Echelon ISI - Manual (Page 147)

145 ISI Programmer’s Guide
You must override the IsiSetConnection() and IsiGetConnection() functions if you
override the IsiGetConnectionTableSize() function.
E XAMPLE
The following example creates a connection table with 16 entries stored in on-
chip EEPROM:
#define CTABSIZE 16u
static eeprom fastaccess IsiConnection
MyConnectionTable[CTABSIZE];
unsigned IsiGetConnectionTableSize(void) {
return CTABSIZE;
}
const IsiConnection* IsiGetConnection(unsigned Index) {
return MyConnectionTable + Index;
}
void IsiSetConnection(IsiConnection* pConnection, unsigned Index){
MyConnectionTable[Index] = *pConnection;
}
IsiGetNextAssembly()
unsigned IsiGetNextAssembly(const IsiCsmoData* pCsmoData ,
boolean Auto , unsigned Assembly );
Returns the next applicable assembly following the one indicated with the
Assembly argument for an incoming CSMO following the specified assembly.
The function returns ISI_NO_ASSEMBLY (0xFF) if there are no such
assemblies, or an application-specific assembly number 1 – 254. This function is
called after calling the IsiGetAssembly() function, unless IsiGetAssembly()
returned ISI_NO_ASSEMBLY. The Auto parameter specifies a manually
initiated enrollment ( Auto = FALSE) or an automatically initiated enrollment
( Auto = TRUE). The Auto flag is true both for initial automatic enrollment
messages (CSMA) or reminders that relate to a possibly new connection (CSMR).
Automatic enrollment reminder messages that relate to existing connections on
the local device are not passed to the application. The pointer provided with the
pCsmoData parameter is only valid for the duration of this function call.
IsiGetNextAssembly() is a forwarder to isiGetNextAssembly().
The isiGetNextAssembly() forwardee returns the next assembly number if a
complementary network variable exists for a simple connection, using standard
network variable types. The isiGetNextAssembly() forwardee always refuses
automatic enrollment. The default implementation is compatible with the
default implementation of IsiCreateCsmo(), and is sufficient for simple devices.
The isiGetNextAssembly() forwardee assumes the default assembly numbering
scheme that is described in
Assembly Number Allocation earlier.
Applications overriding IsiGetNextAssembly() should also override
IsiGetAssembly().
The function operates whether the ISI engine is running or not.