We are integrating a device using a RS-485 connection, and we have installed a GRV-CSERI to do this.
I have some questions:
There are some operations that we want to perform on this device when the strategy is not running.
From the shell account, I can see the that devices /dev/ttySerMod0.0 – /dev/ttySerMod0.3 have been defined.
Can I write a linux program to directly write to these devices?
If a strategy has been loaded, are that strategy’s I/O settings used to specify the # wires, termination, and bias settings for the device. If not, how can this be done? (I have looked at this forum post: Configure Epic Serial Module GRV-CSERI-4 but I do not see this question addressed in that post).
Also, the GRV-CSERI requires that a termination mode and a bias setting by specified as part of the configuration. I have read this blog post:
that describe what termination and bias are. It is somewhat helpful. If we selected the “Termination” option, is this the equivalent of adding a 120 ohm resistor to the communication lines?