Echelon ISI - Manual (Page 56)

ISI Programmer’s Guide 54
DeviceState Connection Host Response to Connect Button
isiApprovedHost Yes An approved connection host is
one that has received at least
one connection enrollment
acceptance message (CSME).
Call IsiCreateEnrollment() or
IsiExtendEnrollment() to
implement the connection. Call
IsiCancelEnrollment() to cancel
the enrollment.
isiApproved No An approved connection
member is one that awaits a
connection enrollment
confirmation (CSMC) or
cancellation (CSMX) message
from the host. Call
IsiCancelEnrollment() to cancel
the acceptance (opt out of the
open enrollment).
isiNormal N/A In the normal state, devices can
become hosts
(IsiOpenEnrollment()) or leave
or delete existing connections
through IsiLeaveEnrollment() or
IsiDeleteEnrollment().
In the example code below, the application Connect button when task calls
enrollment functions based on the DeviceState, which was set in the overridden
IsiUpdateUserInterface() function above. The if (longPress) test represents an
action that would happen if the button was being held down for an extended
period of time, with the implementation details not shown here.
when (io_changes(...)) {
switch(deviceState) {
case isiPendingHost:
if (longPress) {
IsiCancelEnrollment();
}
break;
case isiPending:
IsiCreateEnrollment(assembly);
break;
case isiApprovedHost:
if (longPress) {
IsiCancelEnrollment();
} else {
IsiCreateEnrollment(assembly);
}
break;
case isiApproved:
if (longPress) {
IsiCancelEnrollment();
}
break;