神的诱惑 发表于 2011-2-28 15:55:06

TQ2440开机时出错

大家好，我的TQ2440开机时出错，老是重复启动，nor启动时串口信息为
##### EmbedSky BIOS for SKY2440/TQ2440 #####
Press Space key to Download Mode !

#####    Boot for Nor Flash Main Menu   #####
Download u-boot or STEPLDR.nb1 or other bootloader to Nand Flash
Download Eboot to Nand Flash
Download Linux Kernel to Nand Flash
Download CRAMFS image to Nand Flash
Download YAFFS image to Nand Flash
Download Program (uCOS-II or TQ2440_Test) to SDRAM and Run it
Boot the system
Format the Nand Flash
Set the boot parameters
Download User Program (eg: uCOS-II or TQ2440_Test)
Download LOGO Picture (.bin) to NandFlash
Set LCD Parameters
Download u-boot to Nor Flash
Reboot u-boot
Test Linux Image (zImage)
quit from menu
Enter your selection: *** Warning - bad CRC or NAND, using default environment



##### EmbedSky BIOS for SKY2440/TQ2440 #####
Press Space key to Download Mode !
就是重复出现上面2段话，按教程烧进了光盘自带的东华3.5的uboot还是这样，求高手指导啊？

神的诱惑 发表于 2011-2-28 15:57:09

还有从nand启动时串口信息为##### EmbedSky BIOS for SKY2440/TQ2440 #####
Press Space key to Download Mode !
Booting Linux ...
Copy linux kernel from 0x00200000 to 0x30008000, size = 0x00200000 ... Copy Kernel to SDRAM done,Warning: this binary is not compressed linux kernel image
zImage magic = 0xffffffff
NOW, Booting Linux......
*** Warning - bad CRC or NAND, using default environment



##### EmbedSky BIOS for SKY2440/TQ2440 #####
Press Space key to Download Mode !
Booting Linux ...
Copy linux kernel from 0x00200000 to 0x30008000, size = 0x00200000 ... Copy Kernel to SDRAM done,Warning: this binary is not compressed linux kernel image
zImage magic = 0xffffffff
NOW, Booting Linux......
*** Warning - bad CRC or NAND, using default environment
可是我记得明明把nand完全格式化过的，怎么还有linux呢 ？

machoe 发表于 2011-2-28 18:46:29

完全格式化，然后，重新烧录uboot和内核等镜像

神的诱惑 发表于 2011-2-28 18:53:00

3# machoe


我发现从nor启动时 要是把屏幕拿掉，串口信息就是正常的，开机4个led也是绿色的接上屏幕后，开发板就不停的自动重启，串口信息一直自动重复 难道屏幕坏了？

神的诱惑 发表于 2011-3-1 11:54:51

找到原因了 原来是电源电流太小了 我换个电源就好了 呵呵

天嵌_support1 发表于 2011-3-1 15:53:12

:)这个还真是个值得借鉴的例子。

mo0000021 发表于 2011-10-19 14:51:19

关注下 先。

xuyuefei1988 发表于 2011-12-3 10:30:35

关注下，以备不换……

forgd 发表于 2012-5-24 21:36:02

神的诱惑 发表于 2011-3-1 11:54 static/image/common/back.gif
找到原因了 原来是电源电流太小了 我换个电源就好了 呵呵

怎么会是这个原因呢····················
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