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Allow access to secondary sd card via hardware spi bitbanging

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rob-ng15 2020-03-18 12:13:37 +00:00 committed by GitHub
parent a6f80694cb
commit bc6ef0bc48
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1 changed files with 9 additions and 0 deletions
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litex_boards/targets/de10nano.py
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@ -17,6 +17,9 @@ from litex.soc.integration.builder import *
from litedram.modules import AS4C16M16 from litedram.modules import AS4C16M16
from litedram.phy import GENSDRPHY from litedram.phy import GENSDRPHY
#SPI SD CARD HARDWARE BITBANGING
from litex.soc.cores.spi import SPIMaster
# CRG ---------------------------------------------------------------------------------------------- # CRG ----------------------------------------------------------------------------------------------
class _CRG(Module): class _CRG(Module):
@ -103,6 +106,12 @@ class MiSTerSDRAMSoC(SoCSDRAM):
geom_settings = sdram_module.geom_settings, geom_settings = sdram_module.geom_settings,
timing_settings = sdram_module.timing_settings) timing_settings = sdram_module.timing_settings)
# SPI SDCARD HARDWARE BITBANGING
spi_pads = self.platform.request("spi")
self.add_csr("spi")
spi_clk_freq = 400e3
self.submodules.spi = SPIMaster(spi_pads, 8, sys_clk_freq, spi_clk_freq)
# Build -------------------------------------------------------------------------------------------- # Build --------------------------------------------------------------------------------------------
def main(): def main():