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;
}
int main(int argc, char *argv[])
{
unsigned load_addr = RAM_BASE;
char* path = NULL;
int c;
//处理命令行参数
while ((c = getopt (argc, argv, "a:h")) != EOF)
switch (c)
{
case 'a':
load_addr = strtol(optarg, NULL, 16);
continue;
case '?':
case 'h':
default:
usage:
printf("Usage: dwn2 [-a load_addr] <filename>\n");
printf("Default load address: 0x40008000\n");
return 1;
}
if (optind < argc)
path = argv[optind];
else
goto usage;
printf("load address: 0x%08X\n", load_addr);
//打开设备文件
struct usb_dev_handle *hdev = open_port();
if (!hdev)
{
return 1;
}
//准备写入空间
unsigned int len = 0;
unsigned char* write_buf = prepare_write_buf(path, &len, load_addr);
if (NULL == write_buf)
return 1;
//写入数据
unsigned int remain = len;
unsigned int towrite;
printf("Writing data ...\n");
while (remain)
{
towrite = remain > 512 ? 512 : remain;
if (towrite != usb_bulk_write(hdev, 0x02, 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;
}
