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Altera_Forum
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12 years ago

Alternative to LPM_ROM needed

Helhlo everyone, I am trying to implement a ROM with a slightly different behavior than the LPM_ROM from Altera. It should also have a memory initialization file. I have huge problems getting i...
Altera_Forum's avatar
Altera_Forum
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12 years ago

You can have a look at this document (http://www.altera.com/literature/hb/qts/qts_qii51007.pdf), on pages 14-33 and over. It looks like there is a way to read an initialization file in Verilog, but not in VHDL. You'll probably have to write the whole contents as an VHDL array, as described on example 14-30.

(as a sidenote, srecord (http://srecord.sourceforge.net/) is a tool that can convert from and to lots of different EEPROM formats, and it can generate a VHDL table for you from a .hex or .mif file)