stateflow

2011 6 15
1 个回答
回答已采纳
4 次查看（30 天）

0 个投票

Hi all, Here I am using "after(0.025, sec)" in statechart for generating pulse, but when it wached on scope,its generating at 0.03, why is the difference. Can any help me how to make exact at 0.025.

3 个评论
显示 1更早的评论 隐藏 1更早的评论

Gerd
Gerd 2011-6-15
Hi Murali,
what is the update interval of your simulink model. How did you manage to have the 0.025sec?
Gerd
Arnaud Miege
Arnaud Miege 2011-6-15
Also, how often does your chart update?
Murali Mohan
Murali Mohan 2011-6-17
sample time provided for the model is 0.01

请先登录，再进行评论。

请先登录，再回答此问题。

 采纳的回答

Gerd
Gerd 2011-6-17

0 个投票

Hi Murali,
using a sample time of 0.01s for your model lets you only generate pulses with a multiple of the basic sample time(0.01 / 0.02 / 0.03) If you want to generate a pulse of 0.025 you have to increase your sample time to e.g. 0.001s
Gerd

3 个评论
显示 1更早的评论 隐藏 1更早的评论

Murali Mohan
Murali Mohan 2011-6-17
Thans Gerd,
I am tried with your ans, but still the same.
Pls refer stateflow example of "sf_abstemporal_basic.mdl" present in matlab. change the step time to 0.1 to 0.01 In chart "WithAbsoluteTime":make the transition as "after(0.025,sec)" Observed result is generating the pulse @0.03sec, can any one explains why? how to get the exactly at 0.025.
Let me know if any details required
Gerd
Gerd 2011-6-17
Murali,
please open the model.
Double click on the upper chart "With absolute Time".
Change the transition to "After(0.025,sec)".
Hit Ctrl+E. Change the fundamental sample time to 0.001.
Open the scope and open Parameter pane. Go to "History".
Deselect Limit data points to last.
Run the model and observe the result.
I did these steps and the result is Ok
Murali Mohan
Murali Mohan 2011-6-17
Thanks Gerd for your reply :)

请先登录，再进行评论。

更多回答（0 个）

类别

在 帮助中心 和 File Exchange 中查找有关 Decision Logic 的更多信息

产品

标签

Community Treasure Hunt

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

Start Hunting!

Translated by