Register fixed-point data type with binary-point-only scaling and return its data type ID
extern DTypeId ssRegisterDataTypeFxpBinaryPoint (SimStruct *S, int isSigned, int wordLength, int fractionLength, int obeyDataTypeOverride)
SimStruct representing an S-function block.
TRUE if the data type is signed.
FALSE if the data type is unsigned.
Total number of bits in the data type, including any sign bit.
Number of bits in the data type to the right of the binary point.
TRUE indicates that the Data Type
Override setting for the subsystem is to be obeyed.
Depending on the value of Data Type Override,
the resulting data type could be
Scaled double, or
the fixed-point data type specified by the other arguments of the
FALSE indicates that the Data Type
Override setting is to be ignored.
This function fully registers a fixed-point data type with the Simulink® software and returns a data type ID. Note that unlike the standard
ssRegisterDataType, you do
not need to take any additional registration steps. The data type ID can be used
to specify the data types of input and output ports, run-time parameters, and
DWork states. It can also be used with all the standard data type access methods
simstruc.h, such as
Use this function if you want to register a fixed-point data type with binary-point-only scaling. Alternatively, you can use one of the other fixed-point registration functions:
ssRegisterDataTypeFxpFSlopeFixExpBias to register a data
type with [Slope Bias] scaling by specifying the word length, fractional
slope, fixed exponent, and bias.
ssRegisterDataTypeFxpScaledDouble to register a scaled
ssRegisterDataTypeFxpSlopeBias to register a data type
with [Slope Bias] scaling.
If the registered data type is not one of the Simulink built-in data types, a Fixed-Point Designer™ software license is checked out. To prevent a Fixed-Point Designer software license from being checked out when you simply open or view a model, protect registration calls with
if (ssGetSimMode(S) != SS_SIMMODE_SIZES_CALL_ONLY ) ssRegisterDataType...
Because of the nature of the assignment of data type IDs, you should always use API functions to extract information from a data type ID about a data type in your S-function. For more information, refer to Data Type IDs.
To use this function, you must include
fixedpoint.c. For more information, see Structure of the S-Function.
None. Data types should be registered in the Simulink software. Registration of data types is not supported in TLC.