Writing S-Functions

ssSetInputPortDataType

Set the data type of an input port.

C Syntax

• void ssSetInputPortDataType(SimStruct *S,input_T port, DTypeId id)
  

Ada Syntax

• procedure ssSetInputPortDataType(S : in SimStruct; 
  port : in Integer := 0; id : in Integer);
  

Arguments

S
   SimStruct representing an S-Function block or a Simulink model.

port
   Index of an input port.

• id
  

ID of the data type accepted by port.

Description

Use this function in mdlInitializeSizes to set the data type of the input port specified by port. If the input port's data type is inherited from the block connected to the port, set the data type to DYNAMICALLY_TYPED.

Note    The data type of an input port is double (real_T) by default.

Languages

Ada, C

Example

Suppose that you want to create an S-function with two input ports, the first of which inherits its data type from the driving block and the second of which accepts inputs of type int8_T. The following code sets up the data types.

• ssSetInputPortDataType(S, 0, DYNAMICALLY_TYPED)
  ssSetInputPortDataType(S, 1, SS_INT8)
  

See Also
ssGetInputPortDataType

ssSetInputPortComplexSignal

ssSetInputPortDimensionInfo