Defining Functions › User Functions › Defining User-Coded Functions

Defining User-Coded Functions

User coded functions are functions that are user-written in a HLL. They can be called from another function or embedded within a function.

The user-written coded functions are:

• Execute User Program (EXCUSRPGM)—This function allows you to describe the interface to a user written HLL program so that it can be referenced by functions. Parameters can be specified on the call.
• Execute User Source (EXCUSRSRC)—This function specifies either:
  • User-written HLL code to perform an arbitrary function that is to be included within the source generated by CA 2E for an HLL program.
  • Device language statements, for example, DDS that can be applied to a device function to customize the associated device design.

You define these function types at the Edit Functions panel. The user-coded functions are called or referenced by any function. However, they do not have an associated action diagram. You can edit the source directly from within CA 2E.

An EXCUSRPGM function generally is an existing program that you integrate into your application. This process typically requires you to rename the default name for the function to the name of the existing user program. DDS names must match for EXCUSRPGM or source copied into functions.

EXCUSRSRC function types must be of the same HLL source type as that of any functions that call them.