forked from M-Labs/artiq
test_spi: move to new spi2 core
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898bad5abc
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@ -125,7 +125,7 @@ device_db = {
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},
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"spi_mmc": {
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"type": "local",
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"module": "artiq.coredevice.spi",
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"module": "artiq.coredevice.spi2",
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"class": "SPIMaster",
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"arguments": {"channel": 26}
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},
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@ -330,7 +330,7 @@ class NIST_CLOCK(_StandaloneBase):
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rtio_channels.append(rtio.Channel.from_phy(
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phy, ififo_depth=128))
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phy = spi.SPIMaster(platform.request("sdcard_spi_33"))
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phy = spi2.SPIMaster(platform.request("sdcard_spi_33"))
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self.submodules += phy
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rtio_channels.append(rtio.Channel.from_phy(
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phy, ififo_depth=4))
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@ -3,13 +3,15 @@ from artiq.experiment import *
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from artiq.test.hardware_testbench import ExperimentCase
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from artiq.language.core import (kernel, delay_mu, delay)
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from artiq.language.units import us
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from artiq.coredevice import spi
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from artiq.coredevice import spi2 as spi
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_SDCARD_SPI_CONFIG = (0*spi.SPI_OFFLINE | 0*spi.SPI_CS_POLARITY |
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_SDCARD_SPI_CONFIG = (0*spi.SPI_OFFLINE | 0*spi.SPI_END |
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0*spi.SPI_INPUT | 0*spi.SPI_CS_POLARITY |
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0*spi.SPI_CLK_POLARITY | 0*spi.SPI_CLK_PHASE |
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0*spi.SPI_LSB_FIRST | 0*spi.SPI_HALF_DUPLEX)
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class CardTest(EnvExperiment):
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def build(self):
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self.setattr_device("core")
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@ -18,44 +20,41 @@ class CardTest(EnvExperiment):
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@kernel
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def run(self):
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self.core.reset()
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self.core.break_realtime()
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response = 0xff
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self.spi_mmc.set_config(_SDCARD_SPI_CONFIG, 500*kHz, 500*kHz)
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self.spi_mmc.set_xfer(0, 8, 0)
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freq = 1*MHz
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cs = 1
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# run a couple of clock cycles with miso high to wake up the card
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self.spi_mmc.set_config(_SDCARD_SPI_CONFIG, 32, freq, 0)
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for i in range(10):
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self.spi_mmc.write(0xffffffff)
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delay(-5*us)
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delay(100*us)
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self.spi_mmc.set_xfer(1, 8, 0)
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self.spi_mmc.write(0x40000000)
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delay(-5*us)
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self.spi_mmc.write(0x00000000)
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delay(-5*us)
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self.spi_mmc.write(0x00000000)
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delay(-5*us)
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self.spi_mmc.write(0x00000000)
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delay(-5*us)
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self.spi_mmc.write(0x00000000)
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delay(-5*us)
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self.spi_mmc.write(0x95000000)
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delay(-5*us)
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self.spi_mmc.set_xfer(1, 0, 24)
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self.spi_mmc.set_config(_SDCARD_SPI_CONFIG | spi.SPI_END, 32, freq, 0)
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self.spi_mmc.write(0xffffffff)
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response = self.spi_mmc.read_sync()
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delay(200*us)
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sd_response = False
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for i in range(3):
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if ((response >> 8*i) & 0x0000ff) == 0x01:
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sd_response = True
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self.spi_mmc.set_config(_SDCARD_SPI_CONFIG, 8, freq, cs)
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self.spi_mmc.write(0x40 << 24) # CMD
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self.spi_mmc.set_config(_SDCARD_SPI_CONFIG, 32, freq, cs)
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self.spi_mmc.write(0x00000000) # ARG
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self.spi_mmc.set_config(_SDCARD_SPI_CONFIG, 8, freq, cs)
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self.spi_mmc.write(0x95 << 24) # CRC
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self.spi_mmc.set_config(_SDCARD_SPI_CONFIG | spi.SPI_INPUT, 8, freq, cs)
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idle = False
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response = 0
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for i in range(8):
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self.spi_mmc.write(0xff << 24) # NCR
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response = self.spi_mmc.read()
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delay(100*us)
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if response == 0x01:
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idle = True
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break
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self.set_dataset("sd_response", sd_response)
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self.spi_mmc.set_config(_SDCARD_SPI_CONFIG | spi.SPI_END, 8, freq, cs)
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self.spi_mmc.write(0xff << 24)
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if not idle:
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print(response)
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raise ValueError("SD Card did not reply with IDLE")
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class SDTest(ExperimentCase):
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def test(self):
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self.execute(CardTest)
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self.assertTrue(self.dataset_mgr.get("sd_response"))
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