Piface2 board not detected (Rpi3 B) about pifacecommon HOT 8 CLOSED

For me the hint from joppep at https://www.raspberrypi.org/forums/viewtopic.php?t=170606 solved the issue, copying here for reference:

Within spi.py (at my system it was at /usr/local/lib/python3.5/dist-packages/pifacecommon/spi.py) add a line speed_hz=ctypes.c_uint32(100000) to the transfer struct so that it looks as following

 # create the spi transfer struct
        transfer = spi_ioc_transfer(
            tx_buf=ctypes.addressof(wbuffer),
            rx_buf=ctypes.addressof(rbuffer),
            len=ctypes.sizeof(wbuffer),
            speed_hz=ctypes.c_uint32(100000) 
        )

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Incidentally, this: https://github.com/bulletmark/pifaceio does work- I can perform a 'write' and hear the relay click and an LED illuminates, so I guess the board is physically okay.

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@matthub Thanks! I'm using the pifacerelayplus board and it wasn't being detected. Using your fix it works!

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Is this fixed?

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Board appears working now, so yep, happy to close this.

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I got the same issue on a Pi 1 model B+, and the suggested fix does not work.

I guess it probably has a different max speed?
I tried (pure guess) already the following values, without success: 100000, 1000000, 150000, 15000
How do I know the actual value to use?

Thanks

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I got a LED blinking on a Pi1 B using next commands:
git clone [email protected]:piface/pifacedigitalio.git
git clone https://github.com/piface/pifacecommon.git
cd pifacecommon/
sudo python setup.py install
cd ../pifacedigitalio/examples/
sudo python blink.py

I hope this helps

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Any chance this issue is fixed thanks to #23 ?

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