操作步骤
1、生成ttyUSB节点
QT_6818kerneldriversu***serial option.c
static const struct u***_device_id option_ids[] = {
//added by rpdzkj ivy for 3G 2015.11.6- { USB_DEVICE(0x05C6, 0x9090) }, //for UC15
- { USB_DEVICE(0x05C6, 0x9003) }, //for UC20
- { USB_DEVICE(0x05C6, 0x9215) }, //for EC20
- { USB_DEVICE(0x2c7c, 0x0125) }, //for EC20 new version
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增加EC20的ID
编译烧写后会生成ttyUSB*
- [root@rpdzkj]# ls /dev/ttyUSB*
- /dev/ttyUSB0 /dev/ttyUSB1 /dev/ttyUSB2 /dev/ttyUSB3 /dev/ttyUSB4
- [root@rpdzkj]#
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2、添加拨号脚
把附件里的wcdma-EC20放到U盘，接到开发板上
- [root@rpdzkj]# cp /udisk/wcdma-EC20 /etc/ppp/peers/
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3、down掉以太网，以太网静态IP设置在开机使能，会影响4G网络节点使用，所以要down掉
- [root@rpdzkj]# ifconfig eth0 down
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4、拨号
- [root@rpdzkj]# pppd call wcdma-EC20 &
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提示信息如下
- [root@rpdzkj]# abort on (NO CARRIER)
- abort on (ERROR)
- abort on (NO DIALTONE)
- abort on (BUSY)
- abort on (NO ANSWER)
- send (AT^M)
- expect (OK)
- AT^M^M
- OK
- -- got it
- send (ATZ^M)
- expect (OK)
- ^M
- ATZ^M^M
- OK
- -- got it
- send (AT+CGDCONT=1,"IP","3gnet",,0,0^M)
- expect (OK)
- ^M
- AT+CGDCONT=1,"IP","3gnet",,0,0^M^M
- OK
- -- got it
- send (AT+CFUN=1^M)
- expect (OK)
- ^M
- AT+CFUN=1^M^M
- OK
- -- got it
- send (ATDT*99#^M)
- expect (CONNECT)
- ^M
- ATDT*99#^M^M
- CONNECT
- -- got it
- send (^M)
- Serial connection established.
- Using interface ppp0
- Connect: ppp0 <--> /dev/ttyUSB3
- CHAP authentication succeeded
- CHAP authentication succeeded
- Could not determine remote IP address: defaulting to 10.64.64.64
- local IP address 100.107.64.108
- remote IP address 10.64.64.64
- primary DNS address 202.96.128.86
- secondary DNS address 202.96.134.133
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5、查看 ppp0
- [root@rpdzkj]# ifconfig
- lo Link encap:Local Loopback
- inet addr:127.0.0.1 Mask:255.0.0.0
- inet6 addr: ::1/128 Scope:Host
- UP LOOPBACK RUNNING MTU:16436 Metric:1
- RX packets:0 errors:0 dropped:0 overruns:0 frame:0
- TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
- collisions:0 txqueuelen:0
- RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
- ppp0 Link encap:Point-to-Point Protocol
- inet addr:100.107.64.108 P-t-P:10.64.64.64 Mask:255.255.255.255
- UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
- RX packets:4 errors:0 dropped:0 overruns:0 frame:0
- TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
- collisions:0 txqueuelen:3
- RX bytes:52 (52.0 B) TX bytes:58 (58.0 B)
- [root@rpdzkj]#
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6、上网测试
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