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C6A816x Evaluation Module UART not working properly.

Hi all,

I just got the C6A816x Evalution Module and all the tools kit. I then try the Quick Started Guide for booting it up.

After put up everything, i turn the power switch on.

at minicom terminal output, i could see the uboot coming, and kernel extraction. Then finally i got to the command line. ( no graphics, cause i messed up the rootfs ).

So i turn the board off and fix the SD card by scripts from SDK.  I plugin again, and the second time, i got only few random lines of uboot come to minicom.

Third time and so many other time, i got nothing. It is been a week now.

So as many time i tried again,( fixed up the SD card, try to boot from NAND ) . it just nothing come out of UART,  so my question it :

Is the Board has some bug problem, i really can't understand why ? because i still receive the power uart output.

 

Please help, thank.