N_MUX = 1 # number of selection lines for the mux per io
N_IO = 0
N_MUX_IO = 0
- Addressing = 'WORD'
- ADDR_WIDTH = 32 # TODO parameterise
+ ADDR_WIDTH = 64 # TODO parameterise
PADDR_WIDTH = 32 # TODO parameterise
DATA_WIDTH = 64 # TODO parameterise
# ================ #
- # Generating the number of bits for memory map #
- lower_offset = 0
- if Addressing == 'BYTE':
- lower_offset = 0
- elif Addressing == 'HWORD':
- lower_offset = 1
- elif Addressing == 'WORD':
- lower_offset = 2
- elif Addressing == 'DWORD':
- lower_offset = 3
- else:
- print('ERROR: Addressing should be one of: BYTE, HWORD, WORD, DWORD')
- exit(1)
-
def __init__(self, pth=None, verify=True):
max_io = 0
self.muxed_cells = []
+ self.muxed_cells_width = []
+ self.muxed_cells_bank = []
self.dedicated_cells = []
self.pinnumbers = []
+ self.bankwidths = {}
+ self.banksize = {}
+ self.bankstart = {}
+
+ fname = 'pinspec.txt'
+ if pth:
+ fname = os.path.join(pth, fname)
+ with open(fname) as bankwidths:
+ for lineno, line in enumerate(bankwidths):
+ line1 = line[:-1].split('\t')
+ self.bankwidths[line1[0]] = int(line1[3])
+ self.banksize[line1[0]] = int(line1[2])
+ self.bankstart[line1[0]] = int(line1[1])
# == capture the number of IO cells required == #
fname = 'pinmap.txt'
with open(fname) as pinmapfile:
for lineno, line in enumerate(pinmapfile):
line1 = line[:-1].split('\t')
- if len(line1) <= 1:
+ if len(line1) <= 3:
continue
self.pinnumbers.append(int(line1[0]))
- if len(line1) == 2: # dedicated
- self.dedicated_cells.append(line1)
- else:
- for i in range(1, len(line1)):
- # XXX HORRIBLE HACK!!
- if line1[i].startswith('pwm'):
- line1[i] = 'pwm%s_out' % line1[i][4:]
- self.muxed_cells.append(line1)
+ self.muxed_cells_bank.append(line1[1])
+ self.muxed_cells_width.append(int(line1[2]))
+ # XXX TODO: dedicated pins in separate file
+ # if len(line1) == 2: # dedicated
+ # self.dedicated_cells.append(line1)
+ # else:
+ for i in range(3, len(line1)):
+ # XXX HORRIBLE HACK!!
+ if line1[i].startswith('pwm'):
+ line1[i] = 'pwm%s_out' % line1[i][4:]
+ line1 = [line1[0]] + line1[3:]
+ print "line", line1
+ self.muxed_cells.append(line1)
self.pinnumbers = sorted(self.pinnumbers)
- self.upper_offset = self.lower_offset + \
- int(math.log(len(self.muxed_cells), 2))
if verify:
self.do_checks()
- self.cell_bitwidth = self.get_cell_bit_width()
+ #self.cell_bitwidth = self.get_cell_bit_widths()
# == user info after parsing ================= #
self.N_IO = len(self.dedicated_cells) + len(self.muxed_cells)
print("Max number of IO: " + str(self.N_IO))
- print("Muxer bit width: " + str(self.cell_bitwidth))
+ #print("Muxer bit width: " + str(self.cell_bitwidth))
print("Muxed IOs: " + str(len(self.muxed_cells)))
print("Dedicated IOs: " + str(len(self.dedicated_cells)))
+ # sys.exit(0)
def do_checks(self):
""" Multiple checks to see if the user has not screwed up
# TODO
- def get_cell_bit_width(self):
+ def get_max_cell_bitwidth(self):
max_num_cells = 0
for cell in self.muxed_cells:
+ print cell
max_num_cells = max(len(cell) - 1, max_num_cells)
return int(math.log(max_num_cells + 1, 2))
+ def get_muxwidth(self, cellnum):
+ return self.muxed_cells_width[int(cellnum)]
+
+ def get_muxbitwidth(self, cellnum):
+ wid = self.get_muxwidth(cellnum)
+ if wid == 1:
+ return 0
+ return int(math.log(wid + 1, 2))
+
if __name__ == '__main__':
p = Parse()