mini2440_x35 ubuntu下使用dnw进行传送文件

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需要libusb的支持，使用apt-get install libusb进行安装
注意QQ2440_SECBULK_IDVENDOR 以及 QQ2440_SECBULK_IDPRODUCT的值，我使用的是方口进行数据传输，对应的值是0x5345以及0x1234。下面介绍如何查询这两个值

将开发版拨到NOR，并开机
输入lisusb，可以看到

Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching HubBus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hubBus 001 Device 003: ID 13d3:5165 IMC Networks Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching HubBus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hubBus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hubBus 003 Device 005: ID 5345:1234 Owon PDS6062T OscilloscopeBus 003 Device 002: ID 0461:4de2 Primax Electronics, Ltd Bus 003 Device 004: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) ICBus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Owon PDS6062T就是我们的方口啦，它的ID就是5345:1234

dnw源代码

    #include <stdio.h>      #include <usb.h>      #include <errno.h>      #include <sys/stat.h>      #include <fcntl.h>      #include <unistd.h>      #define                 QQ2440_SECBULK_IDVENDOR                0x5345      #define                QQ2440_SECBULK_IDPRODUCT        0x1234      struct usb_dev_handle * open_port()      {              struct usb_bus *busses, *bus;              usb_init();              usb_find_busses();              usb_find_devices();              busses = usb_get_busses();              for(bus=busses;bus;bus=bus->next)              {                       struct usb_device *dev;                      for(dev=bus->devices;dev;dev=dev->next)                      {                      printf("idVendor:0x%x\t,ipProduct:0x%x\n",dev->descriptor.idVendor,dev->descriptor.idProduct);                              if( QQ2440_SECBULK_IDVENDOR==dev->descriptor.idVendor                              &&  QQ2440_SECBULK_IDPRODUCT==dev->descriptor.idProduct)                              {                                      printf("Target usb device found!\n");                                      struct usb_dev_handle *hdev = usb_open(dev);                                      if(!hdev)                                      {                                              perror("Cannot open device");                                              }                                      else                                      {                                              if(0!=usb_claim_interface(hdev, 0))                                              {                                                      perror("Cannot claim interface");                                                      usb_close(hdev);                                                      hdev = NULL;                                              }                                      }                                      return hdev;                              }                      }              }              printf("Target usb device not found!\n");              return NULL;      }      void usage()      {              printf("Usage: dnw2 <file>\n\n");      }      unsigned char* prepare_write_buf(char *filename, unsigned int *len)      {              unsigned char *write_buf = NULL;              struct stat fs;              int fd = open(filename, O_RDONLY);              if(-1==fd)              {                      perror("Cannot open file");                      return NULL;              }              if(-1==fstat(fd, &fs))              {                      perror("Cannot get file size");                      goto error;              }              write_buf = (unsigned char*)malloc(fs.st_size+10);              if(NULL==write_buf)              {                      perror("malloc failed");                      goto error;              }              if(fs.st_size != read(fd, write_buf+8, fs.st_size))              {                      perror("Reading file failed");                      goto error;              }              printf("Filename : %s\n", filename);              printf("Filesize : %d bytes\n", fs.st_size);              *((u_int32_t*)write_buf) = 0x30000000;                //download address              *((u_int32_t*)write_buf+1) = fs.st_size + 10;        //download size;              *len = fs.st_size + 10;              return write_buf;      error:              if(fd!=-1) close(fd);              if(NULL!=write_buf) free(write_buf);              fs.st_size = 0;              return NULL;      }      int main(int argc, char *argv[])      {              if(2!=argc)              {                      usage();                      return 1;              }              struct usb_dev_handle *hdev = open_port();              if(!hdev)              {                      return 1;              }              unsigned int len = 0;              unsigned char* write_buf = prepare_write_buf(argv[1], &len);              if(NULL==write_buf) return 1;              unsigned int remain = len;              unsigned int towrite;              printf("Writing data ...\n");              while(remain)              {                      towrite = remain>512 ? 512 : remain;                      if(towrite != usb_bulk_write(hdev, 0x03, write_buf+(len-remain), towrite, 3000))                      {                              perror("usb_bulk_write failed");                              break;                      }                      remain-=towrite;                      printf("\r%d%\t %d bytes     ", (len-remain)*100/len, len-remain);                      fflush(stdout);              }              if(0==remain) printf("Done!\n");              return 0;      }

gcc -o dnw2 dnw.c 进行编译
./dnw2 filename 进行传输。
网络上很多代码都是需要加载驱动之类的，我试过了好多，都失败了。这个方法是可行的

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