Open port RS485

tomas254

Hello,
could you please advise me how to open port RS485 (which device)?
I'm running Raspbian with evok installed on it.
While I was running original Mervis image the device was /dev/extcomm/0/0 and there isn't such device.

Thank you
Tomas

tomas_hora

Hello @tomas254,

did you install the latest development version of evok as written in the readme? https://github.com/UniPiTechnology/evok#testing-latest-git-versions

Only that version currently support Neurons.

Br,
Tomas

tomas254

Yes i did

tomas_hora

@tomas254

@tomas254 Can you try running the neuron tcp server manually?

fisrt stop the service by:

systemctl stop neurontcp

and then run it by hand by

/opt/neurontcp/neuron_tcp_server -p 502

and paste the output here.

tomas254

@tomas_hora said in Open port RS485:

/opt/neurontcp/neuron_tcp_server -p 502

alt text

tomas_hora

@tomas254 And what SPI devices do you see in /dev/spi*?

ls -l /dev/spi*

tomas254

@tomas_hora

crw-rw---- 1 root spi 153, 2 Feb  8 15:17 /dev/spidev0.0
crw-rw---- 1 root spi 153, 3 Feb  8 15:17 /dev/spidev0.1
crw-rw---- 1 root spi 153, 1 Feb  8 15:17 /dev/spidev0.2
crw-rw---- 1 root spi 153, 0 Feb  8 15:17 /dev/spidev0.3

tomas_hora

Try reinstalling the Modbus server as described here: https://github.com/UniPiTechnology/neuron_tcp_modbus_overlay