from migen import * from migen.sim.generic import run_simulation from misoc.mem.sdram.core import lasmibus from misoc.mem.sdram.core.lasmicon import * from misoc.mem.sdram.frontend import dma_lasmi from test_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) self.submodules.xbar = lasmibus.Crossbar([self.ctler.lasmic], self.ctler.nrowbits) self.submodules.logger = DFILogger(self.ctler.dfi) self.submodules.writer = dma_lasmi.Writer(self.xbar.get_master()) 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, selfp): dfip = selfp.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 if __name__ == "__main__": run_simulation(TB(), ncycles=3500, vcd_name="my.vcd")