Persistent variables not working? (Simulink)

2 次查看（过去 30 天）
Mike Vukovich
Mike Vukovich 2014-12-17
评论： Jared Mach 2018-2-22
I'm trying to implement the following simple test function in Simulink:
function [y, newx] = fcn(xI, T)
%This is a very simple function meant for learning how to properly
%implement "pseudo-feedback" in Simulink.
%xI is merely the initial value of x.
%#codegen
mlock
persistent currentX;
double x;
if isempty(currentX)
x = xI;
else
x = currentX;
end
for t = 1:T
if t > 1
newx = x;
end
y = 1/x;
newx = x+1;
end
end
However, when I try running the model (with a constant input and displays connected to the output), I get the following error message:
Undefined function or variable 'currentX'. The first assignment to a local variable determines its class.
Could anyone help identify the problem?

请先登录，再回答此问题。

回答（1 个）

Azzi Abdelmalek
Azzi Abdelmalek 2014-12-17
currentX is not defined in your code

类别

在 Help Center 和 File Exchange 中查找有关 Texas Instruments C2000 Processors 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by