c语言转java在线转换 c语言转化为java语言

#include <stdio.h>
 #define SYNC 0xAA
 #define EXCODE 0x55
 int parsePayload( unsigned char payload, unsigned char pLength ) {
 unsigned char bytesParsed = 0;
 unsigned char code;
 unsigned char length;
 unsigned char extendedCodeLevel;
 int i;
 / Loop until all bytes are parsed from the payload[] array… /
 while( bytesParsed < pLength ) {
 / Parse the extendedCodeLevel, code, and length /
 extendedCodeLevel = 0;
 while( payload[bytesParsed] == EXCODE ) {
 extendedCodeLevel++;
 bytesParsed++;
 }
 code = payload[bytesParsed++];
 if( code & 0x80 ) length = payload[bytesParsed++];
 else length = 1;
 / TODO: Based on the extendedCodeLevel, code, length,• and the [CODE] Definitions Table, handle the next
• “length” bytes of data from the payload as
• appropriate for your application.
/
 printf( “EXCODE level: %d CODE: 0x%02X length: %d\n”,
 extendedCodeLevel, code, length );
 printf( “Data value(s):” );
 for( i=0; i<length; i++ ) {
 printf( " %02X", payload[bytesParsed+i] & 0xFF );
 }
 printf( “\n” );
 / Increment the bytesParsed by the length of the Data Value */
 bytesParsed += length;
 }
 return( 0 );
 }
 int main( int argc, char *argv ) {
 int checksum;
 unsigned char payload[256];
 unsigned char pLength;
 unsigned char c;
 unsigned char i;
 / TODO: Initialize ‘stream’ here to read from a serial data• stream, or whatever stream source is appropriate for your
• application. See documentation for “Serial I/O” for your
• platform for details.
 */
 FILE stream = 0;
 stream = fopen( “COM4”, “r” );
 / Loop forever, parsing one Packet per loop… /
 while( 1 ) {
 / Synchronize on [SYNC] bytes /
 fread( &c, 1, 1, stream );
 if( c != SYNC ) continue;
 fread( &c, 1, 1, stream );
 if( c != SYNC ) continue;
 / Parse [PLENGTH] byte /
 while( true ) {
 fread( &pLength, 1, 1, stream );
 if( pLength ~= 170 ) break;
 }
 if( pLength > 169 ) continue;
 / Collect [PAYLOAD…] bytes /
 fread( payload, 1, pLength, stream );
 / Calculate [PAYLOAD…] checksum /
 checksum = 0;
 for( i=0; i<pLength; i++ ) checksum += payload[i];
 checksum &= 0xFF;
 checksum = ~checksum & 0xFF;
 / Parse [CKSUM] byte /
 fread( &c, 1, 1, stream );
 / Verify [CKSUM] byte against calculated [PAYLOAD…] checksum /
 if( c != checksum ) continue;
 / Since [CKSUM] is OK, parse the Data Payload */
 parsePayload( payload, pLength );
 }
 return( 0 );
 }
 写自定义目录标题)