VC + + 6.0 c8051f340 USB communication CAN Data analysis

//HelloWorld.cpp:Defines the entry point for the console application.///***************************************************************************** * VC + + 6.0 C8051F340 USB Communication CAN Data Resolution * Declaration: * 1. This is the "VC + + 6.0 c8051f340 USB pc-side communication Demo" based on the code; * 2. As you can see, this article will only comment on the relative importance of the content. * 3. This paper mainly obtains the data of can through USB, and resolves the data in it.
* 4.  Frame format can be consulted: http://wenku.baidu.com/view/f508511d6bd97f192279e902.html * * 2015-7-11 Sunny Shenzhen Nanshan Ping Shan village Zengjianfeng ****************************************************************************/#include"stdafx.h"#include<windows.h>#include<time.h>#include"SiUSBXp.h"#include<string.h>intMainintargcChar*argv[]) {printf ("Hello world!\n"); HANDLE M_husbdevice=Invalid_handle_value; DWORD dwnumdevices=0; Si_getnumdevices (&dwnumdevices); printf ("ZENGJF debug:dwnumdevices =%d.\n", dwnumdevices); if(Dwnumdevices = =0 )        returnFALSE; if(Si_open (1, &m_husbdevice) = =si_success) printf ("zengjf debug:si_open usbdevice success.\n"); Elseprintf ("zengjf debug:si_open usbdevice fails.\n"); Chartestdata[ -]  ="ZENGJF"; DWORD Haswritten=0; DWORD Hasread=0; DWORD Timecount=0;  while(true) {Sleep ( -); //Take 6 frames of data to exit the program, as a test program, this amount is almost        if(timecount++ >6 )             Break; memset (TestData,0,sizeof(TestData)); if(Si_read (M_husbdevice, TestData, +, &hasread) = =si_success) {printf ("ZENGJF debug:si_read usbdevice success, hasread length =%d.\n", Hasread); //prints a received frame of data in 16-binary formprintf"printf All data:\n\t");  for(DWORD i =0; i < Hasread; i++) printf ("%02x", Testdata[i] &0xFF); printf ("\ n"); //determine whether the received data is a remote frame or a data frame            if(testdata[0] & (1<<6)) printf ("Frame format:remote frame.\n"); Elseprintf ("Frame format:data frame.\n"); //Output Data Lengthprintf"Frame Data length:%d.\n", testdata[0] &0xf); //Whether the output is an extended frame or a standard frame            if(testdata[0] & (1<<7) {printf ("Frame type:extend frame.\n"); //parse the ID of an extended frameprintf"ID:%x.\n", (((testdata[1] &0x0ff) << +) |((testdata[2] &0x0ff) << -) |((testdata[3] &0x0ff) <<5)  |((testdata[4] >>3) &0x1f))); //converts a binary value to a character number                 for(DWORD i =5; i < Hasread; i++) Testdata[i]+='0'; //Show all the received dataprintf"ZENGJF debug:show data from c8051f340--testdata[%s].\n", testdata+5); } Else{printf ("Frame Type:standard frame.\n"); //Resolving the ID of a standard frameprintf"ID:%x.\n", (((testdata[1] &0x0ff) <<3) | ((testdata[2] >>5) &0x7))); //converts a binary value to a character number                 for(DWORD i =3; i < Hasread; i++) Testdata[i]+='0'; //Show all the received dataprintf"ZENGJF debug:show data from c8051f340--testdata[%s].\n", testdata+3); }        } Else{printf ("zengjf debug:si_read usbdevice fails.\n");  Break; }    }    if(Si_close (m_husbdevice) = =si_success) printf ("zengjf debug:si_close usbdevice success.\n"); Elseprintf ("zengjf debug:si_close usbdevice fails.\n"); return 0;}

VC + + 6.0 c8051f340 USB communication CAN Data analysis