I am trying to figure out when REN is asserted/unasserted. I have a pin of a co processor connected to this line and need to figure out exactly what this line does with each command.
Sometimes the REN line doesn't seem to get asserted when I call ibdev until after I send data with ibwrt but sometimes it is automatically asserted with ibdev. Not sure if it is a brief assertion or if it is continuously asserted (maybe I am missing something) after calling ibdev. Calling ibonl seems to have no affect on the REN line. I tried calling ibconfig(ibcSRE), attempting set the state to 1 as well as zero, received errors both times. How do I properly manage/monitor the REN line?
Basically I want to assert the REN line when a device handle is created with ibdev and unassert REN before closing out any applications.
It seems to be that the NI adapter buffers as much data as possible which is throwing me off.