LinkIt Smart 7688 -[3]- Build the firmware from source codes

環境

ubuntu-14.04.3-desktop-amd64

VirtualBox

Wi-Fi

Steps

1. 安裝build所須的相關工具

sudo apt-get install git g++ libncurses5-dev subversion libssl-dev gawk libxml-parser-perl unzip

2. 下載OpenWrt CC source codes

git clone git://git.openwrt.org/15.05/openwrt.git

3. Prepare the default configuration file for feeds

cd openwrt

cp feeds.conf.default feeds.conf

4. Add the linkIt Smart 7688 development board’s feed

echo src-git linkit https://github.com/MediaTek-Labs/linkit-smart-7688-feed.git >> feeds.conf

5. Update the feed information for all available packages to build the firmware

./scripts/feeds update

執行後會產生一資料夾 openwrt/feeds

6. Install all packages

./scripts/feeds install –a

6.1 查看kernel支援的wifi driver openwrt/feeds/linkit/mtk-sdk-wifi/wifi_binary

gitbug上的列表

https://github.com/MediaTek-Labs/linkit-smart-7688-feed/tree/master/mtk-sdk-wifi/wifi_binary

目前支援到3.18.44

在路徑 openwrt/include/kernel-version.mk裡可以看到預設的kernel版本為3.18.45

要修改為3.18.44

確認使用linux kernel的版本 openwrt/target/linux/ramips/Makefile

6.2 Linux的ftp載點已經失效,所以必須添加新的位址 openwrt/scripts/download.pl

push @mirrors, “https://www.kernel.org/pub/$dir”;

6.3 修改MD5SUB值

7c52da2f54381a84960118b5bf23381a

路徑openwrt/include/kernel-version.mk

7. Prepare the kernel configuration

make menuconfig

選擇

Target System : Ralink RT288x/RT3xxx

Subtarget : MT7688 based boards

Target Profile : LinkIt 7688

存檔,離開

8. Start the compilation process

make V=99

9. build完成後會產生一bin檔

openwrt/bin/ramips/openwrt-ramips-mt7688-LinkIt7688-squashfs-sysupgrade.bin

---

ISSUE

confuse-2.7.tar.gz download failed

wget 位址 –O dl/confuse-2.7.tar.gz

ISSUE

avrdude-6.1.tar.gz download failed

wget 位址 –O dl/avrdude-6.1.tar.gz

ISSUE

libid3tag-0.15.1b.tar.gz download failed

wget 位址 –O dl/libid3tag-0.15.1b.tar.gz