Interfacing

Uboot button...

5 11906
as there is written in banana pi spec. On my PI I have "UBoot button (optional): Behind HDMI connector"
How can I use it ? Can I boot from LAN not from SD card ??
No one knows what for is this buton made ???
It makes me and

http://forum.lemaker.org/cn/view ... &extra=page%3D1

1. compile u-boot
$ git clone git://github.com/linux-sunxi/u-boot-sunxi.git
$ make Cubieboard2_config
$ make
2. burn u-boot
$ dd if=/dev/zero of=/dev/sdb bs=1M count=1
$ dd if=u-boot-sunxi-with-spl.bin of=/dev/sdb bs=1024 seek=8
3. start u-boot

--->8---
U-Boot SPL 2014.04-rc2-10390-g96510e1 (Apr 04 2014 - 21:11:38)
Board: Cubieboard2
DRAM: 1024 MiB
CPU: 960000000Hz, AXI/AHB/APB: 3/2/2
spl: not an uImage at 1600


U-Boot 2014.04-rc2-10390-g96510e1 (Apr 04 2014 - 21:11:38) Allwinner Technology

CPU:   Allwinner A20 (SUN7I)
Board: Cubieboard2
I2C:   ready
DRAM:  1 GiB
MMC:   SUNXI SD/MMC: 0
*** Warning - bad CRC, using default environment

In:    serial
Out:   serial
Err:   serial
Net:   Phy not found
dwmac.1c50000
Warning: failed to set MAC address

Hit any key to stop autoboot:  0

The question was more about how to use this button .. Can boot from an SD card or not? Do you hold the button down and turn the power on or may be reset? Can you answer my question?

Post Last Edited by voiceshen at 2014-4-26 13:18

Reply 2# Janowski_Pawel
Please reference:  Booting From Usb Otg Port
http://docs.cubieboard.org/tutor ... g_from_usb_otg_port

Also: http://linux-sunxi.org/FEL

Heuh  
U-botton
Funny everbody reads / sees it but no one can explain the working of it.
Read the replies above.

Same question as the topic starter:
as there is written in banana pi spec. On my PI I have "UBoot button (optional): Behind HDMI connector"
How can I use it ? Can I boot from LAN not from SD card ??

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