苗火 Nicholas

[ubuntu]The volume "boot" has only 9 MB disk space remaining

2017-4-28 萧 写技术

Open terminal and check your current kernel: uname -r  DO NOT REMOVE THIS KERNEL! Next, type the command below to view/list all installed kernels on your system. dpkg --list | grep linux-image  Find all the kernels that lower than your current kernel. When you know which kernel ...

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标签: ubuntu

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[embedded]Install qt lib for pc and embedded

2017-4-28 萧 写技术

$ tar zxvf qt-everywhere-opensource-src-4.8.6.tar.gz $ sudo apt-get install libx11-dev libxext-dev libxtst-dev $ cp qt-everywhere-opensource-src-4.8.6/ qt-everywhere-opensource-src-4.8.6-x11 -fr $ cd qt-everywhere-opensource-src-4.8.6-x11/ $ ./configure --prefix=/usr/local/qt-4.8.6-x11 $ ...

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标签: embedded

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[embeded] Port u-boot to mini2440 (3)

2017-4-26 萧 写技术

After embedded board run to kernel, it will called a file system. It is NAND flash in mini2440 system board, so take a yaffs file system to the flash. This part is for porting yaffs file system function in u-boot. 1.Edit /common/cmd_nand.c: diff -uNr u-boot-2009.08_nand/common/cmd_...

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标签: embedded

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[embeded] Port u-boot to mini2440 (2)

2017-4-25 萧 写技术

Step one -> Port NAND flash driver: 1.Edit /deivers/mtd/nand/s3c2410_nand.c diff -uNr u-boot-2009.08_0319_ok/drivers/mtd/nand/s3c2410_nand.c u-boot-2009.08_nand/drivers/mtd/nand/s3c2410_nand.c --- u-boot-2009.08_0319_ok/drivers/mtd/nand/s3c2410_nand.c 2017-03-19 15:24:54.00000000...

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标签: embedded

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[embedded]nand write.yaffs: Attempt to write error length data!

2017-4-21 萧 写技术

[ ~nicholas@anycle.com ]# tftp 0x30008000 rootfs.img dm9000 i/o: 0x20000300, id: 0x90000a46 DM9000: running in 16 bit mode MAC: 08:00:3e:26:0a:5b could not establish link Using dm9000 device TFTP from server 192.168.0.52; our IP address is 192.168.0.69 Filename 'rootfs.img'. Load address: 0...

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标签: embedded

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[embedded]Wrong of kernel while initialling the NAND flash

2017-4-19 萧 写技术

There is something wrong with the kernel while initialling the NAND flash. brd: module loaded S3C24XX NAND Driver, (c) 2004 Simtec Electronics s3c24xx-nand s3c2440-nand: Tacls=3, 29ns Twrph0=7 69ns, Twrph1=3 29ns s3c24xx-nand s3c2440-nand: NAND soft ECC NAND device: Manufacturer I...

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标签: embedded

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[embedded]u-boot: Retry count exceeded;starting again

2017-4-19 萧 写技术

@:tftp 0x30008000 rootfs.img Filename 'rootfs.img'. Load address: 0x30008000 Loading: T ##########T T #####################################################T ##T T          #T T T T ###### Retry count exceeded; starting again dm9000 i/o: 0x20000300, id: 0x90000a46 DM9...

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标签: embedded

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时间倒流的悖论

2017-4-14 萧 写世界

如果时间可以倒流的话， 比如在今天，我突然回到了十年前的某一个早晨， 那么，现在是2007年4月14日上午8点60， 你说，对于这个时候的我来说， 2017年的那场时间倒流， 是过去？ 还是未来？ 如果时间倒流是过去的话， 那么，今天依然没有回到从前呀！ 如果时间倒流是未来的话， 我又怎么知道这件事情的呢？ 如果未来还没有发生过， 这个时候我又从哪里来的呢？ 这便是一场时间倒流的悖论。 ...

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[embedded]Boot kernel from tftp server

2017-4-14 萧 写技术

1.Change linux kernel image zImage to zImage.img. mkimage -n 'nicholas' -A arm -O linux -T kernel -C none -a 0x30008000 -e 0x30008040 -d zImage zImage.img There is a information head in zImage.img used to recognised by u-boot. 2.Download to RAM of embedded board. I us...

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标签: embedded

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[ubuntu]Install tftp server

2017-4-14 萧 写技术

1.Install tftp-server sudo apt-get install tftpd-hpa sudo apt-get install tftp-hpa  tftp-hpa is client tftpd-hpa is server 2.Config sudo vim /etc/default/tftpd-hpa TFTP_USERNAME="tftp" TFTP_ADDRESS="0.0.0.0:69" TFTP_DIRECTORY="tftp director" TFTP_OPTIONS="-l -c -s" 3.Restart ...

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标签: ubuntu embedded

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