src/bsv/peripheral_gen/jtag.py

   1 from bsv.peripheral_gen.base import PBase
   2
   3
   4 class jtag(PBase):
   5
   6     def slowimport(self):
   7         return "    import jtagtdm::*;\n"
   8
   9     def fastifdecl(self, name, count):
  10         # YUK!
  11         template = """ \
  12          (*always_ready,always_enabled*) method Action tms_i(Bit#(1) tms);
  13          (*always_ready,always_enabled*) method Action tdi_i(Bit#(1) tdi);
  14          (*always_ready,always_enabled*)
  15                                  method Action bs_chain_i(Bit#(1) bs_chain);
  16          (*always_ready,always_enabled*) method Bit#(1) shiftBscan2Edge;
  17          (*always_ready,always_enabled*) method Bit#(1) selectJtagInput;
  18          (*always_ready,always_enabled*) method Bit#(1) selectJtagOutput;
  19          (*always_ready,always_enabled*) method Bit#(1) updateBscan;
  20          (*always_ready,always_enabled*) method Bit#(1) bscan_in;
  21          (*always_ready,always_enabled*) method Bit#(1) scan_shift_en;
  22          (*always_ready,always_enabled*) method Bit#(1) tdo;
  23          (*always_ready,always_enabled*) method Bit#(1) tdo_oe;
  24 """
  25         return template
  26
  27     def mkfast_peripheral(self):
  28         return """\
  29         Ifc_jtagdtm jtag{0} <-mkjtagdtm(clocked_by tck, reset_by trst);
  30         rule drive_tmp_scan_outs;
  31             jtag{0}.scan_out_1_i(1'b0);
  32             jtag{0}.scan_out_2_i(1'b0);
  33             jtag{0}.scan_out_3_i(1'b0);
  34             jtag{0}.scan_out_4_i(1'b0);
  35             jtag{0}.scan_out_5_i(1'b0);
  36         endrule
  37 """
  38     def axi_slave_name(self, name, ifacenum, typ=''):
  39         return ''
  40
  41     def axi_slave_idx(self, idx, name, ifacenum, typ):
  42         return ('', 0)
  43
  44     def axi_addr_map(self, name, ifacenum):
  45         return ''