You will get this error message if you instantiate a LPM_RAM_DP component in your
VHDL design file using the LPM_COMPONENTS package and have not specified a
value for the LPM_FILE parameter.
The component declaration for LPM_RAM_DP in the LPM_COMPONENTS package
file (lpm_pack.vhd) does not assign a default value to the LPM_FILE parameter.
Therefore, if you do not assign a value to the LPM_FILE parameter when
instantiating this function in your code, you will receive the above error.
A corrected version of this package file lpm_pack.vhd (filename consists of only lower-case characters) has been posted to the Altera FTP site in the /outgoing directory. The current lpm_pack.vhd file included with the MAX PLUS II software should be replaced with this new one.
To replace this file, do the following steps:
- Turn off the read-only attribute for all of the files in the appropriate library directory (<MAX PLUS II directory>\VHDL87\lpm or <MAX PLUS II directory>\VHDL93\lpm).
- Overwrite the existing package file in the appropriate VHDL library directory with the new one.
- Compile the package file in the MAX PLUS II software.
- Re-enable the read-only attribute for all of the files in the directory.