我的板子是DM365的DVR，启动板子，串口输出信息是：
Quick UART Initialize passed!!
DM26X initiakization passed!
UBL Version :0.3.0
Booting Catalog Boot Loader
BootMode = NAND
Starting NAND Copy.....
No valid boot image found!
NAND Boot failed.
Aborting....
然后下面就没有内容了，停在这里。
用CCS准备重新烧写Uboot Ubl时，有下面出错，
Trouble Reading Register :Error 0x80002004/-342 Fatal Error during:Register ,control,This error was generated by TI'sUSCIF driver. SC_ERR_HUNG_COMMAND<-342>Failure due to the controller commanf finish taking too long
请问各位专家，这个问题怎么解决？？
