Forum Discussion

obruendl's avatar
obruendl
Icon for New Contributor rankNew Contributor
9 months ago

RAM inference not working for initialized RAM

According to documentation RAM initialization should work in VHDL by simply adding an initialization value to the memory array. https://www.intel.com/content/www/us/en/docs/programmable/683082/21-3/...
Hdl
ShengN_altera's avatar
ShengN_altera
Icon for Super Contributor rankSuper Contributor
9 months ago

Hi,


You may try with the pro version. The pro version has 30-day evaluation license.


Btw, I had done the testing in pro version and it works well.


Thanks,

Regards,

Sheng


  • FvM's avatar
    FvM
    Icon for Super Contributor rankSuper Contributor
    9 months ago
    Hi,
    despite of license requirements, Pro version is not a solution because you don't have a choice to use either Std/Lite or Pro version for a specific FPGA series.
    Although I'm frequently using RAM inference in my code, with both Quartus versions, I must confess that I'm surprised about the observed behaviour. Curiously Quartus infers RAM for 1 bit and registers for the other 15 bits of 16 Bit word in the present example. In fact the problem doesn't occur with Altera suggested RAM coding style.