25 lines
804 B
Python
25 lines
804 B
Python
from migen.fhdl.std import *
|
|
|
|
from misoclib import gpio, spiflash
|
|
from misoclib.gensoc import GenSoC
|
|
|
|
class SimpleSoC(GenSoC):
|
|
def __init__(self, platform):
|
|
GenSoC.__init__(self, platform,
|
|
clk_freq=32*1000000,
|
|
cpu_reset_address=0x60000)
|
|
|
|
# We can't use reset_less as LM32 does require a reset signal
|
|
self.clock_domains.cd_sys = ClockDomain()
|
|
self.comb += self.cd_sys.clk.eq(platform.request("clk32"))
|
|
self.specials += Instance("FD", p_INIT=1, i_D=0, o_Q=self.cd_sys.rst, i_C=ClockSignal())
|
|
|
|
self.submodules.leds = gpio.GPIOOut(platform.request("user_led"))
|
|
|
|
self.submodules.spiflash = spiflash.SpiFlash(platform.request("spiflash2x"),
|
|
cmd=0xefef, cmd_width=16, addr_width=24, dummy=4)
|
|
self.register_rom(self.spiflash.bus)
|
|
|
|
def get_default_subtarget(platform):
|
|
return SimpleSoC
|