techlibs/ecp5/brams_connect.py

   1 #!/usr/bin/env python3
   2
   3 def write_bus_ports(f, ada_bits, adb_bits, dia_bits, dob_bits):
   4     ada_conn = [".ADA%d(%s)" % (i, ada_bits[i]) for i in range(len(ada_bits))]
   5     adb_conn = [".ADB%d(%s)" % (i, adb_bits[i]) for i in range(len(adb_bits))]
   6     dia_conn = [".DIA%d(%s)" % (i, dia_bits[i]) for i in range(len(dia_bits))]
   7     dob_conn = [".DOB%d(%s)" % (i, dob_bits[i]) for i in range(len(dob_bits))]
   8     print("    %s," % ", ".join(ada_conn), file=f)
   9     print("    %s," % ", ".join(adb_conn), file=f)
  10     print("    %s," % ", ".join(dia_conn), file=f)
  11     print("    %s," % ", ".join(dob_conn), file=f)
  12
  13 with open("techlibs/ecp5/bram_conn_1.vh", "w") as f:
  14     ada_bits = ["A1ADDR[%d]" % i for i in range(14)]
  15     adb_bits = ["B1ADDR[%d]" % i for i in range(14)]
  16     dia_bits = ["A1DATA[0]"] + ["1'b0" for i in range(17)]
  17     dob_bits = ["B1DATA[0]"]
  18     write_bus_ports(f, ada_bits, adb_bits, dia_bits, dob_bits)
  19
  20 with open("techlibs/ecp5/bram_conn_2.vh", "w") as f:
  21     ada_bits = ["1'b0"] + ["A1ADDR[%d]" % i for i in range(13)]
  22     adb_bits = ["1'b0"] + ["B1ADDR[%d]" % i for i in range(13)]
  23     dia_bits = ["A1DATA[%d]" % i for i in range(2)] + ["1'b0" for i in range(16)]
  24     dob_bits = ["B1DATA[%d]" % i for i in range(2)]
  25     write_bus_ports(f, ada_bits, adb_bits, dia_bits, dob_bits)
  26
  27 with open("techlibs/ecp5/bram_conn_4.vh", "w") as f:
  28     ada_bits = ["1'b0", "1'b0"] + ["A1ADDR[%d]" % i for i in range(12)]
  29     adb_bits = ["1'b0", "1'b0"] + ["B1ADDR[%d]" % i for i in range(12)]
  30     dia_bits = ["A1DATA[%d]" % i for i in range(4)] + ["1'b0" for i in range(14)]
  31     dob_bits = ["B1DATA[%d]" % i for i in range(4)]
  32     write_bus_ports(f, ada_bits, adb_bits, dia_bits, dob_bits)
  33
  34 with open("techlibs/ecp5/bram_conn_9.vh", "w") as f:
  35     ada_bits = ["1'b0", "1'b0", "1'b0"] + ["A1ADDR[%d]" % i for i in range(11)]
  36     adb_bits = ["1'b0", "1'b0", "1'b0"] + ["B1ADDR[%d]" % i for i in range(11)]
  37     dia_bits = ["A1DATA[%d]" % i for i in range(9)] + ["1'b0" for i in range(9)]
  38     dob_bits = ["B1DATA[%d]" % i for i in range(9)]
  39     write_bus_ports(f, ada_bits, adb_bits, dia_bits, dob_bits)
  40
  41 with open("techlibs/ecp5/bram_conn_18.vh", "w") as f:
  42     ada_bits = ["A1EN[0]", "A1EN[1]", "1'b0", "1'b0"] + ["A1ADDR[%d]" % i for i in range(10)]
  43     adb_bits = ["1'b0", "1'b0", "1'b0", "1'b0"] + ["B1ADDR[%d]" % i for i in range(10)]
  44     dia_bits = ["A1DATA[%d]" % i for i in range(18)]
  45     dob_bits = ["B1DATA[%d]" % i for i in range(18)]
  46     write_bus_ports(f, ada_bits, adb_bits, dia_bits, dob_bits)