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No screen display after flash nand memory


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#1 Galactic

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Posted 01 January 2017 - 06:54 PM

Hello,

In order to flash nand memory on my pcDuino3B (manufactured  08/2015), on the web page :

http://www.linksprit...nano-pcduino3b/

I have downloaded : (I use Linux/dd)

- pcduino3_nano_a20_kernel_dd_20141030.img  (kernel)

- pcduino3nano_ubuntu_20140807.7z   (Ubuntu)

 

(what is Ubuntu 14 at the end of the web page?)

 

At the end of the flash process, TX and RX leds are blinking slowly : it's OK.

When I reboot, I have the splash screen "PCDUINO" and after nothing : no boot messages, no logging.

 

The network is OK : I can connect to the OS with ssh (user ubuntu)

 

I don't know where is the poblem!

Thanks for your help.

 



#2 Galactic

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Posted 09 January 2017 - 10:51 AM

Hello,

After an other try to flash the nand memory, the system work fine :)

 

But how to use the file pcduino3b_nano_dd_1404.zip (Ubuntu 14 at the end of the web page http://www.linksprit...nano-pcduino3b/ ) in order to flash nand memory.

 

We have 2 case :

case 1 : copy (cp) the file pcduino3b_nano_dd_1404.img on the sdCard vfat file system

case 2 : copy (dd) the file pcduino3b_nano_dd_1404.img on the sdCard.

 

After the boot kernel, it is waiting for update.sh, I modify update.sh like this :

#!/bin/sh
cd `dirname $0`
IMG=pcduino3b_nano_dd_1404.img
........

In case 1, I put update.sh on the sdCard with the Ubuntu image : it don't work.

In case 2 : I don't know how to do (append file with dd?).

 

Thanks for reply.

 






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