Reading in values from file

Discussion in 'VHDL' started by bubbagumper6, Apr 6, 2011.

  1. bubbagumper6

    bubbagumper6

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    I'm trying to implement an image processing system in Xilinx and right now I'm stuck on reading in the values. I'm using PGM image format because it stores the pixel values in ascii format so it's easy to to read them in. However the first 4 lines I need to read in and disregard (don't need the data) but I keep getting an error. Below is the segment of code I'm referring to. It gives me an error on the bolded part.

    It says: VHDL source expression not yet supported: 'DerefOp'.

    I tried changing the row'length expression to row /= null and I just get the same error but with 'DerefOp' replaced with 'NullValue'

    Any ideas?
     
    Last edited: Apr 6, 2011
    bubbagumper6, Apr 6, 2011
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