Sending to a Port – ESDL

If your software component uses a SenderReceiver interface as Pport, at least one runnable entity must send data over the interface. Use one of the following possibilities to specify sending data:

• Implicit
• Explicit (without status)
• Explicit with status

Rules and restrictions are listed here: Sender-Receiver Communication -Rules

Implicit

1. Open the SWC you want to edit.

2. Enter the following code to use implicit write:

   <SRinterface>.<data_element> = <expression>;

   • <SRinterface> is the SenderReceiver interface used as Pport
   • <data_element> is the SenderReceiver interface element you want to write
   • <expression> is the expression or element you want to assign to the interface element

Explicit

1. Open the SWC you want to edit.

2. Enter the following code to use explicit write:

   <SRinterface>.<data_element>.explicitWrite(<expression>);

   • <SRinterface> is the SenderReceiver interface used as Pport
   • <data_element> is the SenderReceiver interface element you want to write
   • <expression> is the expression or element you want to assign to the interface element

Explicit with Status

1. Open the SWC you want to edit.

2. Declare a method-/runnable-local variable of type Std_ReturnType

   This variable will hold the status from the explicit write procedure.

3. Enter the following code to use explicit write with status information:

   <status_variable> = <SRinterface>.<data_element>.explicitWrite(<expression>);

   • <status_variable> is the variable of type Std_ReturnType that holds the returned status
   • <SRinterface> is the SenderReceiver interface used as Pport
   • <data_element> is the SenderReceiver interface element you want to write
   • <expression> is the expression or element you want to assign to the interface element

4. Specify the status inquiry as follows:

   if (<status_variable> != RTE_E_OK)

   {

   ... // your statement or statement block

   }

See also

Sender-Receiver Communication

Specifying a SenderReceiver or NVData Interface Prototype

RTE Access Macros – Error Codes

Sending to a Port – Block Diagram