 00000004
       f6be1d6c 00000100 f6be19b8
f95bbf19 f6be1bd0 f6be1d6c f6be1d6c f6be1b98
Assuming that the NULL pointer deference was caused by the preceding failed vmalloc, I attempted to increase the vmalloc size to 512MB (which is certainly overkill). This did nothing to clear the error. One final detail is that this computer dual boots Windows, while the others have only ever run Linux. It shouldn't matter, but I feel it is worth mentioning in the event that DAQmx for Windows somehow mangles the configuration of the card to a point where it no longer functions with DAQmx for Linux. It should be noted that the card works just fine under Windows.
I have the output from niSystemReport available in the event that it will help in diagnosing the problem, but am unable to attach it due to the size restriction of this forum. The call trace from dmesg is in the attached file. Any help would be greatly appreciated.
-Peter Lisherness
Message Edited by PeterLisherness on 07-10-2006 12:36 PM
Attachments:
dmesg.txt ‏5 KB

Peter,
I have a couple of other questions which might help us narrow this down.
1. You said both the working and non working machines have identical hardware and software. I'm assuming this means both machines are Pentium 4 3.2 GHz SMP machines 2 GB of RAM, have the same motherboards etc. I also assume that this means that they also are both running SUSE 10.0 and have the same updates, and kernel versions. Is this correct? A system report from the working machine could also help us confirm this.
2. Can you easily reproduce the Oops? When does it occur? Does it happen when the machine first boots up, or do you have to run nilsdev first?
Thanks,
Shawn B.
Use NI products on Linux? Come join the NI Linux Users Community

PCI-6602 Triggered event counting DAQmx

Hi
I'd like to use simple event counting using PCI-6602 (DAQmx) with an internally generated trigger pulse.
But I don't know how to figure out the error message when I use DAQmx Start Trigger.vi
Thanks
Kyu Young
Attachments:
EventCountingTrig.vi ‏21 KB

I'm sorry. I've solved it.

Can the PCI-6602 card be configured for 3.3 volts?

I would like to be able to configure my pci-6602 card to output 3.3 volt signals either in software or with MAX. Can this be done?

The 6602 uses only 5V logic for it's driven outputs, but there is a Tri-State Enable feature which drives the output to high impedance instead of hi. This allows you to pull up the outputs to the required logic voltage.
The Tri-State Enable is found using the wired OR map in the DIO Port Config.vi

Pci 6602: configuring a frequency-divider with daqmx using labview7.1

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