1 from string
import digits
3 from string
import maketrans
5 maketrans
= str.maketrans
8 # ============== common bsv templates ============ #
9 # first argument is the io-cell number being assigned.
10 # second argument is the mux value.
11 # Third argument is the signal from the pinmap file
13 if(wrcell{0}_mux=={1})
14 {2}<=cell{0}_mux_in;'''
16 rule assign_{1}_on_cell{0};
20 # ============================================================
21 digits
= maketrans('0123456789', ' ' * 10) # delete space later
25 return "cell%s_mux" % str(idx
)
29 temp
= temp
.split('_')
31 temp
[0] = temp
[0].translate(digits
)
32 temp
[0] = temp
[0] .replace(' ', '')
39 for cell
in p
.muxed_cells
:
40 p
.pinmux
+= " %s_out=" % cn(cell
[0])
41 for i
in range(0, len(cell
) - 2):
42 p
.pinmux
+= "wr%s" % cn(cell
[0]) + \
43 "==" + str(i
) + "?" + cell
[i
+ 1] + "_io:\n\t\t\t"
44 p
.pinmux
+= cell
[i
+ 2] + "_io"
46 # ======================================================== #
48 # check each cell if "peripheral input/inout" then assign its wire
49 # Here we check the direction of each signal in the dictionary.
50 # We choose to keep the dictionary within the code and not user-input
51 # since the interfaces are always standard and cannot change from
52 # user-to-user. Plus this also reduces human-error as well :)
53 p
.pinmux
+= " rule assign_inputs_from_io_to_wires;"
54 for cell
in p
.muxed_cells
:
55 for i
in range(0, len(cell
) - 1):
58 x
= ifaces
.getifacetype(temp
)
60 assert x
is not None, "ERROR: The signal : " + \
62 " of pinmap.txt isn't present \nin the current" + \
63 " dictionary. Update dictionary or fix-typo."
66 mux_wire
.format(cell
[0], i
, "wr" + cname
) + "\n"
69 mux_wire
.format(cell
[0], i
, "wr" + cname
+
71 p
.pinmux
+= " endrule\n"
72 # ============================================================ #
74 # ================== Logic for dedicated pins ========= #
75 for cell
in p
.dedicated_cells
:
76 p
.pinmux
+= " %s_out=%s_io;\n" % (cn(cell
[0]), cell
[1])
77 temp
= cell
[1].translate(digits
)
78 x
= ifaces
.getifacetype(temp
)
81 dedicated_wire
.format(cell
[0], "wr" + cell
[1]) + "\n"
84 dedicated_wire
.format(cell
[0], "wr" + cell
[1] + "_in") + "\n"
85 # =======================================================#