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test/spi: port to NAC3

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This commit is contained in:
Sébastien Bourdeauducq 2024-08-19 22:15:17 +08:00
parent 5ffa6e0522
commit 8183ed1eb0
1 changed files with 20 additions and 15 deletions
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35
artiq/test/coredevice/test_spi.py
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@ -3,16 +3,21 @@ from artiq.experiment import *
from artiq.test.hardware_testbench import ExperimentCase
from artiq.language.core import kernel
from artiq.language.units import us
from artiq.coredevice import spi2 as spi
from artiq.coredevice.core import Core
from artiq.coredevice.spi2 import *
_SDCARD_SPI_CONFIG = (0*spi.SPI_OFFLINE | 0*spi.SPI_END |
0*spi.SPI_INPUT | 0*spi.SPI_CS_POLARITY |
0*spi.SPI_CLK_POLARITY | 0*spi.SPI_CLK_PHASE |
0*spi.SPI_LSB_FIRST | 0*spi.SPI_HALF_DUPLEX)
_SDCARD_SPI_CONFIG = (0*SPI_OFFLINE | 0*SPI_END |
0*SPI_INPUT | 0*SPI_CS_POLARITY |
0*SPI_CLK_POLARITY | 0*SPI_CLK_PHASE |
0*SPI_LSB_FIRST | 0*SPI_HALF_DUPLEX)
@nac3
class CardTest(EnvExperiment):
core: KernelInvariant[Core]
spi_mmc: KernelInvariant[SPIMaster]
def build(self):
self.setattr_device("core")
self.setattr_device("spi_mmc")
@ -20,18 +25,18 @@ class CardTest(EnvExperiment):
@kernel
def run(self):
self.core.reset()
delay(1*ms)
self.core.delay(1.*ms)
freq = 1*MHz
freq = 1.*MHz
cs = 1
# run a couple of clock cycles with miso high to wake up the card
self.spi_mmc.set_config(_SDCARD_SPI_CONFIG, 32, freq, 0)
for i in range(10):
self.spi_mmc.write(0xffffffff)
self.spi_mmc.set_config(_SDCARD_SPI_CONFIG | spi.SPI_END, 32, freq, 0)
self.spi_mmc.write(0xffffffff)
delay(200*us)
self.spi_mmc.write(-1)
self.spi_mmc.set_config(_SDCARD_SPI_CONFIG | SPI_END, 32, freq, 0)
self.spi_mmc.write(-1)
self.core.delay(200.*us)
self.spi_mmc.set_config(_SDCARD_SPI_CONFIG, 8, freq, cs)
self.spi_mmc.write(0x40 << 24) # CMD
@ -39,20 +44,20 @@ class CardTest(EnvExperiment):
self.spi_mmc.write(0x00000000) # ARG
self.spi_mmc.set_config(_SDCARD_SPI_CONFIG, 8, freq, cs)
self.spi_mmc.write(0x95 << 24) # CRC
self.spi_mmc.set_config(_SDCARD_SPI_CONFIG | spi.SPI_INPUT, 8, freq, cs)
self.spi_mmc.set_config(_SDCARD_SPI_CONFIG | SPI_INPUT, 8, freq, cs)
idle = False
response = 0
for i in range(8):
self.spi_mmc.write(0xff << 24) # NCR
response = self.spi_mmc.read()
delay(100*us)
self.core.delay(100.*us)
if response == 0x01:
idle = True
break
self.spi_mmc.set_config(_SDCARD_SPI_CONFIG | spi.SPI_END, 8, freq, cs)
self.spi_mmc.set_config(_SDCARD_SPI_CONFIG | SPI_END, 8, freq, cs)
self.spi_mmc.write(0xff << 24)
if not idle:
print(response)
print_rpc(response)
raise ValueError("SD Card did not reply with IDLE")