Why is simulink data type conversion block altering the data when it should be typecasting?

Posted by Nick on Stack Overflow See other posts from Stack Overflow or by Nick
Published on 2010-05-20T16:07:15Z Indexed on 2010/05/20 16:10 UTC
Read the original article Hit count: 193

Filed under:

matlab

|

simulink

|

datatype

I am attempting to typecast some data from int32 to single. I first tried using the 'Data Type Conversion' block with single output data type and the Stored Integer option. However, I found that the datatype conversion block is not typecasting the data the way I expect it to. Am I using the block incorrectly, or is it failing to work as it should?

temp1 (pre conversion):
uint32: 1405695244
single: 1728356810752.000000
binary: 01010011110010010011010100001100

temp2 (post conversion):
uint32: 1319604842
single: 1405695232.000000
binary: 01001110101001111001001001101010

By the way, I have gotten around the issue by using an embedded Matlab block to perform the typecasting operation.

© Stack Overflow or respective owner

Related posts about matlab

Importing matlab functions in matlab

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I have some Matlab functions defined in .m files and I'd like to import them into Matlab (as in I'd like them to form part of the commands). Is this possible please and how can I do this? Thank you very much and regards, Krt_Malta >>> More
c# with matlab dll should be running on pc without matlab

as seen on Stack Overflow - Search for 'Stack Overflow'
hi, i have a very big problem. ich wrote a programm which is using a matlab dll. i build some classes with the matlab .net builder. it runs on my pc :) the problem is, i want to use ist on a pc without matlab. so i installed mcr, but it dont run :( what are the steps i should do? the system variable… >>> More
Matlab and .NET Interaction

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi All! I'm having an issue interacting between Matlab and .NET. I've managed to call .NET methods from Matlab code and vice versa. However, if I call a .NET method that, in turn, instantiates a Matlab object, it crashes (with a type initialization exception). Think about this scenario: a .NET… >>> More
Matlab matrix replacement assignment gives error

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello, when i tried to update some part of a matrix, i got the following error message: ??? Assignment has fewer non-singleton rhs dimensions than non-singleton subscripts My code tries to update some values of a matrix that represent a binary image. My code is as follows: outImage(3:5,2:4,1) =… >>> More
MATLAB matrix replacement assignment gives error

as seen on Stack Overflow - Search for 'Stack Overflow'
I tried to update some part of a matrix, I got the following error message: ??? Assignment has fewer non-singleton rhs dimensions than non-singleton subscripts My code tries to update some values of a matrix that represent a binary image. My code is as follows: outImage(3:5,2:4,1) = max(imBinary(3:5… >>> More

Related posts about simulink

Matlab Simulink version control with multiple developers

as seen on Stack Overflow - Search for 'Stack Overflow'
We're using Matlab Simulink for model development (and Real-Time Workshop autocoding) within a team of several developers. We currently use Visual Source Safe (yes, I know its terrible) for version control, using locks to prevent conflicting changes. We'd like to migrate our programme to a different… >>> More
Simulink: Implementing time delay in denominator

as seen on Stack Overflow - Search for 'Stack Overflow'
To multiply a signal by a time delay, I know I can use transport delay. However, if I want to reflect the time delay in a transfer function such as 1/( (s+1) * (1 - e^-s) ), what is the easiest way to implement that? Thanks in advance! >>> More
Simulink: type consistency errors

as seen on Stack Overflow - Search for 'Stack Overflow'
Using this Simulink model file as a reference, I'm trying to figure out the two following errors: I have no idea what has gone wrong with the data type consistency/conversion problems. Do you know what the error messages mean exactly in the context of a model? It would be great to get an interpretation… >>> More
Simulink: implementing a custom transfer function

as seen on Stack Overflow - Search for 'Stack Overflow'
Let's say I implement this m-file: Fq=tf(0.5^2,[1 2*0.7*0.5 0.5^2]); G=tf(0.006*[200 1],[80 1 0]); Q=Fq/G; open Inner_Loop.mdl Inside Inner_loop.mdl, if I want to implement/model a transfer function block using G, how can it be achieved easily? Thanks in advance. >>> More
Matlab Simulink: Transfer Function

as seen on Stack Overflow - Search for 'Stack Overflow'
I am trying to model a transfer function block for let's say 1/(s+1). I am having a hard time coming up with proper search terms for it, hence having trouble finding out how I can achieve this on the Internet. What is the easiest way to implement a block for a transfer function in Simulink? Thanks… >>> More