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   #####
[1] Download u-boot or STEPLDR.nb1 or other bootloader to Nand Flash
[2] Download Eboot to Nand Flash
[3] Download Linux Kernel to Nand Flash
[5] Download CRAMFS image to Nand Flash
[6] Download YAFFS image to Nand Flash
[7] Download Program (uCOS-II or TQ2440_Test) to SDRAM and Run it
[8] Boot the system
[9] Format the Nand Flash
[0] Set the boot parameters
[a] Download User Program (eg: uCOS-II or TQ2440_Test)
[b] Download LOGO Picture (.bin) to Nand  Flash
[l] Set LCD Parameters
[o] Download u-boot to Nor Flash
[r] Reboot u-boot
[t] Test Linux Image (zImage)
[q] 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？

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 ？

完全格式化，然后，重新烧录uboot和内核等镜像

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？

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

:)这个还真是个值得借鉴的例子。

关注下 先。

关注下，以备不换……

神的诱惑 发表于 2011-3-1 11:54
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····················