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epissadakis's avatar
epissadakis
Icon for New Contributor rankNew Contributor
3 years ago
Solved

IO_SERDES_DPA error in place and route step

Hello, I am trying to implement an RTL design which contains two LVDS SERDES receivers in SOFT-CDR mode . The received data will be redirected to LVDS SERDES transmitters and forwarded to ouput ...
  • mbc's avatar
    mbc
    2 years ago

    I think that is the problem.

    I had the same error when using pins from the same bank in two RX SERDES IP. Error got solved after changing the pins location of the inputs of one of the receivers, so using only one receiver IP for each bank works in my case.

AqidAyman_Altera's avatar
AqidAyman_Altera
Icon for Regular Contributor rankRegular Contributor
2 years ago

Hi Manolis,


You must place RX interfaces in one I/O bank and each bank has only 12 PCLK resources, there are only 12 soft-CDR channels available.


To find out which pin pairs can support soft-CDR channels in each bank, refer to the device pin out file. In the device pinout file, the "Dedicated Tx/Rx Channel" column lists the available LVDS pin pairs in a LVDS<bank number>_<pin pair><p or n> format. If the value of <pin pair> is an even number, the pin pair supports soft-CDR mode.


Do you aware on this information?