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-- See the License for the specific language governing permissions and
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-- See the License for the specific language governing permissions and
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-- limitations under the License.
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-- limitations under the License.
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--
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--
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-------------------------------------------------------------------------------
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-------------------------------------------------------------------------------
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LIBRARY IEEE, common_pkg_lib, common_ram_lib, common_mult_lib, technology_lib;
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LIBRARY IEEE, common_pkg_lib, astron_ram_lib, astron_multiplier_lib;
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USE IEEE.std_logic_1164.ALL;
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USE IEEE.std_logic_1164.ALL;
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USE technology_lib.technology_select_pkg.ALL;
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--USE technology_lib.technology_select_pkg.ALL;
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USE common_pkg_lib.common_pkg.ALL;
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USE common_pkg_lib.common_pkg.ALL;
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USE common_ram_lib.common_ram_pkg.ALL;
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USE astron_ram_lib.common_ram_pkg.ALL;
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-- Purpose:
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-- Purpose:
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-- Maintain a set of accumulators and output their values at every in_sync.
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-- Maintain a set of accumulators and output their values at every in_sync.
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-- Description:
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-- Description:
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-- . The products of two input streams are accumulated per block. The block
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-- . The products of two input streams are accumulated per block. The block
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-- out_val_m strobes that can be used as wr_en to the corresponding statistics
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-- out_val_m strobes that can be used as wr_en to the corresponding statistics
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-- output register in a range of g_nof_mux statistics output registers.
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-- output register in a range of g_nof_mux statistics output registers.
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ENTITY st_calc IS
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ENTITY st_calc IS
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GENERIC (
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GENERIC (
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g_technology : NATURAL := c_tech_select_default;
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g_technology : NATURAL := 0;
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g_nof_mux : NATURAL := 1;
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g_nof_mux : NATURAL := 1;
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g_nof_stat : NATURAL := 512;
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g_nof_stat : NATURAL := 512;
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g_in_dat_w : NATURAL := 18; -- = input data width
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g_in_dat_w : NATURAL := 18; -- = input data width
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g_out_dat_w : NATURAL := 54; -- = accumulator width for the input data products, so >> 2*g_in_dat_w
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g_out_dat_w : NATURAL := 54; -- = accumulator width for the input data products, so >> 2*g_in_dat_w
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g_out_adr_w : NATURAL := 9; -- = ceil_log2(g_nof_stat)
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g_out_adr_w : NATURAL := 9; -- = ceil_log2(g_nof_stat)
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Line 187... |
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out_adr <= out_adr_m(c_adr_w-1 DOWNTO c_mux_w);
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out_adr <= out_adr_m(c_adr_w-1 DOWNTO c_mux_w);
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-- complex multiplier: computes a * conj(b)
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-- complex multiplier: computes a * conj(b)
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--mul: ENTITY common_lib.common_complex_mult(str)
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--mul: ENTITY common_lib.common_complex_mult(str)
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mul: ENTITY common_mult_lib.common_complex_mult
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mul: ENTITY astron_multiplier_lib.common_complex_mult
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GENERIC MAP (
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GENERIC MAP (
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g_technology => g_technology,
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g_technology => g_technology,
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g_variant => "IP",
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g_variant => "IP",
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g_in_a_w => in_ar'LENGTH,
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g_in_a_w => in_ar'LENGTH,
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g_in_b_w => in_br'LENGTH,
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g_in_b_w => in_br'LENGTH,
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in_acc => rd_re,
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in_acc => rd_re,
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out_acc => wr_re
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out_acc => wr_re
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);
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);
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-- accumulator memory for real part
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-- accumulator memory for real part
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ram_re: ENTITY common_ram_lib.common_ram_r_w
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ram_re: ENTITY astron_ram_lib.common_ram_r_w
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GENERIC MAP (
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GENERIC MAP (
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g_technology => g_technology,
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g_technology => g_technology,
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g_ram => c_mem_acc,
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g_ram => c_mem_acc,
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g_init_file => "UNUSED"
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g_init_file => "UNUSED"
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)
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)
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in_acc => rd_im,
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in_acc => rd_im,
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out_acc => wr_im
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out_acc => wr_im
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);
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);
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-- dual port memory
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-- dual port memory
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ram_im: ENTITY common_ram_lib.common_ram_r_w
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ram_im: ENTITY astron_ram_lib.common_ram_r_w
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GENERIC MAP (
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GENERIC MAP (
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g_technology => g_technology,
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g_technology => g_technology,
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g_ram => c_mem_acc,
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g_ram => c_mem_acc,
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g_init_file => "UNUSED"
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g_init_file => "UNUSED"
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)
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)
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