串口字符转十六进制

最新推荐文章于 2021-02-09 14:05:45 发布

原创最新推荐文章于 2021-02-09 14:05:45 发布 · 1.8k 阅读

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int strHex2int(char *inBuf,unsigned char *sendBuf,int len)
{
int index=0;
int resdex=0;

   memset(sendBuf,0,sizeof(unsigned char)*15);

   if(inBuf==NULL||sendBuf==NULL)
       return -1;

   system_log("###### len %d",len);
   for(index=0;index<len;index++)
   {
       system_log("##### index:%d",index);
       if(inBuf[index]>='0'&&inBuf[index]<='9')
           sendBuf[resdex]=inBuf[index]-'0';
       else if(inBuf[index]>='a'&&inBuf[index]<='f')
           sendBuf[resdex]=inBuf[index]-'a'+10;
       else if(inBuf[index]>='A'&&inBuf[index]<='F')
           sendBuf[resdex]=inBuf[index]-'A'+10;
       else if(inBuf[index]==' ')
           continue;
       else
           return -1;
       index++;

       if(inBuf[index]>='0'&&inBuf[index]<='9')
           sendBuf[resdex]=inBuf[index]-'0'+sendBuf[resdex]*16;
       else if(inBuf[index]>='a'&&inBuf[index]<='f')
           sendBuf[resdex]=inBuf[index]-'a'+10+sendBuf[resdex]*16;
       else if(inBuf[index]>='A'&&inBuf[index]<='F')
           sendBuf[resdex]=inBuf[index]-'A'+10+sendBuf[resdex]*16;
       else if(inBuf[index]==' ')
           continue;
       else
           return -1;
       system_log("######sendBuf[%d]: 0x%02x",resdex,sendBuf[resdex]);
       if(resdex>=15)
           return -1;
       resdex++;
   }

   return resdex;
}