Unconstrained array of unconstrained records, VHDL-2008, Quartus Prime 16.0.0

Altera_Forum · ‎08-08-2016

Hi,

I am trying to use VHDL-2008 in Quartus Prime 16.0.0

I have a package with declaration of unconstrained array of unconstrained records type:


   type packet_uinstr_t is record
      src_col        :  std_logic_vector; --! address to GMII buffer, src_row is implicit  (position in the signal itself) (MSB in MVB)
      dst_row        : std_logic_vector; --! address to PCIE buffer
      dst_col        : std_logic_vector; --! address to PCIE buffer
      barrier_flag   : std_logic_vector; --! barrier flag, probably just std_logic (LSB in MVB)
   end record;

Then I have entity with this type:


   RX_PACKET_UINSTRS          : in  packet_uinstrs_t(0 to INPUT_ROWS-1)(src_col(log2(INPUT_COLS)-1 downto 0),
                                    dst_row(log2(OUTPUT_ROWS)-1 downto 0), dst_col(log2(OUTPUT_COLS)-1 downto 0),
                                    barrier_flag(BARRIER_WIDTH-1 downto 0));

In synthesis I get this error:

Error (10410): VHDL Type Conversion error at planner_ent.vhd(80): Type Conversion near text or symbol "packet_uinstr_t" must have one argument

I already specified VHDL-2008 in "Compiler Setting/VHDL Input" and in Files/Properties/HDL version for each file.

Question: Is this construct supported in Quartus Prime? This very same code is perfectly fine with Modelsim.

Thanks for any info...

[SOLVED]

in Quartus Prime PRO 16.0 it's perfectly working...

Altera_Forum · ‎08-08-2016

Quartus Support for VHDL 2008 is rather limited and far from full. Reading in the help, http://quartushelp.altera.com/current/#hdl/vhdl/vhdl_list_2008_vhdl_support.htm, Quartus supports unconstrained arrays, but it doesnt specify unconstrained records.

I suggest filing an enhancement request via Mysupport.

adrianf0 · ‎09-19-2018

Is this feature finally supported in Quartus 18.0 ?

Tricky · ‎09-19-2018

Quartus Prime Pro has had full 2008 support since v16 or 17.

Prime standard has a limited subset of 2008 feature support. Unconstrained records is not one of them.

Prime standard is pretty much ignored now by the devs.

adrianf0 · ‎09-19-2018

@Tricky Thank you for your reply. Currently I work with Cyclone V and unfortunately, according to my understanding, Quartus Pro doesn't support it.