tb/lasmicon: add DF test

This commit is contained in:
Sebastien Bourdeauducq 2013-07-15 21:34:53 +02:00
parent 90fecb920c
commit 8c44c72499
1 changed files with 43 additions and 0 deletions

View File

@ -0,0 +1,43 @@
from migen.fhdl.std import *
from migen.bus import lasmibus
from migen.actorlib import dma_lasmi
from migen.sim.generic import Simulator, TopLevel, Proxy
from milkymist.lasmicon import *
from common import sdram_phy, sdram_geom, sdram_timing, DFILogger
class TB(Module):
def __init__(self):
self.submodules.ctler = LASMIcon(sdram_phy, sdram_geom, sdram_timing)
# FIXME: remove dummy master
self.submodules.xbar = lasmibus.Crossbar([self.ctler.lasmic], 2, self.ctler.nrowbits)
self.submodules.logger = DFILogger(self.ctler.dfi)
self.submodules.writer = dma_lasmi.Writer(self.xbar.masters[0])
self.comb += self.writer.address_data.stb.eq(1)
pl = self.writer.address_data.payload
pl.a.reset = 255
pl.d.reset = pl.a.reset*2
self.sync += If(self.writer.address_data.ack,
pl.a.eq(pl.a + 1),
pl.d.eq(pl.d + 2)
)
self.open_row = None
def do_simulation(self, s):
dfip = Proxy(s, self.ctler.dfi)
for p in dfip.phases:
if p.ras_n and not p.cas_n and not p.we_n: # write
d = dfip.phases[0].wrdata | (dfip.phases[1].wrdata << 64)
print(d)
if d != p.address//2 + p.bank*512 + self.open_row*2048:
print("**** ERROR ****")
elif not p.ras_n and p.cas_n and p.we_n: # activate
self.open_row = p.address
def main():
sim = Simulator(TB(), TopLevel("my.vcd"))
sim.run(3500)
main()