Simulink S-function builder reading inputs
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Hello all,
I have just started to learn how to implement the S-functions via
the Simulink S-function builder. I have been attempting to model
a discrete system with two 1-D inputs (act and ref) and one
1-D output (u). My C language code for the outputs calculation is
following
double ref;
double act;
double e;
e = ref - act;
u[0] = e;
The building process is successful but whenever I start the simulation
process there is zero at the S-function block output despite the fact
that the ref input is non-zero.
I have also tried a different version of C code:
double ref;
double act;
double e;
e = ref[0] - act[0];
u[0] = e;
But in that case I was not able to build the code.
Can anybody tell me what I have been doing wrong?
回答（1 个）
Fangjun Jiang
2019-9-9
0 个投票
"u" is usually referred as inputs, "y" is usually referred as outputs.
You need to go through the S-Function Builder Dialog Box to fill the info and copy&paste your C code.
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2019-9-8
2019-9-9
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