紧急求助：开发板启动不起来了

开发板TQ2440，启动不起来了，老是
Start Linux ...
Copy linux kernel from 0x00200000 to 0x30008000, size = 0x00200000 ... Copy Kern
el to SDRAM done,NOW, Booting Linux......
Uncompression linux
然后就自动重启了
重新下载镜像还是这个样子



然后下载测试程序到sdram也不行：
#####    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)
Download LOGO Picture (.bin) to Nand  Flash
[l] Set LCD Parameters
[o] Download u-boot to Nor Flash
[r] Reboot u-boot
[q] quit from menu
Enter your selection: 7
USB host is connected. Waiting a download.

Now, Downloading [ADDRESS:30000000h,TOTAL:599738]
RECEIVED FILE SIZE:  599738 (585KB/S, 1S)
## Starting application at 0x30000000 ...
*** Warning - bad CRC or NAND, using default environment

1# maxco


自己的镜像还是光盘的？

用的光盘的镜像，偶尔会好用一次，然后下次进又这样了，是不是硬件坏了啊

QQ远程看看 1526107786