LZY\79495
84 lines
1.7 KiB
C
84 lines
1.7 KiB
C
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/*
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* Include Files
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*
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*/
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#if defined(MATLAB_MEX_FILE)
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#include "tmwtypes.h"
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#include "simstruc_types.h"
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#else
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#define SIMPLIFIED_RTWTYPES_COMPATIBILITY
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#include "rtwtypes.h"
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#undef SIMPLIFIED_RTWTYPES_COMPATIBILITY
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#endif
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/* %%%-SFUNWIZ_wrapper_includes_Changes_BEGIN --- EDIT HERE TO _END */
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#include <math.h>
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#include <stdint.h>
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#include <stddef.h>
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/* %%%-SFUNWIZ_wrapper_includes_Changes_END --- EDIT HERE TO _BEGIN */
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#define u_1_width 1
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#define y_width 1
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/*
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* Create external references here.
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*
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*/
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/* %%%-SFUNWIZ_wrapper_externs_Changes_BEGIN --- EDIT HERE TO _END */
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/* extern double func(double a); */
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uint32_t CRC32Value(int i)
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{
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int j;
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uint32_t u1CRC;
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u1CRC=i;
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for(j=8 ;j>0 ;j-- )
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{
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if(u1CRC& 1)
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u1CRC =(u1CRC >> 1)^0xEDB88320L;
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else
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u1CRC >>= 1;
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}
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return u1CRC;
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}
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uint32_t CalculateBlockCRC32(uint32_t u1Count,uint8_t *ucBuffer)
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{
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uint32_t u1Temp1;
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uint32_t u1Temp2;
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uint32_t u1CRC=0;
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while(u1Count-- != 0)
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{
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u1Temp1 = u1CRC>>8 &0x00FFFFFFL;
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u1Temp2 = CRC32Value(((int)u1CRC ^ *ucBuffer++) & 0xff);
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u1CRC=u1Temp1 ^ u1Temp2;
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}
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return u1CRC;
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}
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/* %%%-SFUNWIZ_wrapper_externs_Changes_END --- EDIT HERE TO _BEGIN */
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/*
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* Output function
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*
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*/
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void get_snc_crc32_Outputs_wrapper(const uint8_T *ucBuffer,
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const uint32_T *u1Count,
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uint32_T *u1CRC,
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const int_T u_width)
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{
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/* %%%-SFUNWIZ_wrapper_Outputs_Changes_BEGIN --- EDIT HERE TO _END */
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/* This sample sets the output equal to the input
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y0[0] = u0[0];
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For complex signals use: y0[0].re = u0[0].re;
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y0[0].im = u0[0].im;
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y1[0].re = u1[0].re;
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y1[0].im = u1[0].im;
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*/
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u1CRC[0] = CalculateBlockCRC32(u1Count[0], ucBuffer);
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/* %%%-SFUNWIZ_wrapper_Outputs_Changes_END --- EDIT HERE TO _BEGIN */
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}
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