coredevice: define ValueError locally

work around M-Labs/nac3#189

artiq/coredevice/ad53xx.py

@@ -17,6 +17,12 @@ from artiq.coredevice.ttl import TTLOut
 from artiq.coredevice.spi2 import *
 
 
+# NAC3TODO work around https://git.m-labs.hk/M-Labs/nac3/issues/189
+@nac3
+class ValueError(Exception):
+    pass
+
+
 SPI_AD53XX_CONFIG = (0*SPI_OFFLINE | 1*SPI_END |
                      0*SPI_INPUT | 0*SPI_CS_POLARITY |
                      0*SPI_CLK_POLARITY | 1*SPI_CLK_PHASE |

artiq/coredevice/ad9912.py

@@ -10,6 +10,12 @@ from artiq.coredevice.urukul import *
 from artiq.coredevice.ttl import TTLOut
 
 
+# NAC3TODO work around https://git.m-labs.hk/M-Labs/nac3/issues/189
+@nac3
+class ValueError(Exception):
+    pass
+
+
 @nac3
 class AD9912:
     """

artiq/coredevice/adf5356.py

@@ -20,6 +20,12 @@ from artiq.coredevice.spi2 import *
 from artiq.coredevice.adf5356_reg import *
 
 
+# NAC3TODO work around https://git.m-labs.hk/M-Labs/nac3/issues/189
+@nac3
+class ValueError(Exception):
+    pass
+
+
 
 SPI_CONFIG = (
     0 * SPI_OFFLINE

artiq/coredevice/mirny.py

@@ -10,6 +10,12 @@ from artiq.coredevice.core import Core
 from artiq.coredevice.spi2 import *
 
 
+# NAC3TODO work around https://git.m-labs.hk/M-Labs/nac3/issues/189
+@nac3
+class ValueError(Exception):
+    pass
+
+
 SPI_CONFIG = (
     0 * SPI_OFFLINE
     | 0 * SPI_END

artiq/coredevice/spi2.py

@@ -14,6 +14,13 @@ from artiq.coredevice.core import Core
 from artiq.coredevice.rtio import rtio_output, rtio_input_data
 
 
+# NAC3TODO work around https://git.m-labs.hk/M-Labs/nac3/issues/189
+@nac3
+class ValueError(Exception):
+    pass
+
+
+
 __all__ = [
     "SPI_DATA_ADDR", "SPI_CONFIG_ADDR",
     "SPI_OFFLINE", "SPI_END", "SPI_INPUT",

artiq/coredevice/urukul.py

@@ -8,6 +8,13 @@ from artiq.coredevice.spi2 import *
 from artiq.coredevice.ttl import TTLOut
 
 
+# NAC3TODO work around https://git.m-labs.hk/M-Labs/nac3/issues/189
+@nac3
+class ValueError(Exception):
+    pass
+
+
+
 SPI_CONFIG = (0 * SPI_OFFLINE | 0 * SPI_END |
               0 * SPI_INPUT | 1 * SPI_CS_POLARITY |
               0 * SPI_CLK_POLARITY | 0 * SPI_CLK_PHASE |