jc_0643: Fixed-point setting
Sub ID Recommendations
NA-MAAB — No recommendations
JMAAB — a
MATLAB Versions
All
Rule
Sub ID a
When block parameter Data type is a set to
fixdt
(fixed-point) and Scaling is
set to Slope and bias
, parameter Bias
shall be set to 0
.
Not Applicable
Rationale
Sub ID a:
When the bias in a model is not uniform:
Behavior of the model is impossible to determine by its appearance.
Unintended overflows and underflows occur.
Results in wasteful operation and deterioration of code efficiency/computing load.
Verification
Model Advisor check: Check usage of fixed-point data type with non-zero bias (Simulink Check)
Last Changed
R2020a
See Also
JMAAB guideline jc_0643, which is available in Control Algorithm Modeling Guidelines Using MATLAB, Simulink, and Stateflow on the MathWorks® website.
Version History
Introduced in R2020a