Monday, March 12, 2012

Dnw for Ubuntu

Ашиглагдах зүйлс:
  1. Ubuntu 10.04
  2. OK6410 Сургалтын хавтан
  3. OTG USB холбогч
  4. Dnw4linux
  5. Minicom эсвэл өөр төрлийн сериал порттой харьцах програм.
DNW суулгах:
Энэ холбоосоор dnw4linux.zip файлыг татаж авна.

$ unzip dnw4linux.zip коммандаар задлана.

dnw хавтас дотор dnw.c файлыг дараах байдлаар өөрчилнө

dnw.c
  1. /* dnw2 linux main file. This depends on libusb.
  2. *
  3. * You should use lsusb to find out the actual vender ID & product ID of board.
  4. *
  5. * License:    GPL
  6. *
  7. */
  8.  

    1. #include 
    2. #include 
    3. #include 
    4. #include 
    5. #include 
    6. #include 
  10.  
  11. #define OK6410_VENDOR_ID        0x04e8
  12. #define OK6410_PRODUCT_ID       0x1234
  13.  
  14. #define OK6410_RAM_BASE         0x57e00000
  15.  
  16. #define RAM_BASE            OK6410_RAM_BASE
  17. #define VENDOR_ID           OK6410_VENDOR_ID
  18. #define PRODUCT_ID          OK6410_PRODUCT_ID
  19.  
  20. struct usb_dev_handle * open_port()
  21. {
  22.     struct usb_bus *busses, *bus;
  23.  
  24.     usb_init();
  25.     usb_find_busses();
  26.     usb_find_devices();
  27.  
  28.     busses = usb_get_busses();
  29.     for(bus=busses;bus;bus=bus->next)
  30.     {
  31.         struct usb_device *dev;
  32.         for(dev=bus->devices;dev;dev=dev->next)
  33.         {
  34.             if( VENDOR_ID==dev->descriptor.idVendor
  35.             &&  PRODUCT_ID==dev->descriptor.idProduct)
  36.             {
  37.                 printf("Target usb device found!\n");
  38.                 struct usb_dev_handle *hdev = usb_open(dev);
  39.                 if(!hdev)
  40.                 {
  41.                     perror("Cannot open device");   
  42.                 }
  43.                 else
  44.                 {
  45.                     if(0!=usb_claim_interface(hdev, 0))
  46.                     {
  47.                         perror("Cannot claim interface");
  48.                         usb_close(hdev);
  49.                         hdev = NULL;
  50.                     }
  51.                 }
  52.                 return hdev;
  53.             }
  54.         }
  55.     }
  56.  
  57.     printf("Target usb device not found!\n");
  58.  
  59.     return NULL;
  60. }
  61.  
  62. void usage()
  63. {
  64.     printf("Usage: dnw \n\n");
  65. }
  66.  
  67. static u_int16_t ace_csum(const unsigned char *data, u_int32_t len)
  68. {
  69.         u_int16_t csum = 0;
  70.         int j;
  71.  
  72.         for (j = 0; j < len; j ++) {
  73.                 csum += data[j];
  74.         }
  75.  
  76.         return csum;
  77. }
  78.  
  79. unsigned char* prepare_write_buf(char *filename, unsigned int *len)
  80. {
  81.     unsigned char *write_buf = NULL;
  82.     struct stat fs;
  83.  
  84.     int fd = open(filename, O_RDONLY);
  85.     if(-1==fd)
  86.     {
  87.         perror("Cannot open file");
  88.         return NULL;
  89.     }
  90.     if(-1==fstat(fd, &fs))
  91.     {
  92.         perror("Cannot get file size");
  93.         goto error;
  94.     }
  95.     write_buf = (unsigned char*)malloc(fs.st_size+10);
  96.     if(NULL==write_buf)
  97.     {
  98.         perror("malloc failed");
  99.         goto error;
  100.     }
  101.  
  102.     if(fs.st_size != read(fd, write_buf+8, fs.st_size))
  103.     {
  104.         perror("Reading file failed");
  105.         goto error;
  106.     }
  107.  
  108.     printf("Filename : %s\n", filename);
  109.     printf("Filesize : %lu bytes\n", fs.st_size);
  110.  
  111.     *((u_int32_t*)write_buf) = RAM_BASE;        //download address
  112.     *((u_int32_t*)write_buf+1) = fs.st_size + 10;    //download size;
  113.  
  114.     *len = fs.st_size + 10;
  115.  
  116.     // calculate checksum value
  117.     u_int16_t csum = ace_csum(write_buf+8, fs.st_size);
  118.     *(write_buf+fs.st_size+8) = csum & 0xff;
  119.     *(write_buf+fs.st_size+9) = (csum >> 8) & 0xff;
  120.     return write_buf;
  121.  
  122. error:
  123.     if(fd!=-1) close(fd);
  124.     if(NULL!=write_buf) free(write_buf);
  125.     fs.st_size = 0;
  126.     return NULL;
  127.  
  128. }
  129.  
  130. int main(int argc, char *argv[])
  131. {
  132.     if(2!=argc)
  133.     {
  134.         usage();
  135.         return 1;
  136.     }
  137.  
  138.     struct usb_dev_handle *hdev = open_port();
  139.     if(!hdev)
  140.     {
  141.         return 1;
  142.     }
  143.  
  144.     unsigned int len = 0;
  145.     unsigned char* write_buf = prepare_write_buf(argv[1], &len);
  146.     if(NULL==write_buf) return 1;
  147.  
  148.     unsigned int remain = len;
  149.     unsigned int towrite;
  150.     printf("Writing data ...\n");
  151.     while(remain)
  152.     {
  153.         towrite = remain>512 ? 512 : remain;
  154.         if(towrite != usb_bulk_write(hdev, 0x02, write_buf+(len-remain), towrite, 3000))
  155.         {
  156.             perror("usb_bulk_write failed");
  157.             break;
  158.         }
  159.         remain-=towrite;
  160.         printf("\r%d%%\t %d bytes     ", (len-remain)*100/len, len-remain);
  161.         fflush(stdout);
  162.     }
  163.     if(0==remain) printf("Done!\n");
  164.     return 0;
  165. }



дараа нь

$ gedit makefile коммандаар шинэ файл үүсгээд дараах кодыг хуулж, хадгална.

Makefile

  1. #!/usr/bin/make
  2. LDFLAGS=-lusb -lm
  3. CC=gcc
  4. all: dnw
  5.  
  6. clean:
  7.  -rm -f *.o dnw
  8.  
  9. dnw: dnw.o
  10.  $(CC) $(LDFLAGS) -o $@ $<
  11.  
  12. .PHONEY: all clean

Хөрвүүлэлт

DNW4Linux нь libusb сангийн тусламжтай хөрвүүлэгдэх учир хөрвүүлэлт хийхээсээ өмнө энэ санг нэмж суулшах хэрэгтэй. Үүний тулд: 

$ sudo apt-get install libusb-dev

Дараа нь хөрвүүлэлтийг хийнэ.

$ make

Хэрэглээ
 Сургалтын хавтангаа сериал портоор компьютертэй холбоно, Minicom ажиллуулна, хавтангаа асаана, uboot меню гарч ирэхэд ямар нэгэн товч дарна. Дараах байдалтай харагдана

--------------------------------------------------------------------------------------------------------------------------------------------------------------------------
U-Boot 1.1.6 (May 13 2011 - 16:11:02) for SMDK6410  
**************************************** 
**    u-boot 1.1.6                    ** 
**    Updated for TE6410 Board        ** 
**    Version 1.0 (10-01-15)          ** 
**    OEM: Forlinx Embedded           ** 
**    Web: http://www.witech.com.cn   ** 
****************************************  
CPU:     S3C6410 @532MHz
         Fclk = 532MHz, Hclk = 133MHz, Pclk = 66MHz, Serial = CLKUART (SYNC Mode)  
Board:   SMDK6410 
DRAM:    256 MB 
Flash:   0 kB 
NAND:    select s3c_nand_oob_mlc_128 2048 MB  
In:      serial 
Out:     serial 
Err:     serial 
Hit any key to stop autoboot:  0  

SMDK6410 #  

--------------------------------------------------------------------------------------------------------------------------------------------------------------------------

дараах коммандыг бичнэ
# dnw 50008000
өөр терминал нээж 
$ cd /home/arm9board/dnw
$./dnw path/to/uboot.bin

буцаад minicom ажиллаж буй терминал дээрээ 
# nand erase 0 100000


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