测试失败 - Githubissues

blimjoe commented 3 years ago

已经改了config文件，安装了库。测试example时出现了问题。 /dev/下的ttySC0和ttySC1两个设备在没有插上HAT时也是有的，是insmod了某个module就会出现吗？怎么查看这两个设备在工作呢？

pi@raspberrypi:~/testcode/2-CH-RS485-HAT/RaspberryPi/user_dev/python/examples $ sudo python main.py
Traceback (most recent call last):
  File "main.py", line 3, in <module>
    import serial
  File "/usr/local/lib/python2.7/dist-packages/serial/__init__.py", line 10, in <module>
    from . import utilities, abc, model, marshal, errors, properties, meta, hooks, test, request
  File "/usr/local/lib/python2.7/dist-packages/serial/utilities/__init__.py", line 5, in <module>
    compatibility.backport()  # noqa
  File "/usr/local/lib/python2.7/dist-packages/serial/utilities/compatibility.py", line 28, in backport
    exec(BACKWARDS_COMPATIBILITY_IMPORTS, frame.f_globals, frame.f_locals)
  File "<string>", line 5, in <module>
  File "/usr/local/lib/python2.7/dist-packages/future/standard_library/__init__.py", line 485, in install_aliases
    import test
  File "/home/pi/testcode/2-CH-RS485-HAT/RaspberryPi/user_dev/python/examples/test.py", line 16, in <module>
    from waveshare_2_CH_RS485_HAT import RS485
  File "/home/pi/testcode/2-CH-RS485-HAT/RaspberryPi/user_dev/python/lib/waveshare_2_CH_RS485_HAT/RS485.py", line 10, in <module>
    import SC16IS752
  File "/home/pi/testcode/2-CH-RS485-HAT/RaspberryPi/user_dev/python/lib/waveshare_2_CH_RS485_HAT/SC16IS752.py", line 79, in <module>
    com = config.config()
  File "/home/pi/testcode/2-CH-RS485-HAT/RaspberryPi/user_dev/python/lib/waveshare_2_CH_RS485_HAT/config.py", line 24, in __init__
    self._spi = SPI.SpiDev(0, 0)
IOError: [Errno 2] No such file or directory

waveshare commented 3 years ago

这个只要是加入语句就会生成设备

------------------ 原始邮件 ------------------ 发件人: "waveshare/2-CH-RS485-HAT" <notifications@github.com>; 发送时间: 2020年9月29日(星期二) 下午2:05 收件人: "waveshare/2-CH-RS485-HAT"<2-CH-RS485-HAT@noreply.github.com>; 抄送: "Subscribed"<subscribed@noreply.github.com>; 主题: [waveshare/2-CH-RS485-HAT] 测试失败 (#1)

已经改了config文件，安装了库。测试example时出现了问题。 /dev/下的ttySC0和ttySC1两个设备在没有插上HAT时也是有的，是insmod了某个module就会出现吗？怎么查看这两个设备在工作呢？ pi@raspberrypi:~/testcode/2-CH-RS485-HAT/RaspberryPi/user_dev/python/examples $ sudo python main.py Traceback (most recent call last): File "main.py", line 3, in <module> import serial File "/usr/local/lib/python2.7/dist-packages/serial/init.py", line 10, in <module> from . import utilities, abc, model, marshal, errors, properties, meta, hooks, test, request File "/usr/local/lib/python2.7/dist-packages/serial/utilities/init.py", line 5, in <module> compatibility.backport() # noqa File "/usr/local/lib/python2.7/dist-packages/serial/utilities/compatibility.py", line 28, in backport exec(BACKWARDS_COMPATIBILITY_IMPORTS, frame.f_globals, frame.f_locals) File "<string>", line 5, in <module> File "/usr/local/lib/python2.7/dist-packages/future/standard_library/init.py", line 485, in install_aliases import test File "/home/pi/testcode/2-CH-RS485-HAT/RaspberryPi/user_dev/python/examples/test.py", line 16, in <module> from waveshare_2_CH_RS485_HAT import RS485 File "/home/pi/testcode/2-CH-RS485-HAT/RaspberryPi/user_dev/python/lib/waveshare_2_CH_RS485_HAT/RS485.py", line 10, in <module> import SC16IS752 File "/home/pi/testcode/2-CH-RS485-HAT/RaspberryPi/user_dev/python/lib/waveshare_2_CH_RS485_HAT/SC16IS752.py", line 79, in <module> com = config.config() File "/home/pi/testcode/2-CH-RS485-HAT/RaspberryPi/user_dev/python/lib/waveshare_2_CH_RS485_HAT/config.py", line 24, in init self._spi = SPI.SpiDev(0, 0) IOError: [Errno 2] No such file or directory
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blimjoe commented 3 years ago

请问这个问题该如何排查呢？

waveshare / 2-CH-RS485-HAT

测试失败 #1