Demultiplexer

Library

Branching

Description

Given a vector valued input this block splits inputs over vector valued outputs. So $u=[y_1;y_2,\cdots;y_n]$ , where $y_i$ are numbered from top to bottom. Input and Output port sizes are determined by the context.

Dialog Box

Set DEMUX block parameters
number of output ports or vector of sizes	2

• number of output ports or vector of sizes:positive integer less than or equal to $8$.

Default properties

• always active: no
• direct-feedthrough: yes
• zero-crossing: no
• mode: no
• number/sizes of inputs: 1 / 0
• number/sizes of outputs: 2 / -1 -2
• number/sizes of activation inputs: 0 /
• number/sizes of activation outputs: 0 /
• continuous-time state: no
• discrete-time state: no
• name of computational function: multiplex

Interfacing function

scilab/macros/scicos_blocks/branching/DEMUX.sci

Computational function (type 4)

#include "scicos_block.h"
#include <math.h>

void multiplex(scicos_block *block,int flag)
{
  int i,j,k;
  if (block->nin==1){
    k=0;
    for (i=0;i<block->nout;++i){
      for (j=0;j<block->outsz[i];++j){
	block->outptr[i][j]=block->inptr[0][k];
	++k;
      }
    }
  }else {
    k=0;
    for (i=0;i<block->nin;++i){
      for (j=0;j<block->insz[i];++j){
	block->outptr[0][k]=block->inptr[i][j];
	++k;
      }
    }
  }
}