2012-09-12 11:56:36 -04:00
|
|
|
class Constraints:
|
2012-09-12 16:20:07 -04:00
|
|
|
def __init__(self, in_clk, in_rst_n, spi2csr0, led0, sw0):
|
2012-09-12 11:56:36 -04:00
|
|
|
self.constraints = []
|
|
|
|
|
def add(signal, pin, vec=-1, iostandard="3.3-V LVTTL", extra="", sch=""):
|
|
|
|
|
self.constraints.append((signal, vec, pin, iostandard, extra,sch))
|
|
|
|
|
def add_vec(signal, pins, iostandard="3.3-V LVTTL", extra="", sch=""):
|
|
|
|
|
assert(signal.bv.width == len(pins)), "%s size : %d / qsf size : %d" %(signal,signal.bv.width,len(pins))
|
|
|
|
|
i = 0
|
|
|
|
|
for p in pins:
|
|
|
|
|
add(signal, p, i, iostandard, extra)
|
|
|
|
|
i += 1
|
|
|
|
|
# sys_clk
|
|
|
|
|
add(in_clk, "L1") # CLOCK_50
|
|
|
|
|
|
|
|
|
|
# sys_rst
|
|
|
|
|
add(in_rst_n, "R22") # KEY[0]
|
|
|
|
|
|
|
|
|
|
# spi2csr0
|
|
|
|
|
add(spi2csr0.spi_clk, "F13") #GPIO_1[9]
|
|
|
|
|
add(spi2csr0.spi_cs_n, "G15") #GPIO_1[3]
|
|
|
|
|
add(spi2csr0.spi_mosi, "E15") #GPIO_1[5]
|
|
|
|
|
add(spi2csr0.spi_miso, "G16") #GPIO_1[7]
|
|
|
|
|
|
|
|
|
|
# led0
|
|
|
|
|
add_vec(led0, ["U22", "U21", "V22", "V21",
|
|
|
|
|
"W22" , "W21" , "Y22" , "Y21"])
|
2012-09-12 16:20:07 -04:00
|
|
|
# sw0
|
|
|
|
|
add_vec(sw0, ["L22", "L21", "M22", "V12",
|
|
|
|
|
"W12" , "U12" , "U11" , "M2"])
|
2012-09-12 11:56:36 -04:00
|
|
|
|
|
|
|
|
def get_ios(self):
|
|
|
|
|
return set([c[0] for c in self.constraints])
|
|
|
|
|
|
|
|
|
|
def get_qsf(self, ns):
|
|
|
|
|
r = ""
|
|
|
|
|
for c in self.constraints:
|
|
|
|
|
r += "set_location_assignment PIN_"+str(c[2])
|
|
|
|
|
r += " -to " + ns.get_name(c[0])
|
|
|
|
|
if c[1] >= 0:
|
|
|
|
|
r += "[" + str(c[1]) + "]"
|
|
|
|
|
r += "\n"
|
|
|
|
|
|
|
|
|
|
r += "set_instance_assignment -name IO_STANDARD "
|
|
|
|
|
r += "\"" + c[3] + "\""
|
|
|
|
|
r += " -to " + ns.get_name(c[0])
|
|
|
|
|
if c[1] >= 0:
|
|
|
|
|
r += "[" + str(c[1]) + "]"
|
|
|
|
|
r += "\n"
|
|
|
|
|
|
|
|
|
|
r += """
|
|
|
|
|
set_global_assignment -name FAMILY "Cyclone II"
|
|
|
|
|
set_global_assignment -name DEVICE EP2C20F484C7
|
|
|
|
|
set_global_assignment -name TOP_LEVEL_ENTITY "de1"
|
|
|
|
|
set_global_assignment -name CYCLONEII_RESERVE_NCEO_AFTER_CONFIGURATION "USE AS REGULAR IO"
|
|
|
|
|
set_global_assignment -name RESERVE_FLASH_NCE_AFTER_CONFIGURATION "USE AS REGULAR IO"
|
|
|
|
|
set_global_assignment -name RESERVE_DATA0_AFTER_CONFIGURATION "USE AS REGULAR IO"
|
|
|
|
|
set_global_assignment -name RESERVE_DATA1_AFTER_CONFIGURATION "USE AS REGULAR IO"
|
|
|
|
|
set_global_assignment -name RESERVE_DCLK_AFTER_CONFIGURATION "USE AS REGULAR IO"
|
|
|
|
|
set_global_assignment -name DUTY_CYCLE 50 -section_id in_clk
|
|
|
|
|
set_global_assignment -name FMAX_REQUIREMENT "50.0 MHz" -section_id in_clk
|
|
|
|
|
"""
|
|
|
|
|
return r
|
