¶ Ethernet programming
YY3568 supports 1 Gigabit Ethernet port (Ethernet0) and 1 2.5Gbps Ethernet port (Ethernet1).
¶ 1 dts configuration
¶ 1.1 soc general configuration
¶ 1.2 Development board configuration
¶ 2 Connectivity test
¶ 2.1 View network card node
linaro@linaro-alip:~$ ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.14 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fe80::80ef:1567:63c9:4c3c prefixlen 64 scopeid 0x20<link>
ether ae:66:6d:e6:89:eb txqueuelen 1000 (Ethernet)
RX packets 226057 bytes 102260286 (97.5 MiB)
RX errors 0 dropped 20330 overruns 0 frame 0
TX packets 14258 bytes 1453498 (1.3 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 72
eth1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.16 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fe80::8404:6967:3fe1:2517 prefixlen 64 scopeid 0x20<link>
ether 9a:df:d7:1f:52:58 txqueuelen 1000 (Ethernet)
RX packets 192 bytes 17570 (17.1 KiB)
RX errors 0 dropped 20 overruns 0 frame 0
TX packets 16 bytes 1937 (1.8 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 67 bytes 4219 (4.1 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 67 bytes 4219 (4.1 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
¶ 2.2 Internet access test
# Use eth0 to access the Internet
root@linaro-alip:/# ping -I eth0 -c 8 www.baidu.com
PING www.wshifen.com (103.235.46.96) from 192.168.1.14 eth0: 56(84) bytes of data.
64 bytes from 103.235.46.96 (103.235.46.96): icmp_seq=1 ttl=45 time=277 ms
64 bytes from 103.235.46.96 (103.235.46.96): icmp_seq=2 ttl=45 time=270 ms
64 bytes from 103.235.46.96 (103.235.46.96): icmp_seq=3 ttl=45 time=225 ms 64 bytes from 103.235.46.96 (103.235.46.96): icmp_seq=4 ttl=45 time=272 ms 64 bytes from 103.235.46.96 (103.235.46.96): icmp_seq=5 ttl=45 time=275 ms 64 bytes from 103.235.46.96 (103.235.46.96): icmp_seq=6 ttl=45 time=255 ms 64 bytes from 103.235.46.96 (103.235.46.96): icmp_seq=7 ttl=45 time=221 ms
64 bytes from 103.235.46.96 (103.235.46.96): icmp_seq=8 ttl=45 time=281 ms
--- www.wshifen.com ping statistics ---
8 packets transmitted, 8 received, 0% packet loss, time 7008ms
rtt min/avg/max/mdev = 220.731/259.456/280.557/22.381 ms
# Use eth1 to access the Internet
Reference eth0
¶ 3 Set static IP address
¶ 3.1 Modify the configuration file
- Take gateway 192.168.1.1 as an example
cat /etc/network/interfaces
auto eth0
iface eth0 inet static
address 192.168.1.100
netmask 255.255.255.0
gateway 192.168.1.1
auto eth1
iface eth1 inet static
address 192.168.1.101
netmask 255.255.255.0
gateway 192.168.1.1
¶ 3.2 Restart network service
sudo systemctl restart networking
# or
reboot
¶ 4 Simple UDP DEMO program
¶ 4.1 Source code
- Server source code
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <arpa/inet.h>
#include <assert.h>
#include <sys/types.h>
#include <sys/socket.h>
int main()
{
int sockfd = socket(AF_INET, SOCK_DGRAM, 0);
assert(sockfd != -1);
struct sockaddr_in saddr, caddr;
memset(&saddr, 0, sizeof(saddr));
saddr.sin_family = AF_INET;
saddr.sin_port = htons(6000);
saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
int res = bind(sockfd, (struct sockaddr *)&saddr, sizeof(saddr));
assert(res != -1);
while (1)
{
int len = sizeof(caddr);
char buff[128] = {0};
recvfrom(sockfd, buff, sizeof(buff) - 1, 0, (struct sockaddr *)&caddr, (socklen_t *)&len);
printf("buff=%s\n", buff);
if (strncmp(buff, "end", 3) == 0)
{
break;
}
sendto(sockfd, "ok", 2, 0, (struct sockaddr *)&caddr, sizeof(caddr));
}
close(sockfd);
exit(0);
}
- Client source code
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <arpa/inet.h>
#include <assert.h>
#include <sys/types.h>
#include <sys/socket.h>
int main()
{
int sockfd = socket(AF_INET, SOCK_DGRAM, 0);
assert(sockfd != -1);
struct sockaddr_in saddr;
memset(&saddr, 0, sizeof(saddr));
saddr.sin_family = AF_INET;
saddr.sin_port = htons(6000);
saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
while (1)
{
char buff[128] = {0};
printf("input\n");
fgets(buff, sizeof(buff), stdin);
if (strncmp(buff, "end", 3) == 0)
{
break;
}
sendto(sockfd, buff, strlen(buff), 0, (struct sockaddr *)&saddr, sizeof(saddr));
memset(buff, 0, sizeof(buff));
int len = sizeof(saddr);
recvfrom(sockfd, buff, sizeof(buff) - 1, 0, (struct sockaddr *)&saddr, (socklen_t *)&len);
printf("recv: %s\n", buff);
}
close(sockfd);
exit(0);
}
¶ Phenomenon demonstration animation
¶ 5 Simple TCP DEMO program
¶ 5.1 Source code
- Server source code
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <arpa/inet.h>
#include <assert.h>
#include <sys/types.h>
#include <sys/socket.h>
int main() {
int sockfd = socket(AF_INET, SOCK_STREAM, 0);
assert(sockfd != -1);
struct sockaddr_in saddr;
memset(&saddr, 0, sizeof(saddr));
saddr.sin_family = AF_INET;
saddr.sin_port = htons(6000);
saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
int res = bind(sockfd, (struct sockaddr *)&saddr, sizeof(saddr));
assert(res != -1);
res = listen(sockfd, 5);
assert(res != -1);
while (1) {
struct sockaddr_in caddr;
socklen_t len = sizeof(caddr);
int clientfd = accept(sockfd, (struct sockaddr *)&caddr, &len);
assert(clientfd != -1);
char buff[128] = {0};
recv(clientfd, buff, sizeof(buff) - 1, 0);
printf("Received: %s\n", buff);
if (strncmp(buff, "end", 3) == 0) {
break;
}
send(clientfd, "Message received", 16, 0);
close(clientfd);
}
close(sockfd);
exit(0);
}
- Client source code
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <arpa/inet.h>
#include <assert.h>
#include <sys/types.h>
#include <sys/socket.h>
int main() {
int sockfd = socket(AF_INET, SOCK_STREAM, 0);
assert(sockfd != -1);
struct sockaddr_in saddr;
memset(&saddr, 0, sizeof(saddr));
saddr.sin_family = AF_INET;
saddr.sin_port = htons(6000);
saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
int res = connect(sockfd, (struct sockaddr *)&saddr, sizeof(saddr));
assert(res != -1);
while (1) {
char buff[128] = {0};
printf("input\n");
fgets(buff, sizeof(buff), stdin);
if (strncmp(buff, "end", 3) == 0) {
break;
}
send(sockfd, buff, strlen(buff), 0);
memset(buff, 0, sizeof(buff));
recv(sockfd, buff, sizeof(buff) - 1, 0);
printf("recv: %s\n", buff);
}
close(sockfd);
exit(0);
}
¶ 5.2 Phenomenon demonstration animation
