RALINK AP SDK 4.1.0.0 USER’s MANUAL

1 SDK History .................................................................................................................................. 9
2 Version History........................................................................................................................... 14
3 Overview of the Ralink AP Demo Board ................................................................................. 15
3.1 RT2880 .................................................................................................................................. 15
3.2 RT3052 .................................................................................................................................. 19
3.3 RT3883 .................................................................................................................................. 21
3.4 RT3352 .................................................................................................................................. 24
3.5 RT5350 .................................................................................................................................. 26
3.6 RT6855 .................................................................................................................................. 29
3.7 RT6856 .................................................................................................................................. 30
3.8 MT7620 .................................................................................................................................. 32
4 AP SDK source code overview ................................................................................................ 36
5 Tool-chain ................................................................................................................................... 37
5.1 Install toolchain ...................................................................................................................... 37
5.2 Install LZMA Utility................................................................................................................. 37
5.3 Install mksquashfs utility ....................................................................................................... 37
6 Boot loader ................................................................................................................................. 39
6.1 Uboot Configuration .............................................................................................................. 39
6.2 Build the uboot Image ........................................................................................................... 40
6.3 Burn the uboot image ........................................................................................................... 40
7 User Library ................................................................................................................................ 42
7.1 Library Configuration............................................................................................................. 42
7.2 Library Porting ........................................................................................................................ 42
7.3 Build user library .................................................................................................................... 43
8 User Application......................................................................................................................... 44
8.1 Ralink Proprietary Applications ........................................................................................... 44
8.1.1 ATED ............................................................................................................................. 44
8.1.2 REG ............................................................................................................................... 44
8.1.3 FLASH ........................................................................................................................... 44
8.1.4 GPIO .............................................................................................................................. 45
8.1.5 MII_MGR ....................................................................................................................... 45
8.1.6 MTD ............................................................................................................................... 46
8.1.7 NVRAM.......................................................................................................................... 47
8.1.8 SPICMD ........................................................................................................................ 48
8.1.9 I2CCMD ......................................................................................................................... 48
8.1.10 Script .............................................................................................................................. 49
8.2 goahead ................................................................................................................................. 49
8.3 nvram library .......................................................................................................................... 49
8.4 wsc_upnp ............................................................................................................................... 49
8.5 iptables ................................................................................................................................... 49
8.6 ntpclient .................................................................................................................................. 49
8.7 mtd-utils ................................................................................................................................. 50
8.8 ppp-2.4.2 ................................................................................................................................ 50
8.9 bridge-utils .............................................................................................................................. 50
8.10 wireless_tools ......................................................................................................................... 50
8.11 inadyn ..................................................................................................................................... 50
8.12 zebra-0.95a_ripd .................................................................................................................... 50
8.13 wpa_supplicant-0.5.7 ............................................................................................................ 51
8.14 totd-1.5 ................................................................................................................................... 51
8.15 samba-3.0.2 ........................................................................................................................... 51
8.16 radvd-1.0 ................................................................................................................................ 51
8.17 pptp-client ............................................................................................................................... 51
8.18 rp-l2tp-0.4 ............................................................................................................................... 51
8.19 ctorrent-dnh3.2 ...................................................................................................................... 52
8.20 dhcp6 ...................................................................................................................................... 52
8.21 dnsmasq-2.40 ........................................................................................................................ 52
8.22 igmpproxy ............................................................................................................................... 52
8.23 matrixssl-1.8.3 ........................................................................................................................ 52
8.24 rp-pppoe-3.8 ........................................................................................................................... 53
8.25 usb_modeswitch-0.9.5 .......................................................................................................... 53
8.26 Port new user application ..................................................................................................... 53
9 Linux Kernel ............................................................................................................................... 56
9.1 Linux configuration ................................................................................................................ 56
9.2 Change Flash/DRAM Size ................................................................................................... 58
9.3 Change Switch Controller in RT2880 Platform ................................................................. 58
9.4 Update User/Kernel default settings ................................................................................... 59
9.5 Compile Linux image ............................................................................................................ 60
9.6 Port new Linux kernel module ............................................................................................. 60
9.7 Execute commands at boot up time ................................................................................... 62
9.8 Add new files in RootFs ........................................................................................................ 62
9.9 Image DownSize ................................................................................................................... 62
10 Flash Layout and Firmware Upgrade ...................................................................................... 66
10.1 Flash Layout ........................................................................................................................... 66
10.2 Firmware Upgrade................................................................................................................. 67
10.2.1 By Uboot........................................................................................................................ 67
10.2.2 By WebUI ...................................................................................................................... 68
11 FAQ ............................................................................................................................................. 70
11.1 RT2880 Default password/UART/networking setting ...................................................... 70
11.2 System requirements for the host platform........................................................................ 70
11.3 How to add new default parameter in flash ....................................................................... 71
11.3.1 Example 1 ..................................................................................................................... 71
11.3.2 Example 2 ..................................................................................................................... 71
11.4 Enable Ethernet Converter Feature .................................................................................... 72
11.5 Change RF chip from RT2820 to RT2850 on the RT2880 platform .............................. 74
11.6 How to change the Ethernet MAC address ....................................................................... 74
11.7 How to configure GPIO ports ............................................................................................... 75
11.8 Use GPIO to turn on LED ..................................................................................................... 76
11.9 Use LED firmware to turn on LED ...................................................................................... 80
11.10 How to start the telnet server ............................................................................................... 83
11.10.1 busybox setting ............................................................................................................ 83
11.10.2 Linux setting .................................................................................................................. 83
11.11 11n bit rate derivation ........................................................................................................... 84
11.12 How to build a single image for the flash programmer .................................................... 87
11.13 How to power down the RT3x5x build-in 10/100 PHYs ................................................... 89
11.14 How to power down the RT6855/RT6856 build-in 10/100 PHYs ................................... 90
11.15 How to enable NFS client ..................................................................................................... 91
11.16 How to add a new language to the web UI ........................................................................ 92
11.17 How to enable watchdog ...................................................................................................... 93
11.18 How to enable USB storage on the RT305x platform ...................................................... 94
11.19 How to enable USB automount on the RT305x platform ................................................ 95
11.20 How to enable software QoS ............................................................................................... 96
11.21 Software QoS information .................................................................................................... 99
11.21.1 Software QoS – Preface ............................................................................................. 99
11.21.2 Software QoS – Concept ............................................................................................ 99
11.21.3 Software QoS – Usage ............................................................................................... 99
11.22 How to enable USB Ethernet (example for ASIX AX88XXX) ....................................... 103
11.23 How to build a single image for the RT2880 8M flash platform .................................... 104
11.24 How to start a printer server (example for HP officejet 4355) ....................................... 105
11.25 How to force the RT3052 link speed ................................................................................ 107
11.26 How to verify IGMP snooping function ............................................................................. 109
11.27 EHCI/OHCI USB Power Saving ........................................................................................ 110
11.28 Auto-frequency and Power Saving ................................................................................... 111
11.29 Concurrent AP porting Guide ............................................................................................ 116
11.30 SuperDMZ usage guide ..................................................................................................... 125
11.31 How to support IPv6 Ready Logo ..................................................................................... 126
11.32 How to enable iPerf tool ..................................................................................................... 128
11.33 How to enable ebtables ...................................................................................................... 129
11.34 How to enable IPv6 Rapid Deployment (6rd) .................................................................. 129
11.35 How to enable IPv6 DS-Lite ............................................................................................... 133
11.36 How to modify flash layout ................................................................................................. 137
11.37 How to reduce Linux FW size. ........................................................................................... 140
11.38 How to change internal GSW PHY Base Address. ........................................................ 141
11.39 How to support new USB 3G dongle ................................................................................ 141
11.40 How to enable USB 3G dongle function .......................................................................... 142

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