下载地址https://download.csdn.net/download/u011171361/10888629
包含两个工具：scebulk（USB驱动） 、dnw（下载工具）
一.编译安装scebulk
1.进入dnw4linux-master/secbulk_driver
root@ubuntu:/opt/smart210/mywork/u-boot/smart210# cd dnw4linux-master/
root@ubuntu:/opt/smart210/mywork/u-boot/smart210/dnw4linux-master# cd secbulk_driver/
root@ubuntu:/opt/smart210/mywork/u-boot/smart210/dnw4linux-master/secbulk_driver#
2.电脑用USB线连接到开发板，上电，执行dmsg 可以得知，开发板 idVendor=18d1, idProduct=0002 ， 记住这两个数（可以先执行dmesg -c 清除之前的记录信息，上电，再dmesg）
root@mylubuntu:/opt/FriendlyARM/mini210/linux/u-boot/smart210/dnw4linux-master# dmesg
[13659.955331] usb 1-1: USB disconnect, device number 6
[13664.697520] usb 1-1: new high-speed USB device number 7 using ehci-pci
[13664.997025] usb 1-1: New USB device found, idVendor=18d1, idProduct=0002
[13664.997029] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[13664.997031] usb 1-1: Product: 210Series
[13664.997033] usb 1-1: Manufacturer: FriendlyARM
[13664.997034] usb 1-1: SerialNumber: Mini210
3.进入secbulk目录，编辑secbulk.c文件,找到如下：
#define BULKOUT_BUFFER_SIZE 512 //改成512 可以加快下载速度
#ifdef OK6410
#define DOWNLOAD_USB_ID_MAJOR 0x04e8
#define DOWNLOAD_USB_ID_MINOR 0x1234
#else /* add your usb info if neccessary */
#define DOWNLOAD_USB_ID_MAJOR 0x18d1 //根据自己的情况填写
#define DOWNLOAD_USB_ID_MINOR 0x0002 //根据自己的情况填写
#endif
4.编译 make -C /lib/modules/`uname -r`/build M=`pwd` modules ，顺利会产生secbulk.ko
root@ubuntu:/opt/smart210/mywork/u-boot/smart210/dnw4linux-master/secbulk_driver# make -C /lib/modules/`uname -r`/build M=`pwd` modules
make: Entering directory '/usr/src/linux-headers-4.8.0-52-generic'
CC [M] /opt/smart210/mywork/u-boot/smart210/dnw4linux-master/secbulk_driver/secbulk.o
In file included from ./include/linux/printk.h:6:0,
from ./include/linux/kernel.h:13,
from /opt/smart210/mywork/u-boot/smart210/dnw4linux-master/secbulk_driver/secbulk.c:1:
/opt/smart210/mywork/u-boot/smart210/dnw4linux-master/secbulk_driver/secbulk.c: In function ‘secbulk_write’:
./include/linux/kern_levels.h:4:18: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘size_t {aka long unsigned int}’ [-Wformat=]
#define KERN_SOH "\001" /* ASCII Start Of Header */
^
./include/linux/kern_levels.h:10:18: note: in expansion of macro ‘KERN_SOH’
#define KERN_ERR KERN_SOH "3" /* error conditions */
^
/opt/smart210/mywork/u-boot/smart210/dnw4linux-master/secbulk_driver/secbulk.c:80:11: note: in expansion of macro ‘KERN_ERR’
printk(KERN_ERR "secbulk:usb_bulk_msg failed! ret = %d to_write = %d actual_length = %d \n
^
Building modules, stage 2.
MODPOST 1 modules
CC /opt/smart210/mywork/u-boot/smart210/dnw4linux-master/secbulk_driver/secbulk.mod.o
LD [M] /opt/smart210/mywork/u-boot/smart210/dnw4linux-master/secbulk_driver/secbulk.ko
make: Leaving directory '/usr/src/linux-headers-4.8.0-52-generic'
root@ubuntu:/opt/smart210/mywork/u-boot/smart210/dnw4linux-master/secbulk_driver# ls
Makefile Module.symvers secbulk.ko secbulk.mod.o
modules.order secbulk.c secbulk.mod.c secbulk.o
5.安装并查看安装情况 insmod secbulk.ko
root@ubuntu:/opt/smart210/mywork/u-boot/smart210/dnw4linux-master/secbulk_driver# insmod secbulk.ko
root@ubuntu:/opt/smart210/mywork/u-boot/smart210/dnw4linux-master/secbulk_driver# lsmod | grep secbulk
secbulk 16384 0
6.开机自动加载secbulk.ko
开机的时候不会自动加载.ko文件，这样每次都要先加载才可以使用，此时将其加入开机脚本，
使其得到自动加载,编辑/etc/init.d/rc.local 在最后加上 insmod /所在路径/secbulk.ko
sudo gedit /etc/init.d/rc.local
insmod /opt/smart210/mywork/u-boot/smart210/dnw4linux-master/secbulk_driver/secbulk.ko
二.测试DNW下载
方法一：进入dnw_src目录，修改dnw.c文件中DOWNLOAD_ADDR的定义，将其设为你的开发板的下载地址；
方法二：./dnw -a 0x20000000 -f buzzer.bin
root@ubuntu:/opt/smart210/mywork/u-boot/smart210/dnw4linux-master/dnw_src# ./dnw -a 0x20000000 -f buzzer.bin
get hex addr: 0x20000000
File name : buzzer.bin
File size : 276 bytes
Start Sending data...
Dest address: 0x20000000
Sent 100% 286 bytes !OK
参考：https://blog.csdn.net/a470038781/article/details/53037814