No timer on revH of PCI-DIO-96

[Bassman]

We recently purchased two new PCI-DIO-96 boards and when we put them in found that our timing routines using the 82C53 were no longer working.  Looking at the board we noticed that the chip is not installed on the board.

We are looking at a software workaround for the short term, but it is unacceptable for the production testing we are doing. 

Has anyone else dealt with this problem?  What's the fix?

[Laura F.]

Hi Bassman,

The 82C53 counter/timer chip is no longer used on our newer boards.  The new boards you have purchased do not have any sort of counter/timer chip on them.   What type of DAQ board did you replace?  Perhaps there is a better replacement for you.

Thanks,

Laura 

[Bassman]

We were using the PCI-DIO-96 revE, hence we thought the new version H would be a direct drop-in replacement.  I will say that I am extremely dissapointed that there was no mention of this in the document discussing changes to the new rev. H. The bus driver replacement was thoroughly touched on but not the timer change.  The documentation on the CD still references the timer chip as well.  It seems a great oversight that this was not clearly presented either on line at the product web page or in the documentation supplied.  Count me as one frustrated and disappointed customer.

[AA Dan]

Hello Bassman,

The OKI 82C53 and 82C55 parts went EOL.  NI has found replacement parts for the 82C55, but there are no drop in replacements for the 8253.  Because of that, and the fact that the 82C53 functionality is not supported by the NI-DAQ driver, and we had no reports of anyone actually using that functionality using RLP and their own custom driver, we changed the mainstream version of the PCI-DIO-96 to no longer have the 82C53 chip physically on the board.  However, there is an orderable version of the PCI-DIO-96 that still has the 82C53 on it.  This product is only offered to existing customers who have already created their applications around this functionality because of the somewhat limited supply of 82C53's.  NI has made a life time purchase of 82C53's that should be sufficient to handle your needs, and the needs of other PCI-DIO-96 customers who actually use the 82C53 given that we removed it from the mainstream version.

[AA Dan]

Hello Bassman,

The OKI 82C53 and 82C55 parts went EOL.  NI has found replacement parts for the 82C55, but there are no drop in replacements for the 8253.  Because of that, and the fact that the 82C53 functionality is not supported by the NI-DAQ driver, and we had no reports of anyone actually using that functionality using RLP and their own custom driver, we changed the mainstream version of the PCI-DIO-96 to no longer have the 82C53 chip physically on the board.  However, there is an orderable version of the PCI-DIO-96 that still has the 82C53 on it.  This product is only offered to existing customers who have already created their applications around this functionality because of the somewhat limited supply of 82C53's.  NI has made a life time purchase of 82C53's that should be sufficient to handle your needs, and the needs of other PCI-DIO-96 customers who actually use the 82C53 given that we removed it from the mainstream version. 

[AA Dan]

Hello Bassman,

The OKI 82C53 and 82C55 parts went EOL.  NI has found replacement parts for the 82C55, but there are no drop in replacements for the 8253.  Because of that, and the fact that the 82C53 functionality is not supported by the NI-DAQ driver, and we had no reports of anyone actually using that functionality using RLP and their own custom driver, we changed the mainstream version of the PCI-DIO-96 to no longer have the 82C53 chip physically on the board.  However, there is an orderable version of the PCI-DIO-96 that still has the 82C53 on it.  This product is only offered to existing customers who have already created their applications around this functionality because of the somewhat limited supply of 82C53's.  NI has made a life time purchase of 82C53's that should be sufficient to handle your needs, and the needs of other PCI-DIO-96 customers who actually use the 82C53 given that we removed it from the mainstream version.  You

[AA Dan]

Hello Bassman,

The OKI 82C53 and 82C55 parts went EOL.  NI has found replacement parts for the 82C55, but there are no drop in replacements for the 8253.  Because of that, and the fact that the 82C53 functionality is not supported by the NI-DAQ driver, and we had no reports of anyone actually using that functionality using RLP and their own custom driver, we changed the mainstream version of the PCI-DIO-96 to no longer have the 82C53 chip physically on the board.  However, there is an orderable version of the PCI-DIO-96 that still has the 82C53 on it.  This product is only offered to existing customers who have already created their applications around this functionality because of the somewhat limited supply of 82C53's.  NI has made a life time purchase of 82C53's that should be sufficient to handle your needs, and the needs of other PCI-DIO-96 customers who actually use the 82C53 given that we removed it from the mainstream version.  You can

[AA Dan]

Hello Bassman,

The OKI 82C53 and 82C55 parts went EOL.  NI has found replacement parts for the 82C55, but there are no drop in replacements for the 8253.  Because of that, and the fact that the 82C53 functionality is not supported by the NI-DAQ driver, and we had no reports of anyone actually using that functionality using RLP and their own custom driver, we changed the mainstream version of the PCI-DIO-96 to no longer have the 82C53 chip physically on the board.  However, there is an orderable version of the PCI-DIO-96 that still has the 82C53 on it.  This product is only offered to existing customers who have already created their applications around this functionality because of the somewhat limited supply of 82C53's.  NI has made a life time purchase of 82C53's that should be sufficient to handle your needs, and the needs of other PCI-DIO-96 customers who actually use the 82C53 given that we removed it from the mainstream version.  You can order

[AA Dan]

Hello Bassman,

The OKI 82C53 and 82C55 parts went EOL.  NI has found replacement parts for the 82C55, but there are no drop in replacements for the 8253.  Because of that, and the fact that the 82C53 functionality is not supported by the NI-DAQ driver, and we had no reports of anyone actually using that functionality using RLP and their own custom driver, we changed the mainstream version of the PCI-DIO-96 to no longer have the 82C53 chip physically on the board.  However, there is an orderable version of the PCI-DIO-96 that still has the 82C53 on it.  This product is only offered to existing customers who have already created their applications around this functionality because of the somewhat limited supply of 82C53's.  NI has made a life time purchase of 82C53's that should be sufficient to handle your needs, and the needs of other PCI-DIO-96 customers who actually use the 82C53 given that we removed it from the mainstream version.  You can order the

[AA Dan]

Sorry, there seemed to be a glitch in the discussion forum system.   The P/N that you need to order to get the 82C53 functionality is

779196-50

Please contact your NI sales representative for an exchange of the boards that do not work for you.

I hope that helps you out.  Have a great day.  Sorry for the inconvenience and we apprecaite your patience in working through this EOL situation.  We hope that we have provided you a way to maintain your existing application by setting up this separate part number.