xfer2 Problem seit update - Raspberry Pi Forums

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hallo,

ich bekomme seit einem update, upgrade heute morgen folgende fehlermeldung beim ausführen eines programms zum auslesen eines mcp3008 (das programm hat bis jetzt immer funktioniert):

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temp : 226 (729.03 mv) 22.903 deg c
22.02.2015 16:38:40
traceback (most recent call last):
file "mcp3008.py", line 24, in <module>
temp_value = analog_read(tmp36_channel)
file "mcp3008.py", line 14, in analog_read
result = spi.xfer2([1,(8+channel)<<4,0])
ioerror: [errno 22] invalid argument

komisch ist nur, dass er einmal richtig ausliest und dann erst einen fehler feststellt....

benutzt du ne pi 2?
wenn nicht, hast du dann den devicetree in der config.txt festgelegt?

http://www.raspberrypi.org/forums/viewt ... 28&t=97314


raspberrypi



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