本帖最后由 飞鹰嵌入式 于 2012-6-12 23:18 编辑
1/需要minicom
这个在环境搭建里面已经介绍了
下面介绍一种图形界面的
先在电脑上安装 cutecom:$sudo apt-get install cutecom
运行
$sudo cutecom
这个和xp下的超级终端一样，而且图形界面，比minicom容易上手。
2/需要dnw2，下面就是dnw2的安装
dnw2 安装说明：
dnw2.c 文件
/* dnw2 linux main file. This depends on libusb.
*
* Author: feiying
* License: GPL
*
*/
#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;
}
把此文件保存成 dnw2.c
1, 安装 libusb 库
$ sudo apt-get install libusb-dev
2, 编译 dnw2.c 文件
$ gcc dnw2.c -o dnw2 -lusb
3, 把生成的 dnw2 移动到 /usr/bin 里面
$ sudo mv dnw2 /usr/bin
4，PC 链接 mini2440开发板，在终端里面运行
$ sudo minicom
打开 串口，按相应键进入 USB 传输
5，再开一个终端，输入
$ sudo dnw2 /work/路径/文件名
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