FlexRay头部CRC校验求助（已解决）

jizhouyou · 发表于 2014-7-11 11:45:47

int main(void)
{
unsigned int vCrcReg =0x1A;
unsigned int vNextBit=0;
unsigned int vCrcNext =0;
unsigned int vCrcSize =11;
unsigned int vCrcPolynomial =0x385;
unsigned int mask=1;
unsigned int vCrcRegTemp=0;
unsigned value = 0x00809; //s1=0,s2=0,FID=9,payloadlenth=16 //头部要校验的信息
int i=0;
for(i=0;i

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jizhouyou · 发表于 2014-7-13 19:55:35

谢谢你，二楼的朋友，FlexRay头部校验搞定了，多项式我搞错了，实现代码如下，共享一下，
攒一下人品。 ^ - ^

#include
#include
using namespace std;
/* run this program using the console pauser or add your own getch, system("pause") or input loop */

int main(void)
{
    unsigned int vCrcReg =0x1A;
    unsigned int vNextBit=0;
    unsigned int vCrcNext =0;
    unsigned int vCrcSize =11;
    unsigned int vCrcPolynomial =0xB85;
    unsigned int vMask=1;
    unsigned int vCrcRegTemp=0;
    unsigned vData = 0x00490; //s1=0,s2=0,FID=9,payloadlenth=16//要验证的信息
    int i=0;

    for(i=0;i=0)
    {
         vNextBit = (vData &(0x0000001u >i;
         vCrcNext = (vNextBit)^((vCrcReg & (0x000001u (vCrcSize-1));
         vCrcReg