Counter pulse TTL PCIe-7852R (FPGA)

[DaletCohen]

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Hello everybody, anyone now how can I transferring data ( pulses) from Array channels ?

i need to get data from numbers of channels and keep all the data on the host (pc) 

in high freq .

i using fpga PCIe -7852R and LabVIEW fpga

thanks

[hovo90]

Hi,

Could you tell please at what freq. do you trying to keep data?

Could you more detailed explain your problems? 

[DaletCohen]

Hi , thanks for your answer. 
I try to keep data in high frequency (20/30/40Mhz ) 

I need to transferring pulses from N channels and keep the time that they come and from which Channel come from . 

At the general setting i saw that I can to using just for 3 DMA FIFO .

 
I really need some help with that . 

thanks a lot . 
mall bless . 

[hovo90]

Hi,

Could you tell me please, you are trying to detect input digital signals that have 20/30/40MHz rate?

Do I understand everything right? 

[DaletCohen]

Hi , yes I need to detect from some channels , and keep the data on the host 

the data is ( times and which channel come from ) 

 thanks hovo . 

[hovo90]

Hi,

According to PCIe-7852 datasheet on page 4 the maximum frequency of input digital signal can be 20MHz, it means that you can't detect digital signal with frequency higher than 20MHz. 

 For detailed explanation of terminology of NI Multifunction Reconfigurable I/O (R Series) modules see the link below.

https://www.ni.com/en-us/support/documentation/supplemental/18/specifications-explained--ni-multifun...

Best regards.

[DaletCohen]

Thanks so much 🙂