netbroadcastaddris used,and if unknown, the char[6]={0,0,0,0,0,0} of all zeros is specified. Dest: The IP address of the destination . Specify 0If it is a broadcast, ora ulong value if unicast. You can specify a global variable that is already set NetserveripDport: Destination port for packet sending, i.e. remote portSport: Not "Sport", but "Source-port". Source port for package sendLen: The length of the UDP packet body. Before sending, you need to set the text in advance, see below for instr
The execution process of Nic dm9000 (U-boot version: u-boot-1.1.6):Inside the BOARD.C there are eth_initialize (GD->BD);The implementation of Eth_initialize is in eth.c, but there is no dm9000 initialization in the Eth_initialize function eth_initIt is common to have nfs,tftp,ping command to use the network equipment, can start from here.U_boot_cmd (Ping, 2, 1, do_ping,"Ping\t-send ICMP echo_request to Network host\n","Pingaddress\n");and its processing function do_ping as follows:int do_ping (c
;
The next step is to send the echo request for the ICMP protocol and receive the Echo reply, which means the ping is out.
In fact, from the host to PCDUINO3 send ping process is the same, we just need to add a few lines of simple code on it,
Add a recvping command for Uboot:
static int recv_ping (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
printf ("recv ping command Excute \ n ");
if (Netloop (recvping)
Next, add the processi
restart, you will be prompted to do so, and devcon will return the error level "1 ". If "-R" is specified, automatic restart is triggered (If yes ).
Devcon-R install Windows directory \ INF \ netloop. inf * msloop
Install a new instance of the Microsoft loopback adapter. This will create a new device node with root enumeration to allow you to install "Virtual Devices" (such as loopback adapters ). This command also restarts the computer without a pro
The network card that comes with Microsoft cannot be changed to start with 02. You can use a cracked network card. Modify the MAC address of the NIC at will.
: Http://download.csdn.net/detail/blaider/5856193
Open the control panel and select "add Hardware"
Select "yes, I have connected to this hardware"
Select "Add new hardware device" at the bottom of the list"
Select "install hardware I manually selected from the list (advanced )"
Sel
Installing kernel-ntfs conflicts with ipv6 and other modules-Linux general technology-Linux programming and kernel information. for details, refer to the following section. 1. I installed linux5, kernel is 2.6.18-8el5xen, in order to mount the NTFS format partition, installed the kernel-module-ntfs-2.6.18-8.el5xen-2.1.27-0.rr.10.11.i686.rpm package. After the installation is successful, depmod ntfs. ko; modprobe ntfs loads the ntfs module, dmesg | gret NTFS can see that there is ntfs driver.
Af
U-boot and ping commands
The Development Board runs U-boot. The ping command on the terminal can be used to ping the PC, but the PC can ping different U-boot.
When developing an Ethernet Driver Under U-boo, you can only ping the external host on the target to check whether the Ethernet is connected. If you ping the target board on the external host, the Ping fails even if all Ethernet entries on the target board are OK. This is because the Row U-boo is a single-thread main_loop Function + inte
implementations under different operating systems, the most versatile select (), POSIX poll (), Linux epoll (), FreeBSD kqueue, and so on, with fixed numbers and fully defined functions, regardless of extension. Then design a netloop base class plus a number of specific classes is a good solution.
interface-based design
The question comes from the classic discussion that the flightless penguin (Penguin) should not inherit from the bird (Bird) If Bird
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