Making U-boot---at91sam9260 article

Making U-boot

---at91sam9260 article

0. Make cross-compilation chain See "Arm cross-compiler tool making V2"

---------------------------------------------------reprint Please specify: xiaobin_hlj80----

1. Burn Write Boot-uboot

View at91sam9260 chip documentation, about memory parts

P19–6221s.pdf (http://www.atmel.com/zh/cn/devices/SAM9260.aspx?tab=documents)

Start Address: 0x1000,0000

(1) Installing J-link software

To download the website, the following is an optional version

A. V4.52

https://www.segger.com/jlink-software.html?step=1&file=JLink_452

B. v4.94g

https://www.segger.com/jlink-software.html?step=1&file=JLink_494g

C. v4.94h

https://www.segger.com/jlink-software.html?step=1&file=JLink_494h

(2) Start burning write

For detailed steps, see: S2.4

2. Burn Write U-boot

(1) Setting environment variables

Create a new file at the user root:. pam_environment

The contents are as follows:

Cross_compile default=/home/at91/x-tools/arm-softfp-linux-gnueabi/bin/arm-softfp-linux-gnueabi-

(2) Download U-boot

Download page: ftp://ftp.denx.de/pub/u-boot/

Select the latest version to download.

about: u-boot1.1.5

V1.1.5 after the u-boot made a major revision! This version is recommended if V1.1.5 can be used.

(3) Unzip and execute

     #tar jxvf u-boot-2014.10.tar.bz2     #make clean     #make at91sam9260ek_dataflash_cs0_config     #make DEP     # Make

(4) Start burning write

Copy the files generated under the u-boot-2014.10 directory U-boot.bin to the U-boot directory.

1) Open the project preset configuration

2) Connect the target board

Target-〉connect;

See the FAQ section for questions about connectivity.

Connection Successful

3) Open Data file

File-〉open datafile

Before and after entering the start address

After opening

4) Write Data

5) Close the connection

FAQ

1. New Version Upgrade

Using the new version J-link will upgrade the Fireware.

The default upgrade can be!

2. Rtck did not respond

Workaround: Repeat DETCT

Options-〉projectsettings

On the JTAG scan chain information click "DETCT"

Before detection

After detection

Making U-boot---at91sam9260 article