買了一套友善的板子 micro2440
由於win下面的dnw不是很好用
於是便裝了fc14下面的dnw for linux ，很好用，也很方便
2 安裝
2.1 解壓
$tar xzvf dnw_linux.tar.gz
dnw_linux/
dnw_linux/secbulk/
dnw_linux/secbulk/makefile
dnw_linux/secbulk/secbulk.c
dnw_linux/dnw/
dnw_linux/dnw/dnw.c
其中secbulk.c是linux的usb驅動, dnw.c 是寫入工具的源**
2.2 驅動模組的編譯與載入
$cd secbulk
$make -c /lib/modules/`uname -r`/build m=`pwd` modules
如果編譯出錯，差東西，可能是沒有裝核心的東西
[ty@tiany dnw]$ ll
total 352
-rw-rw-r-- 1 ty ty 42 oct 25 2008 makefile
-rw-r--r-- 1 root root 55 mar 9 15:46 modules.order
-rw-r--r-- 1 root root 0 mar 9 15:46 module.symvers
-rw-rw-r-- 1 ty ty 4530 jan 6 2009 secbulk.c
-rw-r--r-- 1 root root 164268 mar 9 15:46 secbulk.ko
-rw-r--r-- 1 root root 497 mar 9 15:46 secbulk.mod.c
-rw-rw-r-- 1 root root 45328 mar 9 15:46 secbulk.mod.o
-rw-r--r-- 1 root root 120112 mar 9 15:46 secbulk.o
insmod 載入模組,注意 root 許可權
$sudo insmod secbulk.ko
成功載入後用 dmesg 命令檢視日誌， 通過grep過濾
[ty@tiany dnw]$ dmesg | grep secbulk
[ 1882.227272] secbulk:secbulk loaded
[ 1882.227305] usbcore: registered new inte***ce driver secbulk
2.3 編譯 dnw 工具
$cd dnw
$gcc -o dnw dnw.c
編譯成功後生成可執行dnw
3 使用
我是fc14系統，核心版本為
[ty@tiany dnw]$ uname -a
linux tiany.lab2202 2.6.35.6-45.fc14.i686 #1 smp mon oct 18 23:56:17 utc 2010 i686 i686 i386 gnu/linux
連上裝置，用dmesg可以看到usb鏈結的資訊
[ 1152.956029] usb 7-2: new full speed usb device using uhci_hcd and address 4
[ 1153.115268] usb 7-2: new usb device found, idvendor=5345, idproduct=1234
[ 1153.115271] usb 7-2: new usb device strings: mfr=1, product=2, serialnumber=0
[ 1153.115274] usb 7-2: product: sec s3c2410x test b/d
[ 1153.115275] usb 7-2: manufacturer: system mcu
[ 1824.500201] usb 7-2: usb disconnect, address 4
[ 1882.227272] secbulk:secbulk loaded
[ 1882.227305] usbcore: registered new inte***ce driver secbulk
[ 2061.736044] usb 7-2: new full speed usb device using uhci_hcd and address 5
[ 2061.897086] usb 7-2: new usb device found, idvendor=5345, idproduct=1234
[ 2061.897092] usb 7-2: new usb device strings: mfr=1, product=2, serialnumber=0
[ 2061.897097] usb 7-2: product: sec s3c2410x test b/d
[ 2061.897100] usb 7-2: manufacturer: system mcu
[ 2061.900170] secbulk:secbulk probing...
[ 2061.900174] secbulk:bulk out endpoint found!
[ty@tiany dnw]$ sudo ./dnw 2440test_n35.bin
[sudo] password for ty:
file name : 2440test_n35.bin
file size : 4033684 bytes
writing data...
100% 4033694 bytes ok
ok，安裝測試完畢，使用很方便
筆記發現乙個奇怪的問題，我用的mirco2440sdk這塊板子，
更換核心板後，dnw老是用不起，不知道為什麼
secbulk.ko
可以載入成功，但是連線上usb後 dmesg檢視訊息 輸出以下錯誤
611.547551] usbcore: registered new inte***ce driver secbulk
[ 637.539046] usb 7-1: new full speed usb device using uhci_hcd and address 10
[ 637.653055] usb 7-1: device descriptor read/64, error -71
[ 637.868175] usb 7-1: device descriptor read/64, error -71
[ 638.071186] usb 7-1: new full speed usb device using uhci_hcd and address 11
[ 638.185052] usb 7-1: device descriptor read/64, error -71
[ 638.399067] usb 7-1: device descriptor read/64, error -71
[ 638.602053] usb 7-1: new full speed usb device using uhci_hcd and address 12
[ 639.011046] usb 7-1: device not accepting address 12, error -71
[ 639.164052] usb 7-1: new full speed usb device using uhci_hcd and address 13
[ 639.573154] usb 7-1: device not accepting address 13, error -71
[ 639.573180] hub 7-0:1.0: unable to enumerate usb device on port 1
不知道為什麼
然後我換回之前除錯的核心板
又可以使用了
[ 756.766161] usb 7-1: new full speed usb device using uhci_hcd and address 14
[ 756.926082] usb 7-1: new usb device found, idvendor=5345, idproduct=1234
[ 756.926089] usb 7-1: new usb device strings: mfr=1, product=2, serialnumber=0
[ 756.926093] usb 7-1: product: sec s3c2410x test b/d
[ 756.926097] usb 7-1: manufacturer: system mcu
[ 756.929177] secbulk:secbulk probing...
[ 756.929181] secbulk:bulk out endpoint found!
[ 848.500086] usb 7-1: usb disconnect, address 14
[ 848.500157] secbulk:secbulk disconnected!
[ 849.456052] usb 7-1: new full speed usb device using uhci_hcd and address 15
[ 849.615259] usb 7-1: new usb device found, idvendor=5345, idproduct=1234
[ 849.615265] usb 7-1: new usb device strings: mfr=1, product=2, serialnumber=0
[ 849.615270] usb 7-1: product: sec s3c2410x test b/d
[ 849.615273] usb 7-1: manufacturer: system mcu
[ 849.618335] secbulk:secbulk probing...
[ 849.618339] secbulk:bulk out endpoint found!
真實奇怪
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