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HilscherAutomation / netPI-netx-programming-examples

Sources of Dockerfile generated Docker image "netX programming"
MIT License
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Missing SPI Device #2

Closed snortman closed 6 years ago

snortman commented 6 years ago

Hi,

Using a NIOT-E-NPI3-51-EN-RE device. Followed instructions from README.md.

Was able to install driver and build the code.

However, when attempting to run the EtherCAT slave example, I received the following error message:

image

lemariva commented 6 years ago

No one is answering, so I try: Did you forget to map the device in the container setup? You need to map the spi interface like:

hilscher

You can type: ls /dev/spi* inside the container and you should get /dev/spidev0.0 as answer. Otherwise, you didn't link the host device with the Docker container.

hilschernetpi commented 6 years ago

The communication between the netPI (Raspberry CPU) and netX chip goes across an SPI interface. On netPI this device is named spidev0.0 and as usual on Linux such devices are located in the /dev/ folder. If a container is now started under Docker, by default no host devices are mapped into a container, so you have to map it yourself. And as @lemariva has already mentioned you have to use the Runtime menu item and +add device option to insert a new line adding the /dev/spidev0.0 -> /dev/spidev0.0 device entry.